Eliminate need for adding sealing fittings and compound at each conduit entrance|Heavy duty pushbutton|Dozens of possible combinations of push buttons, pilot lights and selector switches|Smooth, rounded integral bushing in each EFD/EFDB hub protects conductor insulation|Accurately tapped, tapered hubs for tight, rigid joints and ground continuity|Stainless steel pushbutton shaft operates within stainless steel bushing assuring long, maintece free operation|Pushbutton and selector switch contacts are silver cadmium oxide which are sealed in lower phenolic chamber isolated from corrosive elements. Assures positive contact and long, trouble free operation|Enclosed stainless steel helper spring prevents accidental operation of pushbutton in severe vibration installations|Pushbutton models also available with dust cap for use in areas where excessive dust, moisture or corrosive conditions are encountered|Corrosion resistant captive stainless steel hex head cap screws hold EFKB covers to body|All EFD/EFDB momentary push buttons are supplied with lockout type guards as standard, hole in guard will accept locks with up to 1/4 in hasp, permits locking of pushbutton to prevent unauthorized operation|Clearly marked terminals with brass screws assure quick, easy wiring