The Schneider Electric Masterpact WG 4P 800A is a 4-pole (3-phase + neutral), 800A Air Circuit Breaker (ACB) from the Masterpact WG series. Designed as a high-performance, intelligent circuit breaker for critical power distribution, it provides advanced protection, control, and monitoring for main incoming feeders and large distribution circuits in commercial, industrial, and infrastructure applications where neutral protection and isolation are essential.
Specifications
Parameter Specification
Product Series Masterpact WG (Air Circuit Breaker)
Frame Size WG frame (typically covers 400A to 800A/1000A range)
Number of Poles 4 Poles (3P + N) – All poles protected.
Rated Current (In) 800 Amperes
Trip Unit Micrologic Electronic Trip Unit (e.g., Micrologic 5.0, 6.0, or 7.0) with advanced digital capabilities.
Breaking Capacity (Icu) 42 kA, 50 kA, 65 kA, 100 kA @ 400V AC (specific to model variant).
Rated Voltage (Ue) Up to 690V AC
Short-Time Withstand (Icw) Typically 30 kA to 50 kA for 1s (model dependent).
Protection Functions • Long-time overload (L)
• Short-time short-circuit (S)
• Instantaneous short-circuit (I)
• Ground fault (G)
• Neutral protection (with 4-pole units)
Communication Standard communication port; supports Ethernet, Modbus, Profibus, DeviceNet via optional modules.
Operation Manual spring-charged mechanism or motor operation.
Mounting Fixed or Draw-out version (with safety interlocks).
Connection Front or rear connection for cables or busbars.
Width (4P) Approximately 260-320 mm (draw-out version).
Standards IEC 60947-2, UL 1066, ANSI, CCC, CE