Gtsr38 is a small high-power solid-state relay, with input control voltage of (3~32) VDC or (90~280) VAC, output of which adopts one-way thyristor anti parallel, high resistance to dv/dt, current ranging from (10~100) a, and output voltage range of (48~600) vac. Photoelectric isolation is adopted between input and output, and the dielectric withstand voltage reaches 4000vac. Epoxy resin potting, overall dimension: 58.4mm × 45.7mm × 22.9mm。