Feature: 1. [Continuous Power Supply] The automatic transfer switch ensures continuous, reliable, and safe power supply by immediately switching to a backup source when the main power source fails. 2. [Auto Manual Operation] This power transfer switch offers both automatic and manual operation, with millisecond switching speed that ensures uninterrupted power. Isolated anti interference, self switching and self resetting, stable in performance. 3. [Premium Materials] Encased in flame retardant plastic, this dual power switch offers excellent insulation, high temperature resistance, and aging resistance. Silver alloy contacts significantly enhance the conductivity. 4. [External Indicator Compatibility] This 4P ATS features common and backup opening signal output port, which can be connected to an external indicator light for convenient outside the cabinet monitoring. 5. [Wide Application] Useful in various situations that require uninterrupted power supply such as homes, shopping malls, factories, laboratories, and farming sites. Specification: Item Type: Dual Power Automatic Transfer Switch Material: PP flame retardant, silver alloy Use: Automatically switch to backup power during power outage, and switch to main power when power is recovered Operating Frequency: 50 60HZ Rated Current: 100A Number of Poles: 4P Operation Mode: Automatic and Manual Switching Time: