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WM5E-400S3400

The Schneider Electric WM5E-400S3400 is an EcoActiPak WM5E series air circuit breaker (ACB) designed for low-voltage electrical distribution. It is a 3-pole (3P) fixed version with a rated current of 400 A. This circuit breaker features a Micrologic 5.0 E electronic trip unit, which provides adjustable protection functions including long-time (L), short-time (S), instantaneous (I), and ground-fault (G) protection (LSIG).

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Technical Specifications (Parameters) Parameter English Value Product Type Air circuit breaker (ACB) Range / Series EcoActiPak / WM5E Poles Description 3P (3 poles) Rated Current [In] 400 A at 40 °C Trip Unit Micrologic 5.0 E (electronic) Protection Functions LSIG (Long-time, Short-time, Instantaneous, Ground-fault) Breaking Capacity [Icu] 50 kA at 415 V AC (IEC 60947-2) Rated Operational Voltage [Ue] 690 V AC 50/60 Hz Rated Insulation Voltage [Ui] 1000 V Rated Impulse Withstand Voltage [Uimp] 12 kV Control Type Manual or motor-operated mechanism (optional) Mounting Type Drawout Degree of Protection IP40 (front face) Dimensions (W x H x D) Approx. 320 mm x 420 mm x 320 mm (varies by configuration) Ambient Air Temperature (Operation) -5 ... 40 °C Standards IEC 60947-2, EN 60947-2