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ISCB1 25L1 4P

Schneider Electric iSCB1 is a 25L1 frame, 4-pole Air Circuit Breaker (ACB) from the Masterpact iSCB series. Designed as a compact, intelligent air circuit breaker, it provides advanced protection, control, and monitoring capabilities for low-voltage power distribution systems in commercial, industrial, and infrastructure applications.

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Specifications Parameter Specification Product Series Masterpact iSCB1 Frame Size 25L1 Poles 4P (3 phases + neutral) Rated Current Range 250A - 400A (25L1 frame typically max 400A) Rated Voltage (Ue) Up to 690V AC Rated Frequency 50/60 Hz Breaking Capacity (Icu) 42kA / 50kA / 65kA @ 400V AC (depending on model) Short-Time Withstand (Icw) Typically 25kA / 1s to 40kA / 1s Trip Unit Micrologic 5.0A or 6.0A electronic trip unit Protection Functions • Long-time overload (L) • Short-time short-circuit (S) • Instantaneous short-circuit (I) • Ground fault (G) Communication Standard communication port, supports Modbus, Profibus, DeviceNet, Ethernet Standards Compliance IEC 60947-2, UL 489, CCC, CE Operation Manual (spring mechanism) or motor operation Mounting Fixed type or draw-out version available Connection Front connection, cable or busbar Width (4P) Approximately 280-320 mm