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Scope of Application

TXC65-63 6KA Circuit Breaker (also called 6KA Household MCB, similar to CHINT NB1-63) is used for the circuit of AC 50Hz, rated voltage of 110V/230/400V, rated current of 1A, 2A, 3A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 60A, 63A to protect overload and short-circuit, as well as use for normal circumstances of the infrequent circuit conversion, also be used as the isolating switch for cut-off circuit to protect circuit and equipment.
6KA Circuit Breaker (6KA Household MCB) are used for industrial, commercial, high-rise and civilian residential and other places.
Meet the standards: GB10963.1, IEC60898-1.

Main Technical Parameters

Rated Current6A,10A,16A,25A,40A,50A,63A
Rated Voltage Ue230V/400V
Rated Impulse Withstand Voltage(1.2/50)Uimp6kV
Dielectric Test Voltage At And Ind . Freq . For 1min6kV
Breaking IndicationGreen Window(Disconnected),Red Window(Closed)
Protection ClassIP20
Thermo - Magnetic Release CharacteristicB-Curve (3-5In),C-Curve (5-10In),D-Curve (10-14In)
Electrical Life2000
Mechanical Life10000
Reference Temperature For Setting Of Thermal Element30℃
Ambient Temperature-5~+40℃
Terminal Connection TypePhillips Screws
Adapter Cable6-63A 1-25mm² 16-3AWG | 80-125A 8-35mm² 16-2AWG
Tightening Torque3.0N.M
Combination With Accessories Auxillary Contact
Auxillary ContactYes
Alarm ContactYes
Shunt ReleaseYes
Under Voltage ReleaseYes

Tripping Characteristic Curve -- B C D Type

Temperature compensation

When the ambient temperature is not a benchmark of 30 degrees , the reference correction factor is as folows .

Ambient Temperature-20℃-10℃0℃10℃20℃30℃40℃50℃60℃
Current Correction Coefficient1.


Rated CurrentMinimum Adapter Copper Wire
6A1 MM² / 17AWG
10A1.5 MM² / 16AWG
16A1.5 MM² / 16AWG
25A2.5 MM² / 13AWG
32A4 MM² / 11AWG
40A6 MM² / 10AWG
50A10 MM² / 7AWG
63A10 MM² / 7AWG

Mounting Method

Th35-7.5 type steel mounting rail is used for installation.

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