Item Type: Relay Module_x000D_Material: Copper Clad Laminate_x000D_Module Size: Approx. 129x72x22mm/5.1 x 2.8 x 0.9in_x000D_Installation Size: Approx. 124 x 67mm/4.9 x 2.6in_x000D_Quiescent Current: 5mA_x000D_Trigger Current: 2-4mA_x000D_Trigger Mode: High/Low Level Trigger_x000D_Load Current: 30A_x000D_Maximum Load: DC 30V / AC 250V 1Each channel of the relay module is equipped with a relay LED indicator to show the switch status of the channels. 2This is a relay that can withstand high power, and its maximum load control can be up to 30A. 3The use of patch optocoupler isolation design makes the 4channel relay module powerful and more stable in performance. 4Used in PLC automation equipment control, industrial control, Internet of Things control, experimental development, circuit modification. 5Exquisite workmanship enables this relay module to work stably and accurately, and makes it a perfect substitute.1 x Relay ModuleThe module power supply voltage must be DC and consistent with the working voltage of the relay.