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10kA 125A High Current Miniature Circuit Breaker

The APM3-125H is a high-current circuit breaker designed to handle demanding electrical environments. With a 125A rating, it is well-suited for high-voltage load applications and provides robust protection and control for high-current loads. This makes it an ideal choice for industrial settings and large-scale construction projects where reliable performance is critical.

Standard IEC/EN60898-1 IEC/EN60947-2
Protection Overcurrent and short circuit
Type of trip Thermo-magnetic
Rated Current In 80,100,125A
Poles 1P, 1P+N, 2P, 3P,3P+N, 4P
Rated voltage Ue 240/415V~
Rated frequency 50/60Hz
Rated breaking capacity 6,000A 10,000A
Rated impulse withstand voltage (1.2/50) Uimp 4,000V
Dielectric test voltage at ind. Freq. for 1 min 2kV
Thermal release characteristic (1.13-1.45) x In (8-12) x In
Magnetic release characteristic C:(5-10) x In, D:(10-20) x In
Electrical life 4,000 Cycles
Mechanical life 10,000 Cycles
Contact position indicator Yes
Protection degree IP20
Ambient temperature (with daily average≤35℃) -5℃~+40℃, Max. 95%humidity
Terminal connection type Cable/Pin-type busbar
Max. terminal size for cable 50mm2
Max. tightening torque 3.5N.m
Installation Mounting on 35mm Din rail
Connection From top and bottom


Circuit Diagram

ETEK MCB Circuit Diagram

Installation size

ETEK High Current 10kA MCB EKM3-125H


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10kA 125A High Current Miniature Circuit Breaker
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