The PT03SE-12-3P(027) from Amphenol Industrial Operations is wall mount circular connector (MIL-DTL-26482 Series I), receptacle with male pins, 3 position, shell size-insert 12-3 and crimp termination. This is connector with bayonet lock fastening and environmental (no clamp) endbell. The PT03SE-12-3P(027) has copper alloy contacts with gold finish, neoprene insert and aluminum shell with conductive black alloy (RoHS) finish. Operating temperature range is from -55°C to 125°C.