18 mm Pin Spacing. Metric 16 cable entry -  Accommodates 4.5 mm to 10 mm cable. 2 poles + ground, black housing, bridge-type rectifier with protective circuit (varistor). Includes connector, gasket & center screw.

18mm pin spacing, PG11 cable entry Accommodates 5 mm to 10 mm cable. 2 poles + ground Black Housing. 2 poles + ground, black housing, bridge-type rectifier with protective circuit (varistor). Includes connector, gasket & center screw.

18mm pin spacing, PG11 cable entry Accommodates 5 mm to 10 mm cable. 2 poles + ground, clear housing, bridge-type rectifier with protective circuit (varistor) and indicator light.  Includes connector, gasket & center screw. Note: gland, grommet & ring are not included