What This M12 D-Coded Receptacle Is
The T4111512041-000 is an M12 D-coded receptacle with male pins — an unusual configuration where the receptacle body carries the male contacts instead of the usual female sockets. This means the mating half must be a female-pin plug (not a standard male connector). The D-coding is specific to industrial Ethernet protocols like Profinet and EtherNet/IP, preventing cross-mating with A-coded (sensor/actuator) or B-coded (fieldbus) M12 connectors.
Four gold-plated male pins rated 4A per contact at 250V — adequate for powering a sensor or carrying PoE (Power over Ethernet) alongside data. The cable opening range of 0.236" to 0.315" (6.00mm to 8.00mm) accepts common industrial Ethernet cable diameters; the screw termination lets you land each conductor without a crimp tool.
D-Coding vs Standard A-Coded M12 — Why It Matters
A standard M12 A-coded 4-pin receptacle (used for sensors and actuators) has a different keying position than this D-coded version. The D-coding uses a specific keyway that only accepts D-coded plugs — you cannot accidentally plug an A-coded cordset into this receptacle, which prevents wiring errors on Ethernet networks.