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Detailed content Specification parameter Product packaging

3 Pole MCB Breaker Information

  • Rated Current: 63 amp

  • Rated Voltage: 230/400V AC, 50Hz

  • Number of poles: 3 pole

  • 6 kA rated short-circuit breaking capacity

  • Compliant with IEC standard

  • C curve trip characteristic

  • With overload protection and short circuit protection function

Technical Data

ModelATO-NB8-633PC63
Rated Current63A
Rated Voltage230/400V
Frequency50Hz
Number of Poles3P
Mechanical Life20000 Times
Electrical Life10000 Times
Rated Short-Circuit Breaking Capacity6000A
Operating Short-Circuit Breaking Capacity6000A
Rated Impulse Withstand Voltage (1.2/50)6kV
Dielectric Test Voltage2000V (50Hz, 1 min)
Heat & Humidity Resistance28 Cycles
Vibration ResistanceNo Obvious Vibration and Impact
Terminal BlockTerminal Block TypePillar Terminal Block
Min. Terminal Size Acceptability1mm2
Max. Terminal Size Acceptability25mm2
Standard Connection Torque2 N.m
Max. Tolerable Torque2.5 N.m
Wire Insertion Depth13mm
Reference Temperature30℃
Operating Temperature-35℃~+70℃
Storage Temperature35℃~+85℃
Applicable Altitude2000m
Tripping ModeThermal Magnetic Trip
Electromagnetic Tripping TypeType C (5In-10In)
Shell Flame Retardant GradeV0
Wire Entry MethodBoth Upper and Lower
Installation MethodTH35-7.5 Standard Rail
Protection LevelDirect InstallationIP20B
Installed in the Distribution BoxIP40B


3 Pole MCB Breaker Dimensions (Unit: mm)

63 amp 3 pole Miniature Circuit Breaker Dimensions

Details

3 pole Miniature Circuit Breaker Details

Tips: Difference between circuit breaker and contactor
Circuit breaker plays a protective role in extinguish arc and disconnecting circuit. Contactor refers that coil is used for the on-off control of circuit. When contactor is charged, the circuit that is normally connected will be cut off and the circuit that is normally closed will be connected.

  1. Circuit breaker is mainly used for protection and its common protections include overload protection, short circuit short delay and short circuit delay. In addition, there are other protections that depend on brand and model, including under-voltage, over-voltage etc. Switch can be manually operated or electric-driven. Installation modes are various such as fixed installation and drawer etc. According to current and working voltage level, they can be divided into many types.

  2. Contactor mostly used in the industrial control is mainly introduced into manufacturing television. Of course, it also can be used in heater and double power switch. The on-off control of contactor is achieved by controlling coil voltage. According to different arc structures, they can be divided into vacuum contactor and standard contactor. According to different control voltage, they can be categorized into direct current contactor and alternating current contactor and its main accessories are auxiliary contactor.