WATSNB-100/80.3CBR_Schenider_PRODUCT_吉林易择科技技术发展有限公司

The Schneider Electric WATSNB‑100/80 .3CBR is a dual power automatic transfer switch (ATS) designed for three‑phase low‑voltage power distribution systems. It enables reliable switching of a three‑phase electrical load between two independent AC power sources (such as utility mains and a backup generator) to maintain continuous power supply for critical loads. The device continuously monitors both incoming sources and automatically transfers the load when one source fails or is restored. The 3‑pole design switches only the three phase conductors (L1, L2, L3) and does not switch the neutral, making it suitable for systems where neutral transfer is not required. Auxiliary contacts provide remote status indication and interface to control systems. A mechanical/electrical interlock prevents both sources from being connected simultaneously, enhancing safety.

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DESCRIBE

Technical Specifications Parameter Specification Model WATSNB‑100/80 .3CBR Product Type Dual Power Automatic Transfer Switch Rated Current 100 A switch frame rating Switched Poles 3‑pole (L1, L2, L3; neutral not switched) Configuration Code .3CBR (3‑pole with auxiliary/feedback contacts and interlock) Rated System Voltage Low‑voltage three‑phase AC (typically ~380–440 V) Rated Frequency 50 Hz / 60 Hz Operation Modes Automatic transfer, manual override, interlocked switching Auxiliary Contacts Yes – for remote status indication and control feedback Safety Interlock Prevents simultaneous connection of both power sources Mounting Panel or switchboard installation Typical Applications Utility/generator changeover, backup power switching, industrial/commercial distribution

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