Hign-concerned Chemical : None Power Source : DC Theory : Solid State Relay Protect Feature : Sealed is_customized : no Usage : General Purpose Contact Load : Low Power Model Number : SSR-40AA 25AA 10AA Voltage : 220V Origin : Mainland China AttentionSolar equipment is a mixed load, we do not recommend using solid state relays.If you want to try, you need to buy a solid state relay with 10 times the current.At the same time, if the solid state relay does not work normally on the solar equipment, we do not provide return service. STEP 1: Choose a correct control Mode AA- AC Control AC DA- DC Control AC DD- DC Control DC VA-Control and Adjust STEP 2: Choose a correct type Current of Equipment/Ratio = Current of SSR PS: The Ratio depend on the kind of your loading equipment. Resistive load :70%, Inductive load:20%,Capacitive load10%. STEP 3: Choose a suitable heat sink. During the useage of SSR, it will give out a lot of heat, so in order to extend the life of your SSR, please install a heat sink , also if the current is over 60A,the cooling fan also required. NOTICE: The inside of the solid-state relay is a semiconductor. A semiconductor switch is a non-physical contact switch. if use a multimeter diode or resistor to test ,it always show a high-impedance state, (multimeter light red). According to the conventional detection methods of solid state relays: a load is required to test the switching state. Using an incandescent lamp as a dummy load is an obvious way to test continuity. window.adminAccountId=239163782;