The Schneider Electric WATSNB‑250/200 .3CBR is a dual power automatic transfer switch designed for three‑phase low‑voltage power distribution systems. It automatically or manually transfers the electrical load between two independent AC power sources (such as utility mains and a standby generator) to ensure continuous power supply for critical equipment. The 3‑pole configuration switches the three phase conductors (L1, L2, L3) without neutral, making it suitable for systems where neutral switching is not required. Auxiliary contacts provide remote status indication and integration with control or monitoring systems. An interlocking mechanism prevents both power sources from feeding the load simultaneously, enhancing safety.
