WATSNB-63/20.4CBR_Schenider_PRODUCT_吉林易择科技技术发展有限公司

The Schneider Electric WATSNB‑63/20 .4CBR is a dual power automatic transfer switch (ATS) designed for three‑phase low‑voltage power distribution systems. It enables reliable switching of the load between two independent AC power sources (such as utility mains and a backup generator) to maintain continuity of electrical supply for critical loads. The device automatically detects loss or return of the primary source and transfers the load to the alternate source.

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DESCRIBE

Technical Specifications Parameter Specification Model WATSNB‑63/20 .4CBR Product Type Dual Power Automatic Transfer Switch Rated Current 63 A (switch frame rating) Switched Poles 4‑pole (L1, L2, L3, N – all phases and neutral) Configuration Code .4CBR (4‑pole with auxiliary/feedback contacts and interlock) Rated System Voltage Low‑voltage AC three‑phase system (commonly ~380–440 V) Rated Frequency 50 Hz / 60 Hz Operation Modes Automatic transfer, manual transfer, interlocked operation Auxiliary Contacts Yes – remote status/position indication and control feedback Safety Interlock Prevents simultaneous connection of both incoming sources Mounting Panel or distribution board installation Application Areas Utility/generator changeover, backup power systems, industrial/commercial distribution

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