Siemens 40DP107569 is an SZ.1-size, three-pole open electromechanical contactor designed for switching three-phase motors in industrial control panels. It belongs to the Siemens SZ contactor family and is used for motor-start control in industrial machinery, often with auxiliary contact blocks for signaling and interlocking. The 40DP107569 designation identifies the SZ.1 3-pole model in distributor catalogs and denotes an open-frame, non‑enclosed design. Typical applications include conveyors, pumps, and fans where reliable, remote switching of a three-phase load is required.
