The Siemens 3RK2400-1DQ00-1AA3 is a K60 compact digital I/O module designed for field-mounting in IP67 environments. It provides 4 PNP inputs and 4 outputs, each accessible via M12 sockets, with a built-in watchdog, short-circuit protection, and induction protection. The module requires an external AUX POWER supply of 20 to 30 V DC for the output circuits, which must comply with VDE 0106 (PELV), protection class III. The input circuit itself operates on PNP transistors within the same voltage range.
Rated IP67, this module is suited for direct mounting on machinery or in wet/washdown zones without an enclosure. Dimensions are 60 mm wide, 152 mm high, and 29 mm deep. The 8 M12 sockets are pre-assigned: sockets 1-4 handle inputs (IN1 through IN4), and sockets 5-8 handle outputs (OUT1 through OUT4). Each socket's PIN 5 is a ground terminal tied to the mounting plate's grounding wrist strap via a pin.