The Micro‑DC (MDC) series, also known as Micro‑change or M12, is one of the most widely used industrial quick disconnects in the industrial market. Despite the name, these euro‑style connectors can be used in either AC or DC applications. They are commonly used in factory automation for items such as sensors, actuators, motors, switches, safety light curtains, mats, and interlock switches to name a few. The MDC series has a single keyway which is known as A‑coded. The commonly used industry term “M12” is in reference to the coupling thread used to connect the MDC cables to the mating receptacles. The MDC product is offered in 2–8 and 12 pole configurations with a variety of outer jacket materials, and other options. The euro color code (without a ground wire) and the single keyway (A‑Coded) distinguish the MDC from other connectors that are similar in size and function.
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