Residual current operated circuit breaker (12 pages)
Summary of Contents for CNC YCM3 Series
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YCM3 series Moulded Case Circuit Breaker Instructions Standard: IEC 60947-2...
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Moulded Case Circuit Breaker Instructions 1 General YCM3 Series moulded case circuit breaker, is new products, with small compact, modular, high break, double breakpoints, zero arcing, green environmental protection. Suitable for AC 50Hz, 60Hz, rated operating voltage 690V and below, rated current 12.5A to 1600A distribution network, used to distribute electrical energy...
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month does not exceed +25°C for the average of the month The maximum relative humidity is not more than 90%, and the condensation on the surface of the product due to temperature changes is considered. 2.3 YCM3 intellgent type with temperature of the surrounding medium is -40°C~+80°C.
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contacts, shunt releases, and under-voltage releases, as well as external accessories such as external rotary operating handles, motor-driven mechanism, mechanical locks, and terminal covers. The under-voltage release is used for under-voltage protection of the circuit and the motor; the shunt release is used for remotely control of the circuit breaker;...
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4 Type designation □ □ □ □ YC M 3 Number of poles:3 for 3P、4 for 4P Breaking capacity code: N:Standard;H:High Breaking type Frame size current: 100, 160, 250, 400, 630, 1600 Release type code: MA:Single magnetic T/A : overload adjustable RT: Overload+short circuit adjustable E : Electronic(2.0E,3.0E) Y: LCD intelligent electronic...
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5 Technical data 5.1 The basic parameters of the circuit breaker are shown in Table 3. 5.2 The operating characteristics of the circuit breaker's overload long delay and short circuit instantaneous protection are shown in Table 4 and Table 5. 5.3 See Table 6 for the current setting range of the circuit breaker.
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Renew Table 3 Type YCM3-100 YCM3-160 YCM3-250 Additional Residual current protection module Remaining Current (See P21-23 LE remaining current module for protection specific parameters) AC415V 10000 10000 8000 8000 8000 8000 Electrical life test AC690V 1500 1500 1500 1500 1500 1500 Number of 20000...
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Renew Table 3 Type YCM3-400 YCM3-630 YCM3-1600 Number of poles 3P, 4P 3P, 4P 3P, 4P Shell frame maximum rated 1600 current Inm(A) 800/1000/ 250/315/ 400/500/ Rated current In(A) 350/400 600/630 1250/1600 Thermal Thermal Thermal Intelligent Intelligent Intelligent Type of stripper or single- or single- or single-...
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Renew Table 3 Type YCM3-100 YCM3-160 YCM3-250 Number of 10000 10000 10000 10000 10000 mechanical life Wide 140/185 140/185 210/280 (3P/4P) Dimensions Long High Manual direct operation Mode of Rotate operation handle operation Electric operating mechanism Fixed type (Front of plate) Fixed type...
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Renew Table 4 Distribution breaker Serial Circumstance number temperature Tripping time Test current(times) Status >0.2s Tripping Any suitable Initial 10In±20% temperature ≤0.2s Tripping 12In Table 5 Motor protection breaker Serial Circumstance number temperature Tripping time Test current(times) Status 2h Non-tripping 1.05In Initial Following...
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14 YCM3 Smart circuit breaker controller part 14.1 YCM3 Series Electronic LCD Circuit Breaker The manufacturer will not be held responsible for the adverse consequences caused by operation not in accordance with the requirements of this manual. 14.2 Operation interface...
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14.4 Operation keypad <Arrow Keys> 1. In the normal working state, press the " " key to enter the menu △ of parameters; press the " " key to enter the menu of faults. ▽ 2. When in the editing mode of a parameter, scroll up and down to increase or decrease the modified value.
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14.6 Protection Info display Overload instantaneous long-time setting delay current Overload long-time Ground-faut delay time delay time Short-circuit short-time Neutral delay current protection Short-circuit short-time Slave address delay time setting 14.7 Fault info display When the following faults occur, you can press keypad up and down to view the last three times of the faults(press V for more than 3 seconds to delete the fault record) lr overload long-time fault...
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14.8 Symbol Desugnation lndicates the data is the lndicates a trip fault (the measured value latest 3 histories viewable) Indicates a viewing functioni lndicates that the data is is being carried out locked and saved (current or fault) Indicates that the measured Indicates that the data is !...
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1.For a three-pole circuit breaker, the neutral line protection can be achieved by installing an external neutral line transformer, otherwise, select OFF the function; for a four-pole circuit breaker, the neutral line protection can be set by pressing the keypad. 2.After confirming the setting of each parameter value, you can use the ESC key to return to the main menu (real-time current cycle display) or automatically return after stand-alone for 30s.
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15 Overall and mounting dimensions(mm) 15.1 YCM3-100, 160, 250 Overall and mounting dimensions(mm) Attention1 Attention1 Attention1: when in>100A,Fixing screw size should be M8 ,When In ≤100A, fixing screw size should be M6. 3P : Installed on the panel 3P : Installed on leading rails 4P : Installed on the panel 4P : Installed on leading rails - 20 -...
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15.2 YCM3-400, 630 Overall and mounting dimensions(mm) 3P : Installed on the panel 3P : Installed on leading rails 4P : Installed on the panel 4P : Installed on leading rails - 21 -...
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15.3 YCM3-1600 Overall and mounting dimensions(mm) 3P : Installed on the panel 3P : Installed on leading rails 4P : Installed on the panel 4P : Installed on leading rails - 22 -...
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15.4 YCM3-100, 160, 250 (with residual current module) Overall and mounting dimensions(mm) Attention1 Attention1 Attention1: when in>100A, Fixing screw size should be M8, When In≤100A, fixing screw size should be M6. 3P : Installed on the panel 3P : Installed on leading rails 4P : Installed on the panel 4P : Installed on leading rails - 23 -...
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15.5 YCM3-400, 630 (with residual current module) Overall and mounting dimensions(mm) 3P : Installed on the panel 3P : Installed on leading rails 4P : Installed on the panel 4P : Installed on leading rails - 24 -...
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16 LE Residual current Action Protection device module (Leakage protection module) 16.1 Provides leakage protection for all three-pole or four-pole YCM3-100 to 630 circuit breakers. The circiot bresker with LE residual current protection module realizes the leakage protection function under the premise of maintaining the overall characteristics of the circuit breaker, and the LE module can directly act on the stripping unit.
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16.5 Selection of LE modules LE-ME LE-MH LE-MB Model Polar number 3, 4 3, 4 3、4 YCM3-100 YCM3-160 YCM3-250 YCM3-400 YCM3-630 Protective features Adjustable Adjustable Sensitivity I n(A) Fixed 0.36 0.03-0.3-1-3-10 0.03-0.3-1-3-10 Whether the delay Fixed Adjustable Adjustable is adjustable Delay settings <40 0-60 -150 -310...
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1.Sensitivity setting 2.Delay setting(for selective leakage protection) 3.Calibration of the seal Sleeve 4.Test button-used to simulate leakage failure, to periodically check leakage protection function 5.Reset button(after leakage fault buckle must be reset) 6.Nameplate 7.Location of secondary contacts 8.6 Operational safety LE Modular A user-friendly device that requires regular testing by the user (tested every 6 months) - 27 -...
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17 Accessories 17.1 The internal accessories of the circuit breaker are installed in the inner cavity of the cover plate, and the shunt release, undervoltage release, auxiliary contact and alarm contact are all made into separate modules. Therefore, the installation is simple, convenient, safe and reliable, and the user can instal the corresponding position of the circuit breaker by himself.
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Accesspry name Rated operating voltage Applicable shell frame Sensitivity I n(A) YCM3-100 △ adjustable range : YCM3-160 0.03,0.3,1,3,10. YCM3-250 Note: The circuit breaker can be provided as needed by the user. Remaining current YCM3-400 Only the alarm does not protection module YCM3-630 trip.
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1.YCM3-100、160、200 2.YCM3-400、630 Outer connecting plate Outer connecting plate 3.YCM3-1600 Outer connecting plate Note: Thermomagnetic and electronic dimensions, mounting dimensions and accessories are identical. 17.2 Shunt release For remote control of the circuit breaker opening, the shunt release can reliably open the circuit breaker between 70% and 110% US.
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17.4 Auxiliary contact Function: Indicates the opening and closing state of the circuit breaker. When the circuit breaker is in the opening position When the circuit breaker is in the closing position Power Closing circuit Opening circuit Coupling coil 17.5 Alarm contact Function: Indicates the possible cause of tripping of the circuit breaker a: overload;...
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18 Tips for Installation, operation and maintenance 18.1 This circuit breaker must be wired and installed by qualified personnel, and it is strictly prohibited to unpack it without authorization, otherwise you will be responsible for the consequences. 18.2 lt is strictly forbidden to operate the circuit breaker with wet hands, otherwise an electric shock may occur.
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