Solid State Relay FOTEK SSR-40DA in Pakistan Solid State Relay – SSR-40DA allows you to control high curent AC loads from lower voltage DC control circuitry. Solid state relays have several advantages over mechanical relays. One such advantage is that they can be switched by a much lower voltage and at a much lower current than most mechanical relays, and since there are no moving contacts, solid state relays can be switched much faster and for much longer periods without wearing out.
This particular Solid State Relay can switch current loads of up to 40A with a 3-32V DC input and a zero cross trigger control method. Each one of these relays is equipped with four screw terminals (for use with ring or fork connectors) and a plastic cover that slides over the top of the relay to protect the terminals.