Finish is epoxy powder coat for enhanced corrosion resistanceLarge back box for ample wiring roomGround screw installed in bodies for ground continuityCorrosion resistant stainless steel hexagonal head captive screws hold covers to bodyFactory sealed enclosure eliminates need for adding sealing fittings and compound at each conduit entranceFactory sealed pilot lights supplied with jewel/guard assembly and 120 VAC/VDC, 50/60 Hz, 6 W lamp (LED provided as option)Dozens of possible combinations of push buttons, pilot lights and selector switchesAccurately tapped, tapered hubs for tight rigid joints and ground continuityStainless steel pushbutton shaft operates within stainless steel bushing assuring long, maintenance free operationSmooth, rounded integral bushing in each hub protects conductor insulationPushbutton and selector switch contacts are silver cadmium oxide which are "sealed" in lower phenolic chamber isolated from corrosive elementsAssures positive contact and long, trouble free operationEnclosed stainless steel helper spring prevents accidental operation of pushbutton in severe vibration installationsAll momentary push buttons are supplied with lockout type guards as standardHole in guard will accept locks with up to 1/4 in haspPermits locking of pushbutton to prevent unauthorized operationClearly marked terminals with brass screws and spade terminals assure quick, easy wiring