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TXL7-63 Miniature Circuit Breaker (10KA Miniature Circuit Breaker), mainly used for protection distribution lines of AC 50Hz / 60Hz, rated voltage of 110V, 230V(220V), 400V (380V), rated current of 1A, 3A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 60A and 63A, rated short-circuit breaking capacity is 10KA or below, and used for the lines of not frequent making, breaking and conversion, with overload, short circuit protection. At the same time, the 10KA MCB has a strong auxiliary function modules, such as auxiliary contacts, indication contacts with alarm, shunt release, undervoltage release remote trip control and other modules.
TXL7-63 Miniature Circuit Breaker (10KA MCB) complies with standards of GB10963.1, IEC60898-1 standard.



The upper limit of ambient air temperature shall not exceed +40°C, the lower limit shall not be lower than -5°C, and the 24-hour average temperature shall not exceed +35°C.
The altitude of the installation site should not exceed 2000m.
The relative humidity of the atmosphere does not exceed 50% when the ambient air temperature is +40°C. Higher relative humidity is allowed at lower temperatures. Special measures should be taken for condensation that occasionally occurs on the surface of the product due to temperature changes. .
Pollution level: Class II.
Installation conditions: Install in a place without significant shock and vibration, and in a medium without explosion hazard.
Installation method: use TH35-7.5 mounting rail to install.
Installation category: II, III.



Rated Current 6A,10A,16A,25A,32A,40A,50A,63A
Poles 1P, 2P, 3P, 4P
Rated Voltage Ue 230V/240V
Rated Impulse Withstand Voltage(1.2/50) Uimp 6kV
Dielectric Test Voltage At And Ind. Freq.For 1min 2kV
Protection Class IP20
Rated Short-circuit Breaking Capacity 10000A
Thermo-Magnetic Release Characteristic B-Curve (3-5ln),C-Curve (5-10ln),D-Curve (10-14ln)
Electrical Life 2000
Mechanical Life 10000
Reference Temperature For Setting Of Thermal Element 35°C
Ambient Temperature -5°C~+40°C
Terminal Connection Type Phillips Screws
Adapter Cable 6-63A 1-25mm216-3AWG
Tightening Torque 3.0N.M
Combination With Accessories Auxilary Contact
Auxillary Contact Yes
Alarm Contact Yes
Shunt Release Yes
Under Voltage Release Yes




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 Coefficient 1.25 1.2 1.15 1.10 1.05 1.00 0.95 0.90 0.85

Over-current Protection Characteristics Ambient Temperature 30°C~35°C

NO. Trip type Rated Current In Test Current A Appointed time Expected result Initial state
1 C、D All values 1.13ln t≤1h Non tripping Cold
2 C、D All values 1.45ln t<1h Tripping Immidiately after
the last test
3 C、D ≤32 2.55ln s Tripping Cold
>32 1s
4 C All values 5ln t≤0.1s Non tripping Cold
D 10ln
5 C All values 10ln t≤0.1s Tripping Cold
D 20ln


Trip Type Rated Current A Rated Short-circuit Breaking Capacity A COSΦ
C、D 6≤ln≤63 10000 0.45-0.50


Rated current (A) Minimum Adapter Copper Wire
6 1 MM2/17AWG
10 1.5 MM2/16AWG
16 1.5 MM2/16AWG
25 2.5 MM2/13AWG
32 4 MM2/11AWG
40 6 MM2/10AWG
50 10 MM2/7AWG
63 10MM2/7AWG




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