Solid State Relay Features
40AA SSR Specification
Solid State Relay Dimensions
SSR Wiring Diagram
Tips: Installation methods of solid state relays
Horizontal W-type and vertical L-type of solid state relays in small sizes are suitable for direct welding installation on the printed circuit board (PCB). Vertical L2-type is not only suitable for welding installation on circuit board, but also can be applied to socket installation on the circuit board. In the selection of SSRs used in PCB under small current standard, welding temperature should be less than 250 ℃, and time is limited to 10s since the lead terminal is made of high thermal conductivity materials. Given the ambient temperature, derating use can be considered if necessary. The load current is generally controlled within 1/2 of the rated value.K-type and F-type are suitable for installation on radiators and instrument baseplates. In case of high-power SSRs (K-type and F-type package) installation, it should be noted that contact surface with the radiator is smooth, and is coated with thermal grease. The larger the installation torque, the smaller the contact resistance. It is necessary to equip high-current leads with cold welding flakes to reduce contact resistance of the lead wire.
Solid state relay (SSR) is simple but widely used in the automation fields. Thus, it is not complex to wire a solid state relay. In this vedio, ATO takes a 40 Amp SSR (DC - AC) for example to show the wiring of a SSR and then switch on/off a motor with this SSR.
Solid state relay catalog.pdf