WATSNB-40/4PCR_Schenider_PRODUCT_吉林易择科技技术发展有限公司

The Schneider Electric WATSNB‑40/4PCR is a dual power automatic transfer switch designed for three‑phase low‑voltage power distribution systems. It provides reliable and automatic switching between two independent AC power sources (such as utility mains and a standby generator) to maintain continuous power supply for critical loads. The 4‑pole configuration switches all three phase conductors plus neutral for full load transfer and safety. The unit supports both automatic and manual changeover modes and includes auxiliary contacts for status feedback and system integration.

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DESCRIBE

Technical Specifications Parameter Specification Model WATSNB‑40/4PCR Product Type Dual Power Automatic Transfer Switch Rated Frame Current 40 A Poles Switched 4‑pole (Phase L1, L2, L3, and Neutral) Electrical Level/Class PC‑level transfer switch (Power Control class) Operation Modes Automatic transfer, manual override, interlocked switching Rated Operational Voltage Designed for low‑voltage AC systems (typically up to ~400 V three‑phase) Rated Frequency 50 Hz / 60 Hz Auxiliary Contacts Provided for remote status indication and control feedback Safety Interlock Prevents both power sources from being connected simultaneously Mounting Panel or switchboard installation Typical Applications Utility/generator transfer, backup power systems, industrial/commercial distribution

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