4.750" overall length 3.000" overall width elec rating 28 vdc max rated voltage, 1 amp resistive current rating; motor 105-125 vac, 380-420 hz; 2 terminals for motor/3 for contacts; rated operating time 600 sec (porm 120 sec) , release time 300 sec (porm 60 sec) ; hermetically sealed; four 8-32thd mtg holes on 2.000 x 4.250 in. mtg ctrs; special features:2 terminals for holding clutch