Solid State Relays: Type - Solid State Relay; Voltage Rating - Control - 32V DC; Voltage Rating - Load - 280V AC; Current Rating - Load - 20A; Switching Function - Zero Cross; Contact Form - SPST-NO; Mounting - DIN Rail Mount; Terminals - Screw; Voltage Range - Control - 4-32V DC; Voltage Range - Load - 24-280V AC; Current Range - Load - 0.15-20A; Transient Overvoltage Max. - 600V; Dielectric Strength - 4000V AC; Temperature Rating - -40 to 80 deg C (-40 to 176 deg F); Dimensions - nominal - 3.89x3.20x0.88" (99.0x81.3x22.5mm); Additional Information - LED Status Indicator, SSR with Integrated Heat Sink; Manufacturer Series - CKR24 Series