Carlo Gavazzi RGC1A60D25KEM 1-Phase Solid State Contactors 1-pole DIN-rail mount SSR, E-layout, Zero-cross switching with monitoring, Operating voltage (Ue): 150 - 660 Vac (1200 Vp), Rated current (Ie): 25 Aac, Control voltage (Uc): 4 - 32 Vdc, External supply: 24 Vdc, Built-in overvoltage protection