• Pin and sleeve design: solid brass pressure wire terminal contacts with beryllium copper springs
— Energized contacts deeply recessed to reduce danger of accidental touching, minimize possibility of exposed arcs. Insulator quenches arcing, and is resistant to abnormal heat and
to fire.
— Plug mechanical cable clamps provide strain relief conductor connections, allow easy cable replacement.
— Pressure wire terminals allow cable to be readily replaced when necessary. Terminal screws grip conductors firm.
— Plug—Equipment grounding conductor is wired directly to solderless lug which is connected to the plug housing with a pressure connector. All terminals are “current carrying”.
— Receptacle—Two detent spring clips engage the grounded plug housing on plug insertion—grounded plug shell makes contact with receptacle ground spring before line and load poles are engaged.
Grounding path is maintained until after current-carrying contacts disengage. All terminals are “current carrying”.
— Plug—Equipment grounding conductor is not only connected to the solderless lug in the plug housing, but also to an extra grounding pole. Grounding pole has copper alloy grounding jumper strap that
connects to plug housing.
— Receptacle—Two detent spring clips engage grounded plug housing on plug insertion. Jumper from extra grounding pole is electrically connected to a screw on receptacle housing. Longer grounding
pole “makes first and breaks last”

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