The KA58HFY is a 2A, 250Vrms AC solid-state relay designed for reliable power switching. It operates over a 40 to 440 Hz frequency range and provides 1250 Vrms of optical isolation between the input and output. A key feature is its integrated thermal protection, which shuts down the output in a thermal runaway condition and provides a TRIP status output to indicate this state. The relay handles a continuous load current of 2.0 Arms and operates from -55°C to +110°C. Housed in a hermetically sealed package, it is ideal for high-reliability systems requiring enhanced diagnostic capabilities.