Features Efficient Power Management: The dual power automatic transfer switch ensures seamless switching between power sources, providing reliable energy supply for uninterrupted Versatile Modes: This changeover switch features both manual and automatic functions, allowing flexibility in power management for various applications Enhanced Stability: Crafted with superior materials, this automatic transfer switch offers excellent isolation and anti-interference capabilities, ensuring consistent performance in demanding environments Features: 1、[Changeover Switch] Double power automatic transfer switch is composed of two units of miniature circuit breakers and auxiliary, alarm s, mechanical interlock transmission, controller and other components. 2、[Multiple Functions] Automatic transfer switch with mechanical, electrical interlock function, can be manually or automatically powered, universal and standby circuit breaker rated current can be different. 3、[Anti Interference] The automatic transfer switch is manufactured by superb craftsmanship, isolation anti interference, stable performance, and use with confidence. 4、[Simple Structure] The switch is small in size, simple in structure, driven by a single motor, smooth, noiseless and low impact. 5、[Display Panel] The switch has a variety of indications on the display panel to reflect the breaker status and is widely used in homes and shopping malls. Specification: Item Type: Dual Power Automatic Transfer Switch Material: ABS, aluminum alloy Rated Current: 125A Handle Color: Red Rated Voltage: 400V AC Frequency: 50Hz Pole Speed: 2P Rated Impulse Withstand Voltage: 4 (KV) Insulation Voltage: 4000 (V) Working Principle: This series of dual power supply controller and drive mechanism power supply signal depends on the A phase and N line of the common switch or standby switch inlet port. Dual power supply in the automatic state, when the incoming phase A and N common switch voltage is normal (AC190-240V), regardless of whether the common power supply B.C and standby switch a.b.c, N voltage is normal or not, the common switch will be closed in priority. At the same time, the power supply indicator and the common off indicator light up. When the incoming public switch A phase and line N have no voltage, and the incoming standby switch A phase and line N have normal voltage, regardless of whether the normal switch B and standby switch C have normal voltage, Package List 1 x Dual Power Automatic Transfer Switch 1 x Instruction