The Mencom MAC-3FR-M20 Micro AC (1/2-20) female straight receptacle features a 3 Pin insert, 22 AWG wire, 12" lead length and M20 mounting thread. The shell is clear anodized aluminum with gold plated copper alloy contacts. Wire is rated at 300V. Rated IP 69. Operating temperature -40 C to 105 C (-40 F to 221 F). Mencom MAC receptacles have 1/2-20 coupling thread with a dual C-coded keyway. They are similar to the MDC M12 receptacles, however they do have a different wiring color code.