SSR-40 DA is a single phase solid-state relay that uses DC controlled AC, with a control voltage of DC 3-32V, a load voltage of 24-380VAC, and a load current of 40A.
Equipped with an overheat protection circuit, it can prevent overheating damage, withstand instantaneous currents exceeding the rated current by more than 10 times, effectively prevent surge damage.
High sensitivity, low control power, and good electromagnetic compatibility.
Using solid-state devices, the switching speed is fast, ranging from a few milliseconds to a few microseconds, and the electromagnetic interference is small, resulting in fewer switching transient effects.
Widely used in automation control devices such as transformer, transmission line overload, motors, and short-circuit protection.