CARLO GAVAZZI RZ3A60A55 3-Phase Solid State Relay, Maximum 55 amp AC Switching, 24-275 VAC or 24-50 VDC Control Voltage, 42-660 VAC Switching, 1600Vp Blocking Voltage, IP10 Cover, Diagnostic LED, 12.9 oz. Size, 45 mm Height x 110 mm Width x 80 mm Diameter 3-Phase Solid State Relay Up to 600VAC Switching Up to 55A Switching Diagnostic LED IP20 Touch safe Cover