Solid State Relay SSR-40DD 40A DC to DC Input 3-32VDC to Output 12-220VDC Single Phase Plastic Cover

Choose a correct Current type Current of SSR=Current of Equipment*magnification PS: The magnification depend on the kind of your loading equipment. Resistive load :2 to 3 times Inductive load: 6 to 7 times Capacitive load:10 times The start-up current of capacitive and inductive loads is very large?Make sure you the kind of your loading equipment and choose carefully About the choice of heat dissipation and radiator Even with the same load, the more frequently the solid state relay is switched on and off, the more heat is generated. Please make sure that the SSR is in a good heat dissipation environment, choose a suitable heat sink, and ensure that it works within 158°F (70°C).