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WATSN320-320A

The WATSN320 is a 320A molded case circuit breaker designed for reliable overcurrent and short-circuit protection in low-voltage power distribution systems. Featuring an electronic trip unit and fixed-mount design, it is suitable for industrial main circuits, motor protection, and commercial distribution applications.

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Specifications Parameter Specification Model WATSN320 Frame Size 320A Rated Current (In) 320 A (adjustable) Poles Typically 3P or 4P (specify when ordering) Rated Operational Voltage (Ue) 400 V AC 50/60 Hz Breaking Capacity (Icu) 36 kA at 400 V AC Trip Unit Electronic Micrologic 2.0/5.0/6.0 Protection Functions Long‑time, short‑time, instantaneous, ground fault Mounting Fixed type Connection Capacity 70‑185 mm² (copper cable) Ambient Temperature Range –25 °C to +70 °C Mechanical Life 8,500 operations Standards IEC 60947‑2, GB 14048.2 Communication Optional communication module (Micrologic E/F/H) Primary Applications Industrial main distribution panels Motor control centers (MCCs) Commercial building main switchboards Power supply protection for large equipment