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.
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