CHINT NA1-1000 Catalogue
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CHINT NA1-1000 Catalogue

Air circuit breaker
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2007-2008 Catalogue

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  • Page 1 2007-2008 Catalogue Air Circuit Breaker...
  • Page 2 2006. In the year of 2006, CHINT ranked 15th in the list of top 100 Companies released by Forbes, which were appraised from all private companies (both listed as public and not) in China.
  • Page 3 Zhejiang CHINT Electrics Co., Ltd, the business unit of CHINT for Low-voltage Electrical Products, is a nation- wide leader in power distribution and industrial control industry and is one of the core businesses of CHINT Group. The product lines cover low-voltage electrical products of circuit breakers, contactors, pushbuttons, switches, transformers, relays, capacitors, motor starters, etc.
  • Page 5 Air Circuit Breaker...
  • Page 6 NA1 Air Circuit Breaker Summary Main technical parameter Dimensions and connection Secondary circuit wiring Installation Recommendation for user’s connecting bus-bar Power loss A S curve Temperature compensation correction Coordination recommendations Selectivity protection Intelligent controller Accessories Regular malfunction and solutions Order sheet...
  • Page 7 Ukrain Russia South Africa Summary 5 basic frame sizes For your various requirements, the Air Circuit Breaker NA1 includes 5 basic frame sizes as followed. NA1-1000 NA1-2000 200A to 1000A 400A to 2000A NA1-3200, 4000 NA1-6300 2000A to 4000A 4000A to 6300A...
  • Page 8 Air Circuit Breaker . 2 .
  • Page 9 NA1 Air Circuit Breaker Drawout type Fixed type Intelligent controller Operating mechanism Auxiliary contact Locking-device Arcing chamber Secondary connecting part Wire-cable mechanical interlock Connecting-rod type mechanical interlock Shunt release Closing release Under-voltage release Motor-driven energy-storage mechanism Rotary handle Fixed plate .
  • Page 10 Air Circuit Breaker 1. General 1.1 Application scope NA1 series air circuit breaker is suitable for the circuit of AC 50Hz/60Hz with rated service voltage 400V, 690V and rated service current up to 6300A. It is mainly used to distribute electric energy and protect circuits and electric equipment against over-load, under-voltage, short-circuit and single-phase earthing fault.
  • Page 11 Rotary handle page 52 Rotate out Intelligent controller Rotate in page 32 4. Main technical parameter Type NA1-1000 Rated ultimate short circuit breaking capacity Icu=42kA 400V Rated service short circuit breaking capacity Ics=30kA 400V Icw=30kA 0.5s 400V Rated short-time withstand current...
  • Page 12 Air Circuit Breaker Type NA1-2000 Rated ultimate short circuit breaking capacity Icu=80kA 400V 50kA 690V Rated service short circuit breaking capacity Ics=50kA 400V 40kA 690V Rated short-time withstand current Icw=50kA 1s 400V 40kA 1s 690V Rated current In (A) 1000 1250 1600 2000...
  • Page 13 Type NA1-3200, NA1-4000 5000 Electric life Operation Non-maintenance 10,000 performance Mechanical life Maintenance 20,000 Connection pattern Horizontal, Vertical Drawout 3P/4P 94.5/117 Weight (kg) 52.5/65.5 Fixed 3P/4P Type NA1-6300 Rated ultimate short circuit breaking capacity Icu=120kA 400V 85kA 690V Rated service short circuit breaking capacity Ics=100kA 400V 75kA 690V Rated short-time withstand current...
  • Page 14 Air Circuit Breaker Dimensions and connection NA1-1000 Drawout type Boring dimension of doorcase 8×φ5 Installation panel Installation hole on right side n×φ13 200,400A n×φ10.5 630,800, NA1-1000 In(A) A(mm) n(3P/4P) H(mm) 1000A 200、400 4-9×13 800、1000 NA1-1000 Fixed-type Boring dimension of door case 8×φ5...
  • Page 15 NA1-2000 Drawout-type 45(Disconnected position) 448(4-pole) 353(3-pole) Φ11 2-11×17 Φ14 187.5 Right &outer side of breaker 375(3-pole) 470(4-pole) 8-Φ13 N-pole Horizontal Right & outer N-pole side of breaker a mm In A 11-Φ5 15.5 Installation panel 800~1600 32-Φ13 Opening hole on panel 2000 Vertical NA1-2000 Fixed-type...
  • Page 16 Air Circuit Breaker NA1-3200 Drawout-type 45(Disconnected position) 4-pole 528( A(mm) In A 413(3 -pole 2000~2500 3200 16-Φ13 N- pole 217.5 Horizontal 435(3 -pole 4-pole 550( Φ11 N-pole 2-11×17 Φ14 32-Φ13 Right&outer 11-Φ5 side of breaker 15.5 Installation panel Right &outer side of breaker Vertical Opening hole on panel NA1-3200 Fixed type...
  • Page 17 NA1-4000 Drawout-type (3-pole) 45(Disconnected position) 217.5 Φ11 12-Φ13 2-11×17 Φ14 Right&outer side of breaker 11-Φ5 197.5 197.5 15.5 Installation panel Right & outer Opening hole on panel side of breaker NA1-6300 (In＝4000A、5000A) Drawout-type 45(Disconnected position) 928(4 -pole ) 813( -pole ) 217.5 835( -pole )
  • Page 18 Air Circuit Breaker NA1-6300(In＝6300A) Drawout-type(3-pole) 45(Disconnected position) 217.5 Φ11 2-11×17 24-Φ15 Φ14 Right & outer side of breaker 11-Φ5 15.5 Installation panel Right & outer Opening hole on panel side of breaker . 1 2 .
  • Page 19 Secondary circuit wiring 6.1 NA1-1000 Motor-driven Emergency Motor-dri v en Motor-driven Main circuit Auxiliary contact Auxiliary contact Intelligent controller energy-storage break break make 27 29 Intelligent controller Power of control circuit DC24V Power module Fig 1: Standard type (M type)
  • Page 20 Air Circuit Breaker Emergenay Motor-dri v en Motor-driven Main circuit Auxiliary switch Intelligent controller break break make Profibus-DP ST-4 Power module ST-DP Device 18 19 Fault indicator 10 11 COM D11 DC24V SB1 SB2 ST201 16 17 Green Intelligent controller DC24V Power module...
  • Page 21 6.2 NA1-2000, 3200, 4000, 6300 Emergent motor motor auxiliary switch Over-current release Main circuit driven driven disconnection break close Energy storage Open Failure Close Power Processing Intelligent Controller unit 110V 230V Intelligent release power("1"connect positive pole,and"2"connect negative pole for direct current) ~400V Fig 1: Standard type (M type) Sb1 Shunt button...
  • Page 22 Air Circuit Breaker 1 2 3 4 5 To T03 busbar ST Power Supply Modular IV L N PE Profibus-DP 12 13 14 15 16 17 18 19 ST-DP Device 1 2 3 4 5 6 7 8 9 10 11 Special connecting wire D11D12D13 DO24V...
  • Page 23 QF: Circuit breaker NA1-□ FU1~2: Fuse RT14-20/10A SB1~2: Button LA18-22 Each one for red and green YEHL: Signal indicator AD11-25~230V Yellow GNHL: Signal indicator AD11-25~230V Green RDHL: Signal indicator AD11-25~230V Red Number inside the broken-line circle, is the terminal number on terminal block of NA1 body (Na1 Inner components) Q: Under-voltage coil~400V F: Shunt coil~230V...
  • Page 24 Air Circuit Breaker Installation 7.1 Installation 7.1.1 Unload the breaker from the soleplate of package. If it is drawout type, firstly pull out the handle under the drawer-base of breaker, and plug it into the hole on central part of plastic cover under the drawer-base crossbeam, anticlockwise turns the handle,body will slowly slide along the outside of drawer-base.
  • Page 25 Mounting with vertical brackets Mounting on rails 7.1.5 Partitions Sufficient openings must be provided in partitions to ensure good air circulation around the circuit breaker;Any partition between upstream and downstream connections of the device must be made of nonmagnetic material. For high-currents, of 2500 A and upwards, the metal supports or barriers in the immediate vicinity of a conductor must be made of non-magnetic material A;Metal barriers through which a conductor...
  • Page 26 Air Circuit Breaker 7.1.7 Main circuit adopts cable connection Users should not apply too strong mechanical strength on the terminals of Air Circuit Breaker. Extend the bus-bar of circuit breaker with connecting bus-bar, position the wiring piece of cable before inserting bolts; the cable should be fixed on the frame of distributing cabinet firmly. 7.1.8 Clamping Correct clamping of busbars depends on the tightening torques used for the nuts and bolts,etc.
  • Page 27 Connected position Test position Disconnected position Drawout position 1.Both main circuit and control 1.The main circuit is disconnected, Neither the main circuit Main body is out circuit are connected. and the control circuit is connected. nor the control circuit is connected. of the drawer seat.
  • Page 28 And the closing operation can be realized either by closing electromagnet or manual button. Shake with the manual energy-storage handle up and down about six times to "click". Recommendation for user's connecting bus-bar Inm(A) NA1-1000 NA1-2000 NA1-3200 NA1-4000 NA1-6300 In(A)
  • Page 29 11. Temperature compensation correction Ambient NA1-3200 Standard NA1-1000 NA1-2000 NA1-6300 temperature NA1-4000 2000 2000 6300 40℃ 1000 1000 1250 1600 2500 3200 4000 4000 5000 45℃ 1000 1250 1600 1900 2000 2400 3000 3800 4000 5000 6000 50℃ 1000 1250...
  • Page 30 Air Circuit Breaker 12. Coordination recommendations Rated current Short circuit current Breaking capacity of Capacity of transformer of transformer of main circuit air circuit breaker for (kVA) & parallelly In(A) (kA) main circuit (kA) connected number 1×250 2×250 3×250 18.5 1×315 11.4 11.4...
  • Page 31 Breaking capacity of Type of air circuit Air circuit breaker busbar for main circuit air circuit breaker breaker for for branch circuit (n×W×T) for branch circuit (kA) main circuit NA1-1000-400 NA1, NM8 NA1-1000-400 240mm 18.5 NA1-1000-400 27.5 NA1-1000-630 11.4 NA1, NM8...
  • Page 32 Air Circuit Breaker 13. Selectivity protection 13.1 Selective protection between NM8 and NA1 Circuit breaker NA1-2000 Rated 1000 1250 current (A) Default setting ratings 5.04 of short time-delay 8In (kA) Downstream Upstream Setting 0.4~6 0.63～9.45 0.8~12 1~15 1.25~18.75 range (kA) Delayed tripping 0.1, 0.2, 0.3, 0.4 time (s)
  • Page 33 NA1-3200 NA1-4000 NA1-6300 1600 2000 2000 2500 3200 3200 4000 4000 5000 6300 25.6 25.6 50.4 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 0.1, 0.2, 0.3, 0.4 0.06, 0.14, 0.23, 0.35 5~75 1.6~24 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 6.3~94.5...
  • Page 34 Air Circuit Breaker Circuit breaker NA1-2000 Rated 1000 1250 current (A) Default setting ratings 5.04 of short time-delay 8In (kA) Upstream Downstream Setting 0.4~6 0.63～9.45 0.8~12 1~15 1.25~18.75 range (kA) Delayed tripping 0.1, 0.2, 0.3, 0.4 time (s) 0.06, 0.14, 0.23, 0.35 Returnable time Instantaneous Rated...
  • Page 35 NA1-3200 NA1-4000 NA1-6300 1600 2000 2000 2500 3200 3200 4000 4000 5000 6300 25.6 25.6 50.4 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 0.1, 0.2, 0.3, 0.4 0.06, 0.14, 0.23, 0.35 3.45~24 3.45~30 3.45~30 3.45~37.7 3.45~48 3.45~48 4~60 4~60 5~75 6.3~94.5...
  • Page 36 Air Circuit Breaker 13.2 Selective protection in NA1 Circuit breaker NA1-2000 Rated 1000 1250 current (A) Default setting ratings 5.04 of short time-delay 8In (kA) Upstream Downstream Setting 0.4~6 0.63～9.45 0.8~12 1~15 1.25~18.75 range (kA) Delayed tripping 0.1, 0.2, 0.3, 0.4 time (s) 0.06, 0.14, 0.23, 0.35 Returnable time...
  • Page 37 NA1-3200 NA1-4000 NA1-6300 1600 2000 2000 2500 3200 3200 4000 4000 5000 6300 25.6 25.6 50.4 2~30 2~30 2.5~37.7 3.2~48 3.2~48 4~60 4~60 5~75 6.3~94.5 0.1, 0.2, 0.3, 0.4 0.06, 0.14, 0.23, 0.35 6.348~24 6.348~30 6.348~30 6.348~37.7 6.348~48 6.348~48 6.348~60 6.348~60 6.348~75 6.348~94.5...
  • Page 38 Air Circuit Breaker 14. Intelligent controller 14.1 The intelligent controller of NA1-1000 a. The standard type intelligent controller (NA1-1000) 1-Reset key 11-Overload long time-delay time setting key 2-Rated current 12-Overload long time-delay current setting key 3-MCU indicator( normal operation indicator)
  • Page 39 The communication type intelligent controller(NA1-1000) 1.Reset key 9.Setting key 2.LCD display window 10.Message key 3.Fault and alarm reset key 11.Protection key 4.Curve LED indication 12.Increasing key 5.”Fault/alarm” LED 13.Decreasing key 6.”Normal” LED 14.Choosing key 7.”Communication” indicator 15.Exit key 8.Test key 16.Testing port...
  • Page 40 Air Circuit Breaker c.Basic functions Standard (M type) Communication (H type) Controller type Three cascades Four cascades Three cascades Four cascades protection protection protection protection ● ● ● ● Long time-delay protection ● ● ● ● Short time-delay protection ● ●...
  • Page 41 Example 1 Example 2 Communication intelligent controller setting and operation. It provides 4 main menu and 1 default interface. Default interface Without other function action, it displays phases current column chart. 547 A “Testing” menu Harmonic Current I Press key to return default interface. wave H Voltage U On other non-fault interface, press...
  • Page 42 Air Circuit Breaker “historical record and maintain” menu Press key to return default interface.. Present alarm Alarm record On other non-fault interface, press to skip to testing menu. Operation times Shift record Without action for several minutes, it return to the default interface. Contact wearing Product information Trip record...
  • Page 43 Long time-delay overcurrent protection, inverse time characteristic. Setting current Error Current Tripping time (s) time error 1.05I <2h Non-trip 1.3I <1h trip 1.5I ±10% (0.4~1)In+OFF ±10% 2.0I 16.9 33.8 67.5 ±10% 1.5I 0.61 86 ±10% 6.0I 0.14 19.2 ±10% Short time-delay overcurrent protection characteristic. Setting current Error Setting delay time (s)
  • Page 44 Air Circuit Breaker Wiring diagram of the earthing fault protection. Transformer Current transformer Transformer Current transformer Intelligent Intelligent controller controller Transformer Current transformer Transformer Current transformer Intelligent Intelligent controller controller Load monitor characteristic. ×In ×In . 3 8 .
  • Page 45 14.2 The intelligent controller of NA1-2000, 3200, 4000, 6300 14.2.1 The standard type intelligent controller (NA1-2000, 3200, 4000, 6300) The M type intelligent controller is the core part of the NA1 Air Circuit Breaker to protect the electric circuit and the power supply against the dangers such as overload, short circuit and single-phase earthing fault.
  • Page 46 Air Circuit Breaker a.Symbol designation table Symbol Designation Number Frame size rated current of breaker Rated current (Ir1),Is(Ir2),Ii(Ir3) Action current of long time-delay, short time-delay and instantaneous (Ir4) Action current of earth fault or phase N Action time of long time-delay, short time-delay and grounding L1,L2,L3,G Phase A, B, C and N (or earth) Ic1,Ic2...
  • Page 47 e.Characteristic Over-current protection characteristic curve figure 10000 5000 Ir1=(0.4～1)In 2000 Tr=(15 480)s 1000 t(a) Ir2=(1.0～15)Ir1 0.4s 0.3s 0.2s 0.1s 0.05 Ir3=1.0In～50kA/75kA/100kA 0.02 0.01 .4 .5 .6 8 10 40 50 60 70 80 100 Overload long time-delay protection Current Ratings Error Current Action Time...
  • Page 48 Air Circuit Breaker Short circuit instantaneous protection Current Ratings Range(lr3) Error Current Action Characteristic ≤0.85Ir3 Non-trip 1.0 ln~50kA/ 75kA/100kA ±15% +OFF (OFF Position) ＞1.15Ir3 trip Note: When the controller is of structure I (lnm=2000A), the instantaneous protection setting is 1.0 ln~50 KA+OFF; when the controller is of structure II (lnm=3200A) and structure III (lnm=6300A), the instantaneous protection setting is 1.0 ln~75 KA+OFF;...
  • Page 49 Wiring diagram of the earthing fault protection 3PT type 4PT type (3P+N) T type Intelligent Controller Intelligent Intelligent Controller Controller 14.2.2 The communication type intelligent controller As the core part of the NA1 Air Circuit Breaker, the H type intelligent controller could protect the electric circuit from overload, short circuit, single-phase earthing fault and residual current, etc.
  • Page 50 Air Circuit Breaker a.Comparison of signal and meaning Serial Signal Meaning Number The maximal rated current of the frame size of circuit breaker Rated current of circuit breaker Rated current of externally connected current transformer for residual current protection Ir1, Ir2, Ir3 They stand for long time-delay, short time-delay and instantaneous setting acting current value separately.
  • Page 51 Step 3: Press "FUNCTION" button till setting lamp flashes. Step 4: Press "ENTER" button to make acting current setting of load monitor 1 be displayed in current meter display window, and setting lamp flashes at that time. Step 5: Press “▲” and “ ▲...
  • Page 52 Air Circuit Breaker e.Instruction to technical property 5000 2000 1000 Express inverse-time 1 (Ordinary use) Express inverse-time 2 (Motor protection) Express inverse-time Standard inverse-time t(s) High-voltage fuse compatibility 0.05 0.02 0.01 0.4 0.5 0.6 Xin1 . 4 6 .
  • Page 53 f. Overload long time-delay protection ■Power distribution or motor protection Ir1= (0.4~1.0)In + OFF (Exit position) Setting current I≤1.05Ir1 without actions in 2h Acting property I＞1.20Ir1 with actions while it's less than 1h Property curve Curve 1~curve 5, could be rectified, rectified as curve 3 for ex-factory Inverse-time (s) Curve speed IEC255 standard, 80 level points totally, could be rectified...
  • Page 54 Air Circuit Breaker ■Earth fault protection (0.1~1.0)s + OFF (Level difference 0.1s, OFF means it only alarms without tripping.) Inverse-time (s) Inverse-time cutting 1.5~6 + OFF (Level difference 0.5, OFF means earth fault is definite-time) (Corresponding 2Ir1) coefficient K ±10% (intrinsic 40ms) Precision (0.1~1.0)Io + OFF (Level different 0.01A, OFF means exit position) ＜0.8If without actions...
  • Page 55 Technical parameter: ■Load monitor type 1 (0.2~1.0)In + OFF (OFF means exit position) ≤1.05Ic1 without action Rectified current Acting property ＞1.21c1 delay relay action Property curve The same as overload long delay Inverse-time (s) Curve speed Could be set separately (Setting content is the same as that of overload long delay) (0.2~1.0)In + OFF (OFF means exit position) ≤1.05Ic2 without action Rectified current...
  • Page 56 0,1s,2s,3s,4s,5s,6s,7s are fixed for NA1-1000, 1s,3s,5s7s are fixed for NA1-2000,3200,4000,6300. d.Within 1/2 time-delay range, circuit breaker does not trip when power voltage recovers and exceeds 85%Ue.
  • Page 57 15.3 Closing release After the motor finishing the energy storage, closing release can instantly close the circuit breaker. Characteristic Type NA1-1000 NA1-2000, 3200, 4000, 6300 DC220, 110 Rated control power voltage Us(V) AC230, 400 DC220, 110 AC400, 230, 127 Work voltage (V) (0.85-1.1)Us...
  • Page 58 Air Circuit Breaker 15.7 Phases barrier Installed between the busbars to increase the creepage distance. 15.8 Off position locking mechanism When the circuit breaker is disconnected, padlock can be used to lock it after pulling out the lock lever, then the circuit breaker can't be “Test” or “connected”...
  • Page 59 15.12 Cable mechanical interlock It can realize the interlock of two horizontal or vertical-installed, three poles or four poles ,drawout type or fixed type circuit breaker. a.If need bend the cable, make sure the radian is more than 120°. b.Check and make sure enough lubricating oil of the cable. c.The maximal distance between two interlock circuit breaker is 2m.
  • Page 60 Air Circuit Breaker 15.14 Drawer base misplug-proof device (NA1-1000) Only the matched circuit breaker body could inserted to the drawer base. When not matched, it can't be inserted. Bracket 2 Nameplate Bracket 1 Body Drawout base Match Mis-match Mis-match Regular malfunction and solutions...
  • Page 61 Fault description Reasons analysis Maintenance method Mechanical interlock acting Check the working state of two circuit breakers leads to locking of breaker fixed with mechanical interlock The breaker Closing electromagnet: can't be 1.Rated control voltage is 1. Power voltage of closing electromagnet closed less than 85%Us;...
  • Page 62 Air Circuit Breaker 17. Order sheet Customer: Tel: Date: Quantity: Model NA1-1000 NA1-2000 NA1-3200 NA1-4000 NA1-6300 □4000□5000 □200 □400 □630 □400 □630 □800□1000 □2000 □2500 Rated current □4000 □800□1000 □1250 □1600 □2000 □3200 □6300( only 3 poles (In)A Installation mode □...
  • Page 63 Model NA1-1000 NA1-2000 NA1-3200 NA1-4000 NA1-6300 Others functions Protection function □ M-type 1. □Ir1 protection for overload long time-delay, Ir2 inverse-time protection standard + definite time-delay protection for short-circuit short time-delay, Ir3 instantaneous protection for short-circuit, Ir4 4-section protection for type (default 1.
  • Page 64 Zhejiang CHINT Electrics Co.,Ltd TEL: +86-577-62777777 62877777 FAX: +86-577-62775769 62871811 ADD: CHINT High-tech Industrial Zone, North Baixiang, Wenzhou, Zhejiang Province, P.R.China 325603 Dec 2007 E-MAIL: global-sales@chint.com Website: www.chint.com 2008007 0712 CHINT Group All Rights Reserved Recycle Paper Printed Specifications and technical data are subject to change without notice.

This manual is also suitable for:

Na1-2000Na1-3200Na1-4000Na1-6300

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