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Non-Polarity DC Mini Circuit Breaker WM3-125DC

Standard IEC/EN 60947-2
Protection Overcurrent and short circuit
Type of trip Thermal-magnetic
No. of poles 1P 2P 3P 4P
Rated voltage (Ue) 300VDC 600VDC 900VDC 1200VDC
Rated currents (In) 80,100,125A
Rated insulation voltage (Ui) 1200V
Rated impulse withstand voltage (Uimp) (1.2/50μs) 6kV
Rated service short circuit breaking capacity (lcs) 6kA
Rated ultimate short circuit breaking capacity (lcu) 6kA
Thermal tripping characteristics 1.05XIn No tripping within an hour; 1.3XIn Tripping within an hour
Instantaneous tripping characteristics B:4In±20%,C:8In±20%,K:10In±20%
Electrical life Actual value >1,000 Cycles
Standard value 200 Cycles
Mechanical life Actual value >10,000 Cycles
Standard value 9700 Cycles
Contact position indicator green OFF/ red ON
Overvoltage category 3
Pollution degree 3
Ingress protection IP40, Wiring port IP20
Resistance to humidity and heat Class2
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Product Description About Us

WM3-125DC is a non-polarized DC miniature circuit breaker designed for photovoltaic, enery storage, and other high-voltage DC applications. Supporting 80-125A at up to 1200VDC and available in 1P/2P/3P/4P configurations its polarity free design simplifies installation,eliminates wiring errors, and enables fast, efficient field deployment.With high-voltage capability, dependable arc suppression, and precise tripping, it ensures reliable performance and enhanced safety formodern systems.

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