TE Connectivity MCP 1.5K Receptacle InsertsMCP 1.5K unsealed receptacle inserts made from PBT-GF20. These MCP 1.5K receptacle housings accept a wire size range of 1.5mm2 FLR max and are for use with MCP 1.5K carrier housings (see stock number 726-8913 typically). Stock number 726-8953 has A type keying.TE Connectivity Multiple Contact Point System (MCP)