Siemens 3SE2903-1AA20 Switch

The Siemens 3SE2903-1AA20 foot switch is a momentary-contact, one-pedal control designed for industrial automation. It features a robust aluminium enclosure with IP65 protection and a protective cover for harsh environments. The switch configuration provides two normally open and two normally closed contacts (SPST-NO x2 / SPST-NC x2), enabling both make and break circuits in a compact package. Rated for up to 6 A at 230 VAC, it supports reliable switching of typical control circuits and loads with appropriate sizing. A cable entry of M20 x 1.5 complements its rugged build. As a non-latching foot switch, the pedal returns to its resting position when released, making it ideal for momentary actuation in conveyor lines, presses, feeder systems, and other hands-free control tasks. The 3SE2903-1AA20 is associated with Siemens' SIRIUS 3SE29/3SE39 family of foot-operated devices, delivering a durable, multi-contact pedal solution for industrial control applications.