{"product_id":"siemens-auxiliary-switch-on-the-front-screw-1no-2nc","title":"Siemens Auxiliary switch on the front, screw, 1NO+2NC","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Siemens auxiliary switch on the front, screw, 1NO+2NC, article number 3RH2911-1HA12, is a front-mounted auxiliary contact block designed to extend the control and signalling capabilities of compatible SIRIUS contactors. This auxiliary switch provides a total of three auxiliary contacts consisting of one normally open (NO) and two normally closed (NC) contacts. It mounts on the front of the contactor and uses screw terminals to ensure secure and reliable wiring in industrial automation and motor control applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAuxiliary switch for contactor expansion\u003c\/li\u003e\n\u003cli\u003eFront-side mounting design\u003c\/li\u003e\n\u003cli\u003eContact configuration: 1 normally open (NO) + 2 normally closed (NC)\u003c\/li\u003e\n\u003cli\u003eScrew terminal connections for secure wiring\u003c\/li\u003e\n\u003cli\u003eAdds signalling, feedback, and interlocking capability\u003c\/li\u003e\n\u003cli\u003eCompact design suitable for control cabinet installations\u003c\/li\u003e\n\u003cli\u003eIndustrial-grade construction for reliable operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticle Number:\u003c\/strong\u003e 3RH2911-1HA12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Front-mounted auxiliary switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Configuration:\u003c\/strong\u003e 1 NO + 2 NC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Position:\u003c\/strong\u003e Front of compatible contactor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Type:\u003c\/strong\u003e Screw terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Auxiliary signalling and control contacts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Class:\u003c\/strong\u003e IP20 when installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Environment:\u003c\/strong\u003e Industrial automation systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompliance \u0026amp; Standards\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned in accordance with Siemens requirements for auxiliary contact accessories\u003c\/li\u003e\n\u003cli\u003eSuitable for use in industrial control and automation circuits\u003c\/li\u003e\n\u003cli\u003eMeets applicable low-voltage switching and safety standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Siemens 3RH2911-1HA12 auxiliary switch is used to provide additional normally open and normally closed contacts for signalling and interlocking in control circuits. Typical applications include PLC input feedback, status indication, safety interlocks, and control logic expansion in motor control panels, automation cabinets, and industrial machinery where front-mounted auxiliary contacts are required.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":40775028965440,"sku":"3RH2911-1HA12","price":191.11,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/3662\/3424\/files\/G_NSA0_XX_00534I.jpg?v=1765453952","url":"https:\/\/industrial.rubicon.tech\/products\/siemens-auxiliary-switch-on-the-front-screw-1no-2nc","provider":"Rubicon Group Industrial Technology Shop","version":"1.0","type":"link"}