Circuits are identified by color codes and embossed notations Tough GE Noryl , non-conductive, corrosion resistant body Receptacle pins prevent increased resistance due to strand breakage caused by set screws Ring terminals are used to connect wires Internal connections feature a direct wired ground Floating type, cadmium plated brass pins allow best alignment and long-lasting contact with plug We recommend using rubber boots with flush mount receptacles Available in standard and circuit breaker version Meets SAE J560 standards