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nader NDW3 Series Manual

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文件编号:NDT2920213
文件版本:17
Shanghai Liangxin Electrical Co., Ltd.
NDW3 Series of
Air Circuit Breaker Manual
Project Name: NDW3 Series of Air Circuit Breaker
Project No.: P15041
Prepared by: Jia Jia
Date: 2021/05/20
第 1 页 共 149 页
Internal & confidential file

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  • Page 1 文件编号:NDT2920213 文件版本:17 Shanghai Liangxin Electrical Co., Ltd. NDW3 Series of Air Circuit Breaker Manual Project Name: NDW3 Series of Air Circuit Breaker Project No.: P15041 Prepared by: Jia Jia Date: 2021/05/20 第 1 页 共 149 页 Internal & confidential file...
  • Page 2 文件编号:NDT2920213 文件版本:17 Date: 2021/05/20 Revision History Implement Prepared Reviewe Approve Version Revision Reason/Content ation Date d by d by Zhang Xiangan Zhang Newly increased document He Chun 20180401 Pengyu Huimin Zhang Modify the NDW3-6300 derating table Xiangan Modify the NDW3-2500 derating table Zhang He Chun 20180509...
  • Page 3 文件编号:NDT2920213 文件版本:17 normally closed auxiliary contact remains the original terminal definition； 3. Add NDW2-2500/6300 frame auxiliary contact（four- group conversion and six-group conversion） relative contents； 4. Order specification add language type option. Zhou 1. Correct NDW3-1600 product four-open and four-closed Yongqian, Zhang auxiliarycontact wiring number, changed to 47-62；...
  • Page 4 文件编号:NDT2920213 文件版本:17 3. Update the NDW3-1600 electrical wiring diagram and controller wiring diagram 4. Increase the content related to maintenance-type incentives Updated 2500 and above frame ATS wiring diagrams Wang 1.Update the bar chart 1.3 and add the breaking parameters of conghui 4000XU 20220725...
  • Page 5 文件编号:NDT2920213 文件版本:17 Contents Chapter 1 Product Overview ........................Chapter 2 Technical Characteristics ......................Chapter 3 Controller ............................. Chapter 4 Accessories ..........................Chapter 5 Field of Application ........................Chapter 6 Outline and Installation Dimensions ................... Chapter 7 Electrical Wiring Diagram ..................... Chapter 8 Ordering Type Selection Specification ................
  • Page 6 文件版本:17 Chapter 1 Product Overview 1.1 NDW3 product series ..................................7 1.2 Rated current of NDW3 series of circuit breaker ........................ 7 1.3 Breaking capacity and short-time withstand current of NDW3 circuit breaker ............. 7 1.4 Structure Design ..................................... 7 1.5 Product Features ....................................
  • Page 7 文件编号:NDT2920213 文件版本:17 Product overview 1.1 NDW3 product series NDW3-6300 NDW3-2500 NDW3-4000 NDW3-7500 NDW3-1600 1.2 Rated current of NDW3 series of circuit breaker 额定电流(A) 1000 1250 1600 2000 2500 3200 3600 4000 5000 6300 7500 壳架等级 NDW3-1600 NDW3-2500 NDW3-4000 NDW3-6300 NDW3-7500 1.3 Breaking capacity and short-time withstand current of NDW3 circuit breaker...
  • Page 8 2. Specification sign 10. Nameplate 3. Disconnected position “Connection”, “Test”, key lock (Optional function) “Separation” position locking and unlocking devices 4. Nader sign 12. Rocker operating position 5. Disconnection button "Connection", "Test" 6. Closing button "Separation" position indicator Counter (optional 14.
  • Page 9 文件编号:NDT2920213 文件版本:17 When the drawout type circuit breaker is in the separation position, pull out the black lever below the drawer to lock. Then the circuit breaker body can only pull out the drawer seat, and cannot be shaken to the "test"...
  • Page 10 文件编号:NDT2920213 文件版本:17 N-pole protection, current unbalance protection, MCR making capacity protection ■ Maintenance function: With fault record (8 times), historical current peak record, contact wear equivalent, query of operation times, clock function, self-diagnostic function, test function and fault display function ■...
  • Page 11 GB/T 20626.3-2006 Specific Environmental Condition – Electric and Electronic Products for Plateau - Part 3: Protection of Thunder and Lightning, Pollution, Condensation NDW3 series of air circuit breaker has obtained China Compulsory Certification (CCC) for products. 第 11 页 共 149 页...
  • Page 12 文件编号:NDT2920213 文件版本:17 Chapter 2 Technical Characteristics 2.1 NDW3-1600 Technical Parameter List..........................13 2.2 NDW3-2500 Technical Parameter List..........................14 2.3 NDW3-4000 Technical Parameter List..........................15 2.4 NDW3-6300 Technical Parameter List..........................15 2.5 NDW3-7500 Technical Parameter List..........................15 第 12 页 共 149 页 Internal &...
  • Page 13 文件编号:NDT2920213 文件版本:17 Technical Characteristics 2.1 NDW3-1600 Technical Parameter List Circuit breaker model NDW3-1600 Rated current In (+40℃) 200, 400, 630, 800, 1000, 1250, 1600 100%In N-pole rated current AC220/230/240, AC380/400/415, AC440/480, （V） Rated working voltage Ue AC660/690 Rated frequency f (Hz) 50/60 Rated insulation voltage Ui (V) 1000...
  • Page 14 文件编号:NDT2920213 文件版本:17 2. Closing time: Interval from the beginning of the circuit breaker closing to the end of the contact time for all pole contacts (the same below). 2.2 NDW3-2500 Technical Parameter List Circuit breaker model NDW3-2500 Rated current In (+40℃) 630, 800, 1000, 1250, 1600, 2000, 2500 North pole rated current 100%In...
  • Page 15 文件编号:NDT2920213 文件版本:17 Installation mode Fixed type, drawout type Horizontal wiring, vertical wiring, horizontal extended wiring, vertical extended wiring, Wiring method of the main circuit Mixed wiring (upper horizontal and lower vertical), mixed wiring (upper vertical and lower horizontal) Boundary dimension: Fixed type 3P 368×309.5×394 W×D×H mm...
  • Page 16 文件编号:NDT2920213 文件版本:17 AC1000V/1140V AC1140V/1380V/1500V AC220V/230V/240V 10000(800A~1600A), 8000(2000A, 2500A),6000(3200A, 4000A)) AC380V/400V AC415V, AC440V/480V Electrical life (times) 10000(800A~1600A), 6000(2000A, 2500A), 3000(3200A, 4000A)) AC660V/690V Operation frequency (20 times/hour) AC800V 2000(800A~1600A), 1000(2000A~4000A) Operati AC1000V/1140V 2000(800A~1600A), 1000(2000A, 2500A), 600(3200A, 4000A) perfor Electrical life (times) mance AC1140V/AC/1380V/1500V( Operation frequency 2000(800A~4000A)
  • Page 17 文件编号:NDT2920213 文件版本:17 AC1140V/1380V/1500V AC220V~415V AC440V/480V/660V/690V Rated short circuit making capacity Icm (peak value) AC800V (kA) AC1000V/1140V 145.2 AC1140V/1380V/1500V AC220V~415V AC440V/480V/660V/690V Rated short-time withstand current Icw (effective value) 1s AC800V (kA) AC1000V/1140V AC1140V/1380V/1500V AC220V~415V 6000(4000A), 4000 (5000A), 2000 (6300A) Electrical life (times) AC440V/480V/660V/690V 3500(4000A), 2500 (5000A), 1500 (6300A) Operation frequency (20...
  • Page 18 文件编号:NDT2920213 文件版本:17 Rated operating short-circuit AC220V~415V breaking capacity AC440V/480V/660V/690V Ics (effective value) (kA) AC220V~415V Rated short circuit making capacity Icm (peak value) (kA) AC440V/480V/660V/690V AC220V~415V Rated short-time withstand current Icw (effective value) 1s (kA) AC440V/480V/660V/690V 5000(4000A、5000A)、3000 (6300A)、2000 Electrical life (times) AC220V~415V Operation （7500A）...
  • Page 19 文件编号:NDT2920213 文件版本:17 第 19 页 共 149 页 Internal & confidential file...
  • Page 20 文件编号:NDT2920213 文件版本:17 Controller Controller is one of the main components of the circuit breaker, which can provide the function of protecting the overload, short circuit, grounding, current unbalance, overvoltage, undervoltage, voltage unbalance, overfrequency, underfrequency, reverse power and other failures, and realize reasonable operation of the power grid through the load monitoring, required value protection, regional interlocking and other functions.
  • Page 21 文件编号:NDT2920213 文件版本:17 3.2 Controller Functions NWK22/ NWK22 NWK22/V NWK21 NWK21/V Functional items NWK3 NWK31/V NWK32/V NWK32/ NWK31 Digital tube numbers and symbols √ √ — — — display Display interface LCD panel symbols and graphics — — √ √ √ display Overload long-time delay protection √...
  • Page 22 文件编号:NDT2920213 文件版本:17 Electric energy measurement (active electric energy, reactive electric — — — — √ energy, apparent electric energy) Harmonics measurement — — — — √ LED fault status indication √ √ √ √ √ Fault record (8 times) and query √...
  • Page 23 文件编号:NDT2920213 文件版本:17 3.3 Controller Panel Description ■ NWK21/NWK31 Controller NWK21/ NWK31 Controller Panel Description 1. Rated current sign 2. N-phase and A, B, C phases voltage indicators in order 3. Three-phase voltage and frequency value display screen 4. Three-phase current, N-phase current indicators 5.
  • Page 24 文件编号:NDT2920213 文件版本:17 NWK22/NWK32 Controller NWK22/ NWK32 Controller Panel Description 1. LCD interface display 2. “Normal” indicator (LED): the green LED always flashes as long as the controller is turned on and works properly. 3. "Communication" indicator (LED): It flashes during the communication connection.
  • Page 25 文件编号:NDT2920213 文件版本:17 3.4 Setting Values and Protective Features of Controller Setting Values and Protective Features of Controller Overload long time-delay protection NWK21/NWK31 &NWK22/NWK32 (0.4~1.0 or 1.25 Note ) In or OFF (OFF-Function off) Note: 1.0In in case of the power distribution protection; 1.25In in case of the generation Current setting value Ir protection.
  • Page 26 文件编号:NDT2920213 文件版本:17 Short-circuit short time-delay protection NWK21/NWK31 &NWK22/NWK32 NWK21/NWK31 Current setting value I (1.5～15) Ir or OFF (OFF-Function off) 0.1, 0.2, 0.3, 0.4 Time setting value T ON or OFF Protective features (accuracy Current Tripping time of ±10%) ≤I≤8Ir (8Ir) ×...
  • Page 27 文件编号:NDT2920213 文件版本:17 Continued: Setting Values and Protective Features of Controller Short-circuit instantaneous protection NWK21/NWK31 &NWK22/NWK32 Current setting value I (1.0～20)Inor OFF (OFF-Function off) Current (I/Ii) Tripping time Protective features (accuracy ≤0.85 Inaction of ±10%) ＜40ms Action ≥1.15 MCR protection NWK21/NWK31 &NWK22/NWK32 （1.0～20）In or OFF (factory default as 10In) Current setting value I Current (I/I...
  • Page 28 文件编号:NDT2920213 文件版本:17 The signal output is required to add a signal unit; set one DO of the signal unit as “grounding alarm”. Grounding alarm output Without the signal output, observe the controller display screen or read from the display indicator. Note: For details of the reverse and definite time limit, see the User Manual of NWK22 and NWK32 Controller,with the definite time limit as T Neutral line protection NWK21/NWK31 &NWK22/NWK32...
  • Page 29 文件编号:NDT2920213 文件版本:17 Protection/alarm start setting 5%～60% value Action/alarm delay time (s) 0.1～40.0 NWK22/NWK32 Alarm action return setting value 5%～start value Only when the execution mode is "alarm", this setting is Alarm return delay time 10～200 available Actual current unbalance Tripping time rate/setting value Protective features (accuracy of ±10%)
  • Page 30 文件编号:NDT2920213 文件版本:17 Without the signal output, observe the controller display screen or read from the display indicator. Protection execution mode Alarm/tripping/close Load monitoring function NWK21/NWK31 &NWK22/NWK32 Operation mode Current setting Time setting Current way 1 15s, 30s, 60s, (0.2~1.0) In+OFF 120s, 240s, 480s NWK21/NWK31 Current way 2...
  • Page 31 文件编号:NDT2920213 文件版本:17 Alarm return features of undervoltage Umin/return setting value Tripping time ＜0.9 protection Non-return (Accuracy of ±10%) inherent absolute ≥1.1 Returns according to the set delay time error: ±40 ms The signal output is required to add a signal unit; set one DO of the signal unit as Undervoltage protection alarm DO “undervoltage fault”.
  • Page 32 文件编号:NDT2920213 文件版本:17 error: ±40 ms Acts (or gives an alarm) according to the set delay ≥1.1 time Actual voltage unbalance Alarm action features of voltage Tripping time rate/setting value unbalance protection (Accuracy of ±10%) inherent absolute ≥1.1 Non-return error: ±40 ms ≤0.9 Returns according to the set delay time The signal output is required to add a signal unit;...
  • Page 33 文件编号:NDT2920213 文件版本:17 Reverse power value/Setting Reverse power protection Tripping time value action/alarm features ≤0.9 Inaction (no alarm) (Accuracy of ±10%) inherent absolute Acts (or gives an alarm) according to the set error: ±40 ms ≥1.1 delay time Reverse power protection/alarm return Reverse power value/Setting value Tripping time features...
  • Page 34 文件编号:NDT2920213 文件版本:17 Function Alarm, tripping, regional interlocking, general, grounding interlocking, short circuit setting interlocking Input form Normally open Normally closed Function See the table below, “Parameter Settings of Switch Output (DO)” setting Execution Normally opened Normally closed Execution mode Normally opened mode level level...
  • Page 35 文件编号:NDT2920213 文件版本:17 1.5×Ir 2.46 3.94 5.90 9.85 14.80 19.70 24.60 33.20 44.30 68.90 98.50 147.00 197.00 246.00 295.00 344.00 2×Ir 0.67 1.07 1.60 2.67 4.01 5.34 6.66 8.99 12.00 18.66 26.68 39.81 53.35 66.63 79.90 93.17 6×Ir 0.01 0.01 0.02 0.03 0.05 0.06...
  • Page 36 文件编号:NDT2920213 文件版本:17 3.5 Working Power Supply of Controller ■ The working power supply of controller is provided by the transformer and auxiliary power supply. To ensure reliable operation and breaking of small current in case of failure, please adopt the following 1), 2) Dual- power supply mode, as below: 1) To be powered by the power supply CT Normal operating conditions of the controller: the primary current single-phase and three-phase are no less...
  • Page 37 文件编号:NDT2920213 文件版本:17 3.7 Protection Characteristic Curve See the figure below for the schematic diagram of overload long time delay, short-circuit short time delay, short- circuit instantaneous and ground protection curve. Overload long delay time adjustable Overload long-time delay protection Overload long-time delay current adjustable Short-circuit short time-delay setting current adjustable...
  • Page 38 文件编号:NDT2920213 文件版本:17 Chapter 4 Accessories 4.1 Accessories list ..................................... 37 4.2 Electrical Control Accessories ..............................39 4.3 Signal Output Accessories ............................... 45 4.4 Related Accessories of Controller............................48 4.5 Safety Accessories ..................................66 4.6 Lock and Interlocking Device ..............................68 4.7 Power Supply Conversion System ............................
  • Page 39 文件编号:NDT2920213 文件版本:17 Accessories 4.1 Accessories list Accessory Installation Accessory name Configuration Remarks category method and type Standard Fixed type/drawout Closed electromagnet type configuration Choose one of the Shunt release/Maintained shunt Standard Fixed type/drawout two, the retention type type is suitable for release configuration 2500/4000 frame...
  • Page 40 文件编号:NDT2920213 文件版本:17 Optional 6-channel programmable output Fixed type/drawout ordering for module NWDF1-C6 type customers Optional Accessory monitoring unit Fixed type/drawout ordering for type NWDF1-AM customers Energy-storing signal Optional Fixed type/drawout communication module NWDF1- ordering for type customers Optional Voltage conversion module Fixed type/drawout ordering for...
  • Page 41 Implementation File No Version 20200730 NDT2920205 Date 4.2 Electrical Control Accessories 4.2.1 Closed electromagnet is mainly composed of coil, iron core component and electronic parts. In the condition of mechanism energy storage, as long as the closed electromagnet is energized, the circuit breaker can be closed. ◆...
  • Page 42 File No.:NDT2920202 File Version:4 3) There is the control circuit inside to ensure the long-time energizing, which shall be >200ms. Do not connect to the auxiliary switch contact of the circuit breaker in series. Power-on time >200ms. ◆ Technical Parameters of Shunt Release Power Consumption Table of Shunt Release Instantaneous power Rated insulation...
  • Page 43 File No.:NDT2920202 File Version:4 4.2.4 Motor operating mechanism The circuit breaker can only be closed after the motor operating mechanism make the circuit breaker to store energy in advance. ◆ Operation features 1) If the rated supply voltage of the motor operating mechanism is between 85%~110%, energy storage of the circuit breaker can be made in place.
  • Page 44 File No.:NDT2920202 File Version:4 The undervoltage delayed release sets the delay time of the release action through toggling the toggle switch on the undervoltage delayed device. The delay time is set as 0s, 1 s, 3 s, 5 s or instantaneous as required.
  • Page 45 File No.:NDT2920202 File Version:4 Rated insulation voltage Operating power Rated operational voltage (Ue) (Ui) NDW3-1600 NDW3-2500, 4000, 6300,7500 AC220V(AC230V) 50Hz/60Hz 0.8VA 400V AC380V(AC400V) 50Hz/60Hz 0.8VA 4.2.7 Remote reset electromagnet This accessory is installed in the controller base. In case of fault tripping and troubleshooting of controller, the remote reset electromagnet can reset the reset button of the circuit breaker for the normal closing/opening operation of the circuit breaker...
  • Page 46 File No.:NDT2920202 File Version:4 ■ Four groups switch Four normally opened ■ Four groups switch ■ Four normally opened and four normally closed ■ Six groups switch ■ Four groups switch and four normally closed Auxiliary contact form ■Four normally opened ■...
  • Page 47 File No.:NDT2920202 File Version:4 2# and 3# in the separation position will be connected, 5# and 6# in the test position, and 8# and 9# in the off position will also be connected. See the table below for technical parameters. Table of Technical Parameters Applicable frame size NDW3-1600, NDW3-2500, NDW3-4000, NDW3-6300, NDW3-7500...
  • Page 48 File No.:NDT2920202 File Version:4 4.4 Related Accessories of Controller 4.4.1 External N-pole transformer  Ground type The 3P+N system can be formed by using a 3P circuit breaker and an external N-phase transformer. It can measure data on the grounding cable via an external N-pole transformer to realize the ground protection of the differential type (T) or the ground current type (W).
  • Page 49 File No.:NDT2920202 File Version:4 ★ See the figure below for outline and installation dimensions of the rectangular transformer. ★ Pay attention to the direction for use: The busbar current flows from the P1 terminal and flows out from the P2 terminal. ★...
  • Page 50 File No.:NDT2920202 File Version:4 2） Flexible transformer ★ Flexible transformer code Transformer code Soft cable circumference Applicable current range 200A-800A 280mm 370mm 1000A-2000A 450mm 1000A-7500A ★ See the figure below for outline and installation dimensions of the flexible transformer. ★ Pay attention to the direction for use: The inlet wire direction is shown in the figure. ★...
  • Page 51 File No.:NDT2920202 File Version:4 4.4.2 External leakage transformer ◆ When the grounding protection mode is aftercurrent protection (E) type, an external current leakage transformer is required. The controller judges action via the output signal of the external current leakage transformer. ◆...
  • Page 52 File No.:NDT2920202 File Version:4 4.4.3 Power supply module NWDF1 ◆ Role: As the power source of relay module NWDF1-RM, the output voltage is DC24V; ◆ Type: See the table below NWDF1-P1 NWDF1-P3 NWDF1-P5 Nominal 400/230VAC 220/110VDC 24 VDC voltage Allowable 180VAC-430VAC 85VDC-265VDC 12-36 VDC...
  • Page 53 File No.:NDT2920202 File Version:4 ◆ See the figure below for outline and installation dimensions. Outline and Installation Dimension Outline and Installation Dimension Diagram Diagram of Power Supply Module of Power Supply Module NWDF1-P3/P5 NWDF1-P1 4.4.4 ◆ Function: Signal unit of controller is commonly used in fault alarm or indication, etc. When the circuit breaker is opened, closed or when the load capacity is larger, the control should be carried out after conversion through this module.
  • Page 54 File No.:NDT2920202 File Version:4 4.4.5 Communication adapters NWDF1-MD, NWDF1-MP, NWDF1-ME and NWDF1-MC  Type of communication adapters: NWDF1-MD, NWDF1-MP, NWDF1-ME and NWDF1-MC. It connects with the intelligent communication products with our ModBus RTU standard protocol interface to realize conversion of different protocols, thus making the intelligent communication products to achieve the remote communication, remote regulating, remote control and remote sensing functions on DeviceNet and ProfiBus DP.
  • Page 55 File No.:NDT2920202 File Version:4 ◆ See the figure below for outline and installation dimensions. NWDF1-MD NWDF1-MP Outline and Outline and 此处安装导轨 Install the guide rail here 单位：mm Unit: mm NWDF1-ME Outline and Installation Dimension Diagram 第 55 页 共 149 页 Internal &...
  • Page 56 File No.:NDT2920202 File Version:4 NWDF1-MC Outline and Installation Dimension Diagram 第 56 页 共 149 页 Internal & confidential file...
  • Page 57 File No.:NDT2920202 File Version:4 4.4.6 Remote intelligent I/O module NWDF1-C8/S12/SC64/SCM423  The remote intelligent I/O module is a simple, practical and reliable monitoring communication module(installed with a 35mm standard guide rail), which enables the remote communication, remote control and remote measurement of the system via the standard RS485 interface and ModBus-RTU protocol.
  • Page 58 File No.:NDT2920202 File Version:4 Isolation voltage 1000Vrms Maximum number of modules for a single Protection class IP20 Dimensions 91.6 x 54 x 58.5mm Installation Installed with two 35mm standard guide rails mode 第 58 页 共 149 页 Internal & confidential file...
  • Page 59 File No.:NDT2920202 File Version:4  See the figure below for outline and installation dimensions. Outline and Installation Dimension Diagram of Remote Intelligent I/O Module 4.4.7 6-channel programmable output module NWDF1-C6  For the NDWF1-C6 programmable output module (installed with a 35mm standard guide rail), for the communication protocol details, see the NWDF1-C6 6-channel programmable expansion output module part in the NDT2920191 “Operation Manual of NWDF1 Series Frame Electrical Accessories”.
  • Page 60 File No.:NDT2920202 File Version:4 Function Table of Wiring Mode and Terminal Definition Terminal Input/outpu Model Connection position Remarks code Power-supply Power-supply AC220V input, AC230V Input AC220V input end including neutral wire, live wire Input/outpu RS485 communication ports, RS485 communication do not reverse AB ports Relay output 1 NC Output...
  • Page 61 File No.:NDT2920202 File Version:4 Relay output 6 public Input Relay output 6 public contacts contacts Programmable Output Module Contact Type Table Non-locking contact In case the alarm triggered by fault isn't eliminated, the contact holds action Locking contact The contact holds action until reset (reset menu) Time delay contact The contact holds action within the adjustable time delay or is reset (reset menu) Time Setting Table of the Time Delayed Contact...
  • Page 62 File No.:NDT2920202 File Version:4 Outline and Installation Dimension Diagram of 6- channel Programmable Output Module 4.4.9 Accessory monitoring unit NWDF1-AM  After installed with the accessory monitoring unit, the circuit breaker can perform the online monitoring of coil break for the shunt release, closing electromagnet, undervoltage release and energy storage motor, to ensure normal operation of the circuit breaker.
  • Page 63 File No.:NDT2920202 File Version:4  Function Table of Wiring Mode and Terminal Definition Model Terminal code Connection position Port notes Remarks Without positive Power supply 230V and negative Power supply polarities The terminal code is consistent with RS485 A Communication port that of the communication module...
  • Page 64 File No.:NDT2920202 File Version:4 number of the body secondary terminal The terminal code is the definition Closing+ Closing coil break monitoring number of the body secondary terminal The terminal code is the definition Closing- Closing coil break monitoring number of the body secondary terminal The terminal...
  • Page 65 File No.:NDT2920202 File Version:4 NWDF1-AMoutline and Installation Dimension Diagram 4.4.10 Energy-storing signal communication module NWDF1-S1  Energy-storing signal communication module components can obtain the “Energy storage” or “Energy release” status information of the electric operating mechanism of the circuit breaker via the upper computer. Outline and installation dimensions are the same with the outline and installation dimension diagram of the remote intelligent I/O module.
  • Page 66 File No.:NDT2920202 File Version:4 4.5 Safety Accessories 4.5.1 Phase partition Divided into fixed type and drawout type, the phase partition is installed in the groove between all the phase bus bars, used to increase the insulation strength between phases of the main circuit so as to prevent the short circuit in case of the insulation breakdown and improve the power reliability.
  • Page 67 File No.:NDT2920202 File Version:4 Fixed special Phase partition Inlet and outlet bracket plate partition NDW3-4000HU Note: NDW3-4000HU inlet and outlet spacers are installed with the words N, A, B and C when they are installed. 4.5.2 Counter Counter is used to record the number of the "close-open" operation of the circuit breaker.
  • Page 68 File No.:NDT2920202 File Version:4 The IP54 transparent cover is an accessory that can be installed on the cabinet door and can increase the protection level to IP54. The protective cover is assembled with a special door frame. If you choose this accessory, you do not need to choose a conventional door frame.
  • Page 69 File No.:NDT2920202 File Version:4 b. NDW3-2500/4000/6300/7500IP54 transparent cover dimensions 4.6 Lock and Interlocking Device 4.6.1 Off-position key lock (on the circuit breaker)  This key lock is locked on the manually disconnected position of the circuit breaker. When the key is anticlockwise locked and pulled out, The circuit breaker cannot carry out closed operation, so as to prevent irregular operation.
  • Page 70 File No.:NDT2920202 File Version:4 Mounting plate of the circuit Mask centerline of the Mounting plate of the circuit breaker cabinet circuit breaker breaker cabinet Fixed type Drawer seat off position Mounting plate of the Mounting plate of the Mask centerline of the Drawer seat connection circuit breaker cabinet circuit breaker cabinet...
  • Page 71 File No.:NDT2920202 File Version:4 NDW3-6300 NDW3-7500 4.6.2 Safety lock When the handle of safety lock is put the padlock, the product can be locked in opening state, and the product cannot be closed. Only when all padlocks are unlocked can the product be closed. The proper diameter for anchor beam is 5mm when the padlocks range from one to three, or the proper diameter for anchor beam is 5mm when the padlocks range from one to two.
  • Page 72 File No.:NDT2920202 File Version:4 Drawer seat off position Drawer seat connection Mounting plate of the Mounting plate of the Mask centerline of the position circuit breaker cabinet circuit breaker cabinet circuit breaker Drawout type Unit: mm Model Fixed Drawout Fixed Drawout Fixed Drawout...
  • Page 73 File No.:NDT2920202 File Version:4 4.7.1 Mechanical interlocking  Mechanical interlocking mechanism can be used for interlocking of the drawout circuit breaker and the fixed circuit breaker;  Interlocking mechanism shall be installed by users. First, demount the nut for connecting the rear part of the interlocking device with four combination screws;...
  • Page 74 File No.:NDT2920202 File Version:4  Interlocking pattern selection is shown in the table below Selection Number of circuit Code Type mode breakers Two sets of cables, one for SR11 closing and one for opening Three sets of cables, one for SR12 closing and two for opening Three sets of cables, two for...
  • Page 75 File No.:NDT2920202 File Version:4 Usage mode is shown in the figure below, while interlocking action state is shown in Table 64. Status Table of Three Circuit Breakers (One for Closing and Two for Opening) Status table of three circuit breakers (two for closing and one for opening) Shunt Open Shunt...
  • Page 76 File No.:NDT2920202 File Version:4 Adjustment schematic diagram: Adjusted to the hole position II 2) Three interlocking cables Installation schematic diagram: 2m (max) 2m (max) Circuit breaker 3 Circuit breaker 1 Circuit breaker 2 第 76 页 共 149 页 Internal & confidential file...
  • Page 77 File No.:NDT2920202 File Version:4 Adjustment schematic diagram: One for closing and two for opening Adjusted to the hole position II Adjustment schematic diagram: Two for closing and one for opening Adjusted to the hole position I 第 77 页 共 149 页 Internal &...
  • Page 78 File No.:NDT2920202 File Version:4 3) Two interlocking hard rods Installation schematic diagram: (One for closing and one for opening) Circuit breaker 1 Cabinet Mounting hole of the Cabinet circuit breaker Mounting hole of the circuit breaker 900 (max) Circuit breaker 2 Mounting hole of the circuit breaker 第...
  • Page 79 File No.:NDT2920202 File Version:4 4) Three interlocking hard rods Installation schematic diagram: (One for closing and two for opening) Circuit breaker 1 Mounting hole of the circuit breaker Mounting hole of Cabinet the circuit breaker Cabinet 600 (max) Circuit breaker 2 Mounting hole of the circuit breaker Mounting hole of...
  • Page 80 File No.:NDT2920202 File Version:4 Adjustment schematic diagram: Adjusted to the hole position II 4.7.2 Power Automatic Transfer Switches Four-position switch state Automatic operation ★ Automatic switching; ★ Monitor the "common" power supply and ★ Forced with "common" power supply; automatic switching; ★...
  • Page 81 File No.:NDT2920202 File Version:4 ◆ See the figure below for outline and installation dimensions Note: Due to the Power Automatic Transfer Switches control device has overvoltage and undervoltage protection functions, in order to guarantee the consistency and reliability of the system protection, the air circuit breaker used for power supply automatic switching control device can't install undervoltage release, and the Power Automatic Transfer Switches control device and the mechanical interlocking (two interlocking) shall be used together.
  • Page 82 File No.:NDT2920202 File Version:4 4.8 Communication System The controller with the communication function can realize four remotes data transmission function, i.e., “remote metering, remote control, remote adjustment and remote communication”, through the communication port according to the stipulated agreement requirements. Communication port output uses photoelectric isolation, and is suitable for strong electrical interference environment.
  • Page 83 File No.:NDT2920202 File Version:4 Note: 1. The red line represents the RS485 communication line, which is connected from the communication interface of controller; the black line represents the power supply line; the blue line represents the signal output line of the circuit breaker secondary terminal to output the circuit breaker status or control signal.
  • Page 84 1 ......7 Product overview 1.1 NDW3 product series ......................7 1.2 Rated current of NDW3 series of circuit breaker ..............7 1.3 Breaking capacity and short-time withstand current of NDW3 circuit breaker ....7 1.4 Structure Design .........................7 1.5 Product Features .........................9 Conforming Standards and Certification ..............
  • Page 85 File No.:NDT2920202 File Version:4 5.1 Working Environment ...................... 86 5.2 Installation conditions ..................... 89 5.3 Main Circuit Wiring of the Circuit Breaker ............... 89 5.4 The power loss of the incoming and outgoing lines of the circuit breaker (ambient temperature +40°C) ............................
  • Page 86 File No.:NDT2920202 File Version:4 Scope of application The NDW3 air circuit breaker (hereinafter referred to as circuit breaker) can be applied to the distribution network with AC of 50 Hz / 60 Hz, rated current of 200A～7500A, rated insulation voltage of 1140V, rated operational voltage of AC220/230/240V, AC380/400/415V, AC440/480V, AC660/690V, AC800V, AC1000 and AC1140V AC1140V、AC1380V、AC1500Vfor distribution of electrical energy and protecting circuit and power equipment from overload, under-voltage, short circuit, single phase grounding and harm...
  • Page 87 File No.:NDT2920202 File Version:4 2000A 2000A 2000A 2000A 2000A 2000A 2000A 2500A 2500A 2500A 2500A 2500A 2500A 2500A 3200A 3200A 3200A 3200A 3200A 3120A 2920A 3600A 3600A 3600 3560A 3400A 3120A 2920A 4000A 4000A 3800A 3560A 3400A 3120A 2920A 4000A 4000A 4000A 4000A...
  • Page 88 File No.:NDT2920202 File Version:4 Voltage and breaking capacity high altitude derating table 2 Altitude 2000 3000 4000 5000 Impulse withstand voltage Uimp (kV) Rated insulation voltage Ui (V) 1250 1250 1140 1000 Rated insulation voltage(NDW3-7500) Ui (V) 1000 1000 Rated working voltage 1140 1140 1140...
  • Page 89 File No.:NDT2920202 File Version:4 ◆ Radio wave ◆ Electrostatic discharge 2) The circuit breaker has passed the electromagnetic compatibility (EMC) test stipulated by following standards ◆ GB/T 14048.2-2020 Low-voltage Switchgear and Control Equipment - Part 2: Circuit Breaker - Appendix F ◆...
  • Page 90 File No.:NDT2920202 File Version:4 800~1600 80×5 2000 80×10 4000 2500 80×10 3200, 4000 100×10 4000 100×10 6300 5000, 6300 100×10 4000 100×10 7500 5000、6300 100×10 7500 120×10 Note: 1. The table indicates the copper bar specifications adopted when the circuit breaker is under the ambient temperature of +40℃...
  • Page 91 File No.:NDT2920202 File Version:4 Chapter 6 Outline and Installation Dimensions 6.1 NDW3-1600 ..................................92 6.2 NDW3-2500 ..................................90 6.3 NDW3-4000 ..................................96 6.4 NDW3-6300 ..................................108 6.5 NDW3-7500 ..................................108 6.6 The Circuit Breaker Cabinet Door Open Hole and the Installation Pitch ........... 108 6.7 Circuit Breaker Installation Notes ..........................
  • Page 92 File No.:NDT2920202 File Version:4 Outline and Installation Dimensions 6.1 NDW3-1600 NDW3-1600 fixed type (unit: mm) Dimensions Fixed Details Horizontal Wiring Detail Vertical Wiring Detail Size of busbar a Rated current (mm) Note: For the 3-pole circuit breaker, X and Y are the symmetric 200A, 400A, 630A 800A, 1000A, 1250A, 1600A axes of the front panel;...
  • Page 93 File No.:NDT2920202 File Version:4 Mixed Wiring (Upper Horizontal, Lower Vertical) Detail Mixed Wiring (Upper Vertical, Lower Horizontal) Detail Size of busbar a Rated current Note: For the 3-pole circuit breaker, X and Y are the (mm) symmetric axes of the front panel; 200A, 400A, 630A 800A, 1000A, 1250A, 1600A 第...
  • Page 94 File No.:NDT2920202 File Version:4 NDW3-1600 drawout type (unit: mm) Dimensions Fixed Details Horizontal Wiring Detail Vertical Wiring Detail Size of busbar a Note: For the 3-pole circuit breaker, X and Y are the symmetric Rated current (mm) axes of the front panel; 200A, 400A, 630A 800A, 1000A, 1250A, 1600A 第...
  • Page 95 File No.:NDT2920202 File Version:4 Mixed Wiring (Upper Horizontal, Lower Vertical) Detail Mixed Wiring (Upper Vertical, Lower Horizontal) Detail Size of busbar a Rated current (mm) Note: For the 3-pole circuit breaker, X and Y are the symmetric 200A, 400A, 630A axes of the front panel;...
  • Page 96 File No.:NDT2920202 File Version:4 6.2 NDW3-2500 NDW3-2500 fixed type (unit: mm) Dimensions Fixed Details Horizontal Wiring Detail Vertical Wiring Detail Size of busbar a Rated current (mm) Note: For the circuit breaker, X and Y are the symmetric 630A, 800A, 1000A, axes of the front cover;...
  • Page 97 File No.:NDT2920202 File Version:4 Mixed Wiring (Upper Horizontal, Lower Vertical) Detail Mixed Wiring (Upper Vertical, Lower Horizontal) Detail Horizontal extension wiring Detail Note: For the circuit breaker, X and Y are the Size of busbar a Rated current symmetric axes of the front cover; (mm) 630A, 800A, 1000A, 1250A 1600A, 2000A, 2500A...
  • Page 98 File No.:NDT2920202 File Version:4 Vertical extension wiring Detail Mixed Wiring (Upper Horizontal, Lower Vertical) Detail Mixed Wiring (Upper Vertical, Lower Horizontal) Detail Size of busbar a Note: For the circuit breaker, X and Y are the symmetric Rated current (mm) axes of the front cover;...
  • Page 99 File No.:NDT2920202 File Version:4 NDW3-2500 drawout type Dimensions Fixed Details Horizontal Wiring Detail Vertical Wiring Detail Size of busbar a Rated current Note: For the circuit breaker, X and Y are the (mm) symmetric axes of the front cover; 630A, 800A, 1000A, 1250A 1600A, 2000A, 2500A 第...
  • Page 100 File No.:NDT2920202 File Version:4 Mixed Wiring (Upper Horizontal, Lower Vertical) Detail Mixed Wiring (Upper Vertical, Lower Horizontal) Detail Horizontal extension wiring Detail Size of busbar a Note: For the circuit breaker, X and Y are the symmetric Rated current (mm) axes of the front cover;...
  • Page 101 File No.:NDT2920202 File Version:4 Vertical extension wiring Detail Mixed Wiring (Upper Horizontal, Lower Vertical) Detail Mixed Wiring (Upper Vertical, Lower Horizontal) Detail Note: For the circuit breaker, X and Y are the symmetric Size of busbar a axes of the front cover; Rated current (mm) 630A, 800A, 1000A, 1250A...
  • Page 102 File No.:NDT2920202 File Version:4 6.3 NDW3-4000 NDW3-4000 fixed type (unit: mm) Dimensions Fixed Details 800A-2500A horizontal and vertical wiring Detail Note: For the circuit breaker, X and Y are the symmetric axes of the front cover; 第 102 页 共 149 页 Internal &...
  • Page 103 File No.:NDT2920202 File Version:4 1600A-2500A horizontal and vertical extended wiring Detail 3200A-4000A horizontal wiring Detail Note: X and Y axes are the symmetric axes of the front mask 第 103 页 共 149 页 Internal & confidential file...
  • Page 104 File No.:NDT2920202 File Version:4 3200A-4000A vertical wiring Detail 3200A-4000A horizontal extended and vertical extended wiring Detail Note: X and Y axes are the symmetric axes of the front mask 第 104 页 共 149 页 Internal & confidential file...
  • Page 105 File No.:NDT2920202 File Version:4 NDW3-4000 drawout type Dimensions Fixed Details 800A-2500A horizontal and vertical wiring Detail Note: For the circuit breaker, X and Y are the symmetric axes of the front cover; 第 105 页 共 149 页 Internal & confidential file...
  • Page 106 File No.:NDT2920202 File Version:4 1600A-2500A horizontal and vertical extended wiring Detail 3200A-4000A horizontal wiring Detail Note: X and Y axes are the symmetric axes of the front mask 第 106 页 共 149 页 Internal & confidential file...
  • Page 107 File No.:NDT2920202 File Version:4 3200A-4000A vertical wiring Detail 3200A-4000 horizontal and vertical extended wiring Detail 第 107 页 共 149 页 Internal & confidential file...
  • Page 108 File No.:NDT2920202 File Version:4 6.4 NDW3-6300 NDW3-6300 fixed type (unit: mm) Dimensions Fixed Details 4000A-5000A horizontal, vertical, mixed wiring Horizontal Wiring Detail Vertical Wiring Detail Mixed Wiring (Upper Horizontal, Lower Vertical) Detail Note: For the circuit breaker, X and Y are the symmetric axes of the front cover; 第...
  • Page 109 File No.:NDT2920202 File Version:4 Mixed Wiring (Upper Vertical, Lower Horizontal) Detail 4000A-5000A horizontal extended, vertical extended, mixed extended wiring Horizontal extension wiring Detail Vertical extension wiring Detail Mixed Wiring (Upper Horizontal, Lower Vertical) Detail Note: For the circuit breaker, X and Y are the symmetric axes of the front cover; 第...
  • Page 110 File No.:NDT2920202 File Version:4 Mixed Wiring (Upper Vertical, Lower Horizontal) Detail 6300A vertical wiring Detail 6300A vertical extended wiring Detail Note: For the circuit breaker, X and Y are the symmetric axes of the front cover; 第 110 页 共 149 页 Internal &...
  • Page 111 File No.:NDT2920202 File Version:4 NDW3-6300 drawout type Dimensions Fixed Details 4000A-5000A horizontal, vertical, mixed wiring Horizontal Wiring Detail Vertical Wiring Detail Note: For the circuit breaker, X and Y are the symmetric axes of the front cover; 第 111 页 共 149 页 Internal &...
  • Page 112 File No.:NDT2920202 File Version:4 Mixed Wiring (Upper Horizontal, Lower Vertical) Detail Mixed Wiring (Upper Vertical, Lower Horizontal) Detail 4000A-5000A horizontal extended, vertical extended, mixed extended wiring Horizontal extension wiring Detail Vertical extension wiring Detail Note: For the circuit breaker, X and Y are the symmetric axes of the front cover; 第...
  • Page 113 File No.:NDT2920202 File Version:4 Mixed Wiring (Upper Horizontal, Lower Vertical) Detail Mixed Wiring (Upper Vertical, Lower Horizontal) Detail 6300A vertical wiring Detail 6300A extended vertical wiring Detail Note: For the circuit breaker, X and Y are the symmetric axes of the front cover; 第...
  • Page 114 File No.:NDT2920202 File Version:4 6.5 NDW3-7500 NDW3-7500 fixed type (unit: mm) Dimensions Fixed Details 4000A-5000A horizontal, vertical, mixed wiring Horizontal Wiring Detail Vertical Wiring Detail Mixed Wiring (Upper Horizontal, Lower Vertical) Detail Note: For the circuit breaker, X and Y are the symmetric axes of the front cover; 第...
  • Page 115 File No.:NDT2920202 File Version:4 Mixed Wiring (Upper Vertical, Lower Horizontal) Detail 4000A-5000A horizontal extended, vertical extended, mixed extended wiring Horizontal extension wiring Detail Vertical extension wiring Detail Mixed Wiring (Upper Horizontal, Lower Vertical) Detail Note: For the circuit breaker, X and Y are the symmetric axes of the front cover; 第...
  • Page 116 File No.:NDT2920202 File Version:4 Mixed Wiring (Upper Vertical, Lower Horizontal) Detail 6300A vertical wiring Detail 6300A vertical extended wiring Detail 7500A vertical extended wiring Detail Note: For the circuit breaker, X and Y are the symmetric axes of the front cover; 第...
  • Page 117 File No.:NDT2920202 File Version:4 NDW3-7500 drawout type Dimensions Fixed Details 4000A-5000A horizontal, vertical, mixed wiring Horizontal Wiring Detail Vertical Wiring Detail Note: For the circuit breaker, X and Y are the symmetric axes of the front cover; 第 117 页 共 149 页 Internal &...
  • Page 118 File No.:NDT2920202 File Version:4 Mixed Wiring (Upper Horizontal, Lower Vertical) Detail Mixed Wiring (Upper Vertical, Lower Horizontal) Detail 4000A-5000A horizontal extended, vertical extended, mixed extended wiring Horizontal extension wiring Detail Vertical extension wiring Detail Note: For the circuit breaker, X and Y are the symmetric axes of the front cover; 第...
  • Page 119 File No.:NDT2920202 File Version:4 Mixed Wiring (Upper Horizontal, Lower Vertical) Detail Mixed Wiring (Upper Vertical, Lower Horizontal) Detail 6300A vertical wiring Detail 6300A extended vertical wiring Detail Note: For the circuit breaker, X and Y are the symmetric axes of the front cover; 第...
  • Page 120 File No.:NDT2920202 File Version:4 6.6 The Circuit Breaker Cabinet Door Open Hole and the Installation Pitch (unit: mm) The Circuit Breaker Cabinet door open hole and installation pitch Whether the IP54 transparent cover is optional, the opening size and installation hole distance of the cabinet door are different, and the holes are opened according to the following dimensions according to different situations a.
  • Page 121 File No.:NDT2920202 File Version:4 Hole dimensions of NDW3-4000 door frame Mask center Mask center Bottom of circuit breaker Bottom of circuit breaker Fixed type Drawout type Hole dimensions of NDW3-6300 door frame Mask center Mask center Bottom of circuit breaker Bottom of circuit breaker Drawout type Fixed type...
  • Page 122 File No.:NDT2920202 File Version:4 b. Cabinet door opening size with IP54 transparent cover Fixed Type Drawout Type 6.7 Circuit Breaker Installation Notes To ensure your safety and the safety of electrical equipment, before put the circuit breaker into operation, users must: ★...
  • Page 123 File No.:NDT2920202 File Version:4 ★ Measure the insulation resistance of the circuit breaker with a 1000V megohmmeter before installation of the circuit breaker. When the surrounding medium temperature is 20℃±5℃, the relative humidity 50%-70% should not be less than 20 mge; otherwise it needs to be dried, and it can be used until the insulation resistance meets the requirements.
  • Page 124 File No.:NDT2920202 File Version:4 When users install the circuit breaker into the cabinet, the safe distance between the circuit breaker and the cabinet is shown in the figure below, and the installation dimensions are shown in the table below. Drawout circuit breaker Fixed circuit breaker Unit: mm To the metallic body...
  • Page 125 File No.:NDT2920202 File Version:4 7.4 Wiring Diagram of the Power Automatic Transfer Switches Device (ATS)............135 第 125 页 共 149 页 Internal & confidential file...
  • Page 126 File No.:NDT2920202 File Version:4 Electrical Wiring Diagram 7.1 NDW3-1600 Electrical Wiring Diagram and Terminal Number Definition NDW3-1600 Full-function Wiring Diagram 第 126 页 共 149 页 Internal & confidential file...
  • Page 127 File No.:NDT2920202 File Version:4 Figure 1: NDW3-1600 Auxiliary Wiring Diagram Four-normally-open and four-normally closed NDW3-1600 Breaking capacity of Auxiliary DC-12 0.3A/DC250V AC-12 10A/AC250V Breaking capacity DC-13 0.2A/DC220V AC-15 0.29A/AC400V Figure 2: Input/Output Interface of NDW3-1600 Controller 第 127 页 共 149 页 Internal &...
  • Page 128 File No.:NDT2920202 File Version:4 Definition Table of NDW3-1600 Terminal Number 第 128 页 共 149 页 Internal & confidential file...
  • Page 129 File No.:NDT2920202 File Version:4 SB1 - Shunt button (to be prepared by users) SB2 - Close button (to be prepared by users) SB3 - Undervoltage disconnection button (to be prepared by users) SB4 - Remote reset button (to be prepared by users) SA1 - Motor travel switch SA2 - Closing ready travel switch SA4 - Fault tripping travel switch...
  • Page 130 File No.:NDT2920202 File Version:4 7.2 NDW3-2500/4000/6300/7500Electric Wiring Diagram and Terminal Number Definition NDW3-2500, NDW3-6300,NDW3-7500 full-function wiring diagram 第 130 页 共 149 页 Internal & confidential file...
  • Page 131 File No.:NDT2920202 File Version:4 Figure 1: NDW3-2500/4000/6300/7500 Auxiliary Wiring Diagram Four normally opened and Six normally opened and six Four-group conversion Six-group conversion four normally closed normally closed Four normally opened and four normally closed (for NDW3-4000) NDW3-2500/6300 Breaking capacity of Auxiliary Product frame NDW3-2500/6300/7500 NDW3-4000...
  • Page 132 File No.:NDT2920202 File Version:4 NDW3-2500, NDW3-4000, NDW3-6300,NDW3-7500 terminal number definition table 第 132 页 共 149 页 Internal & confidential file...
  • Page 133 File No.:NDT2920202 File Version:4 SB1 - Shunt button (to be prepared by users) SB2 - Close button (to be prepared by users) SB3 - Undervoltage disconnection button (to be prepared by users) SB4 - Remote reset button (to be prepared by users) SA1 - Motor travel switch SA2 - Closing ready travel switch SA4 - Fault tripping travel switch...
  • Page 134 File No.:NDT2920202 File Version:4 7.3 Electrical wiring diagram of voltage-check closing device Power Power Source Source Secondary Terminals of Circuit Breaker Check-for-voltage Closing Device Check-for-voltage Wiring Harness (Optional) 1) 6, 7 - The voltage-check closing device needs to monitor the status of the circuit breaker or disconnect the contact output function with the circuit breaker.
  • Page 135 File No.:NDT2920202 File Version:4 7.4 Wiring Diagram of the Power Automatic Transfer Switches Device (ATS) 7.4.1 Wiring Diagram of NDW3-1600 Power Automatic Transfer Switches Device 第 135 页 共 149 页 Internal & confidential file...
  • Page 136 File No.:NDT2920202 File Version:4 Note: 1. The dotted line part represents the wire connected by the user, that is, in general, the user is required only to connect the N, A, B and C wires of common power supply and standby power supply to the switching device. The indicator lamps for fault, closing and energy storage in this wiring diagram are the indicator lamps on the Automatic Transfer Switches panel of power supply, and the fuse is inside the device.
  • Page 137 File No.:NDT2920202 File Version:4 7.4.2 Wiring diagram of the Power Automatic Transfer Switches device of NDW3-2500 & NDW3-4000 & NDW3-6300&NDW3-7500 第 137 页 共 149 页 Internal & confidential file...
  • Page 138 File No.:NDT2920202 File Version:4 Note: 1. The dotted line part represents the wire connected by the user, that is, in general, the user is required only to connect the N, A, B and C wires of common power supply and standby power supply to the switching device. The indicator lamps for fault, closing and energy storage in this wiring diagram are the indicator lamps on the Automatic Transfer Switches panel of power supply, and the fuse is inside the device.
  • Page 139 1 ......7 Product overview 1.1 NDW3 product series ......................7 1.2 Rated current of NDW3 series of circuit breaker ............... 7 1.3 Breaking capacity and short-time withstand current of NDW3 circuit breaker ....7 1.4 Structure Design ......................... 7 1.5 Product Features ........................
  • Page 140 File No.:NDT2920202 File Version:4 5.2 Installation conditions ...................... 89 5.3 Main Circuit Wiring of the Circuit Breaker................ 89 5.4 The power loss of the incoming and outgoing lines of the circuit breaker (ambient temperature +40°C) Chapter 6 Outline and Installation Dimensions ..............91 6 .......92 Outline and Installation Dimensions 6.1 NDW3-1600 ........................
  • Page 141 File No.:NDT2920202 File Version:4 Circuit Breaker Model Explanation and Encoding Rules ND W 3- □ □/□ □/□/□ □ /□ □ □/□ □ □ □/□/□/□/□/□/□ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Name Specification, type code Description...
  • Page 142 File No.:NDT2920202 File Version:4 KM3-NWK21/NWK31 (DC220V), controllers while NWK21 KM4-NWK21/NWK31 (DC110V), and NWK22 are applicable KM5-NWK21/NWK31 (DC24V) to the rest KY1-NWK22/NWK32 (AC380V/AC400V), KY2-NWK22/NWK32 (AC220V/AC230V), KY3-NWK22/NWK32 (DC220V), KY4-NWK22/NWK32 (DC110V), KY5-NWK22/NWK32 (DC24V) 第 142 页 共 149 页 Internal & confidential file...
  • Page 143 File No.:NDT2920202 File Version:4 Protection type: Not-standard - conventional type, V - voltage measurement and protection, P - harmonic measurement and protection Communication function: H (Modbus protocol) MP (Profibus-DP protocol) MD (Devicenet protocol) Signal unit: S1- 4DO S2- 3DO, 1DI S3-2DO, 2DI 1.
  • Page 144 File No.:NDT2920202 File Version:4 A4-Four-group conversion, A6-Six-group conversion, A44-Four normally Applicable to NDW3-1600 opened and four normally closed Auxiliary contact A4-Four-group conversion, A6-Six-group conversion Applicable to A44-Four normally opened and four normally closed, NDW3-2500,NDW3-4000, A66 -Six normally opened and six normally closed NDW3-6300,NDW3-7500 BX - Closing ready signal output unit JS - Counter functional unit...
  • Page 145 File No.:NDT2920202 File Version:4 Continued: Interlocking Piece Model Explanation and Encoding Rules SF11 - key lock device (one lock and one key), SF21 - key lock device (two locks and one 1. Select one from five key locks; key), 2. The NDWPG-1600 frame can Key lock SF31 - key lock device (three locks and one key), SF32 - key lock device (three locks and be interlocked with other frames...
  • Page 146 File No.:NDT2920202 File Version:4 Circuit Breaker Ordering Notes (Please fill in numbers in_____, and check √ in □. Related contents can be found in the Manual) Number of units User unit Date of ordering: ordered: □ NDW3-1600 □ NDW3-2500 □ NDW3-4000 □...
  • Page 147 File No.:NDT2920202 File Version:4 NDW3- □ KM-NWK21 (digital screen) □ KY-NWK22 (LCD) 2500/4000/630 0/7500 □ 1(AC380V/400V) □ 2(AC220V/AC230V) □3(DC220V) □ 4(DC110V) □ 5(DC24V) Controller voltage □ Conventional type (standard configuration) □ V - Voltage measurement and protection type □ P - Harmonic measurement and protection type Note: 1.P is only available for NWK22/32 LCD type, and neither V nor P can be selected Protection type...
  • Page 148 File No.:NDT2920202 File Version:4 Is there any wiring harness: □ 0 (no) □ 1 (yes) Voltage-check closing device □A4-Four-group switching □ A6-Six-group switching NDW3-1600 □ A44-Four normally opened and four normally closed □A4-Four-group switching □ A6-Six-group switching Auxiliary contact NDW3- □...
  • Page 149 File No.:NDT2920202 File Version:4 □ SR11 - Two groups, one for closing and one for □ SR12 - Three groups, one for opening Note: SR21 and Cable type closing and two for opening SR12 are only □ SR21 - Three groups, two for closing and one for Mechanical suitable for NDW3- opening...

This manual is also suitable for:

Ndw3-1600Ndw3-2500Ndw3-4000Ndw3-6300Ndw3-7500