WATSNB-63/50.4CBR_Schenider_PRODUCT_吉林易择科技技术发展有限公司

The Schneider Electric WATSNB‑63/50 .4CBR is a dual power automatic transfer switch (ATS) designed for three‑phase low‑voltage power distribution systems. It provides reliable automatic or manual switching of electrical loads between two independent AC sources — such as utility mains and a standby generator — to maintain uninterrupted power for critical loads. The 4‑pole configuration switches all three phase conductors (L1, L2, L3) and neutral (N), allowing complete electrical isolation and enhanced safety. The switch continuously monitors both power sources and initiates transfer when a preferred source fails or is restored. Integrated auxiliary contacts offer remote status indication and interface with control or monitoring systems. A safety interlock mechanism prevents both sources from being connected simultaneously, improving operational safety.

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DESCRIBE

Technical Specifications Parameter Specification Model WATSNB‑63/50 .4CBR Product Type Dual Power Automatic Transfer Switch Rated Frame Current 63 A Switched Poles 4‑pole (L1, L2, L3, N — three phases plus neutral) Configuration Code .4CBR (4‑pole with auxiliary/feedback contacts and interlock) Rated System Voltage Low‑voltage AC three‑phase (typically ~380–440 V) Rated Frequency 50 Hz / 60 Hz Operation Modes Automatic transfer, manual override, interlocked switching Auxiliary Contacts Included for remote status indication and control feedback Safety Interlock Prevents simultaneous connection of both incoming power sources Mounting Panel / switchboard installation Applications Utility to generator changeover, backup power systems, industrial & commercial distribution

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