{"product_id":"siemens-3tf4222-0a-contactor-relay-with-solid-state-overload-relay","title":"Siemens 3TF4222-0A Contactor Relay With Solid State Overload Relay","description":"\u003cdiv\u003e\u003cp\u003eSiemens 3TF4222-0A Contactor Relay with Solid State Overload Relay combines a three-pole power contactor with an integrated 3UA52-00-2A solid-state overload relay, delivering starter and motor-protection functionality in one compact unit. Intended for three-phase motors, the 3UA52-00-2A overload provides current-based protection for loads in the 10–16 A range and is specified for use in circuits up to 600 VAC. This configuration simplifies wiring and maintenance by providing switching and overload protection in a single device, aligned with Siemens' 3TF\/3UA product families. Typical applications include industrial machinery, conveyors, pumps, and fans where reliable motor protection and quick control are required. With the solid-state overload relay integrated, the unit offers fast response to overload conditions and consistent protection across duty cycles, while the 3TF-series contactor portion handles the motor start\/stop switching. The 3TF4222-0A model designation identifies the exact combination of contactor and overload relay, enabling straightforward replacement in legacy Siemens installations that rely on the 3TF4 family paired with 3UA52 overload protection. This product is aimed at users seeking a single, integrated solution rather than separate contactor and overload components, reducing cabinet space and simplifying routine control-panel assembly.\u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46268170010858,"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-3tf4222-0a-contactor-relay-with-solid-state-overload-relay","provider":"GTG Hardware","version":"1.0","type":"link"}