Magenetic size (mm): 300 * 42. 5*26 Armature size (mm) : 185*38*11 holding Force : 600lbs / 300 kgs Voltage/Current : 12V/500mA, 24V/250mA Relay dry contact rating : 500mA, 24VDC/AC Unit Weight (Approx. ): 2. 5 kg