WATSN400/4A 400A_Schneider_PRODUCT_吉林易择科技技术发展有限公司

The WATSN400/4A is a 4‑pole 400A molded case circuit breaker designed for overcurrent and short‑circuit protection in low‑voltage power distribution systems. With an electronic trip unit and fixed‑mount design, it provides precise and reliable protection for main circuits and large loads in industrial and commercial installations.

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DESCRIBE

Specifications Parameter Specification Model WATSN400/4A Frame Size 400A Rated Current (In) 400 A (adjustable) Poles 4P (3 phases + neutral) 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 95‑240 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 Main distribution switchboards Industrial power supply and motor control centers Large commercial buildings and data centers Generator and transformer protection circuits

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