Features 1、Power auxiliary control module, output control signal when power is back on or power failure. 2、Support mains electricity . 3、Each channel of relay can withstand 10A high current output. 4、Low power consumption, high sensitivity, quick response. 5、Applicable to automatic switching of backup power, auxiliary control of hotel control circuit (soft start other equipment). Specification Function: Relay A, B terminals are connected for 0.2S when the mains is back on, and C, D terminals are connected for 0.2S when the mains fails. Power Consumption: <1W Connection Time: 0.2s Output Capacity: A-B, C-D can respectively withstand 10A current. Adapt to automatic switching of standby power, auxiliary control of hotel control circuit (soft start other equipment) Package List 1 x Control Module