Siemens 40DP32AJ Contactor

Siemens 40DP32AJ is a non-reversing NEMA Size 1 three-pole contactor with an open enclosure (OPN) and a 24V control coil. The SZ1, 3PH, OPN designation in the model line identifies it as a compact, three‑phase control device intended for standard open installations. It is rated for three‑phase main circuits up to 600 V and provides a continuous load current rating of 27 A, making it suitable for switching motors, fans, and pumps in light- to medium-duty industrial equipment. As part of the DP contactor family, the 40DP32AJ shares Siemens’ common sizing and mounting footprint, enabling straightforward integration with compatible control circuits in a wide range of applications.