M12 D-Coded Plug for Sealed Industrial Harnesses
The T4131512021-000 is a 2-position M12 plug with female sockets, designed for industrial sensor/actuator networks and fieldbus cabling where a compact, sealed circular interface is required. It carries a 4A per-contact rating at 250V, with IP67 sealing against dust and water ingress when mated to the matching receptacle. The D-coded orientation prevents cross-mating with A-, B-, or L-coded M12 connectors, enforcing the correct pin assignment for Profibus or similar networks.
What the 4A and IP67 Ratings Mean for the Install
At 4A per contact, this plug handles the power and signal needs of a typical M12 sensor or actuator drop — the 2-position count limits it to a single power pair or a signal loop, not a multi-conductor bus. The nickel-plated copper alloy shell and PA66 insert with UL94 V-0 rating meet enclosure fire-safety requirements for equipment installed inside a control cabinet.
Termination and Mounting Detail
Termination is through solder cups — one per contact — suited for field wiring or bench assembly with a soldering iron and heat-shrink over each cup. The connector mounts in a panel cutout via a bulkhead front-side nut, with the shell grounded through the panel when the nut is torqued.