2.720" overall length 2.720" overall width elec ratings, ac, 250v max rated voltage, 5 amp res curr rating at max rated voltage, dc, not rated for voltage, 5 amp max res curr rating, 28v rating at max rated curr; motor 120 vac, 60 hz; 2 terminals for motor/6 for contacts; dustproof; four 0.166 in. dia mtg holes spaced on 2.156 x 2.156 in. mtg ctrs