{"product_id":"siemens-3se03-at3-limit-switch-push-roller-spring-return","title":"Siemens 3SE03-AT3 Limit Switch Push Roller Spring Return","description":"\u003cdiv\u003e\u003cp\u003eSiemens 3SE03-AT3 is a limit switch with a roller-top plunger and spring-return action, configured as 1 NO and 1 NC contact. The AT3 variant specifies a roller top actuator and momentary (spring-return) operation, designed for end-of-travel and position sensing in industrial equipment. Actuation is provided by a roller plunger that engages when a moving part reaches a stop and then returns to the home position automatically. As part of the 3SE03 family, the AT3 is compatible with Siemens plug-in module\/receptacle systems (EN50041-based), enabling straightforward field replacement and integration in control panels. This configuration—roller top plunger, momentary action, 1NO + 1NC contacts—offers a compact, reliable solution for mechanical limit sensing in conveyors, presses, and machinery where precise travel detection is required. \u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46268150055146,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-017.png?v=1788727429","url":"https:\/\/gtghardware.com\/products\/siemens-3se03-at3-limit-switch-push-roller-spring-return","provider":"GTG Hardware","version":"1.0","type":"link"}