Carlo Gavazzi RF1A23D25 SSR 1-pole panel mount SSR, Zero-cross switching, Operating voltage (Ue): 24 - 280 Vac (600 Vp), Rated current (Ie): 25 Aac, Control voltage (Uc): 18 - 28.8 Vdc, Built-in overvoltage protection, Certified (EN60335-1), Packed x10