The H12WD4850 is a Solid State Relay with aluminium base plate, 94V-0 housing, SPST-NO contact, zero crossing switching mode and screw terminals. This H12WD-series panel mount relay features improved SEMS screw and washer, redesigned housing with anti-rotation barrier. Low off-state leakage current (snubberless). Direct bond copper substrate and direct power lead frame. EMC compliant to level-3.