{"product_id":"siemens-auxiliary-switch-on-the-front-spring-loaded-1no-1nc","title":"Siemens Auxiliary switch, on the front, spring loaded, 1NO+1NC","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Siemens Auxiliary switch, on the front, spring loaded, 1NO+1NC (3RH2911-2HA11) is a reliable and compact front-mounted accessory for Siemens SIRIUS contactors and relays. Designed for easy installation, it provides one normally open and one normally closed contact for additional control or signaling functions. The spring-loaded design ensures secure contact engagement, making it ideal for industrial automation and control panel applications requiring durable and accurate auxiliary switching.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFront-mounted auxiliary switch for Siemens SIRIUS contactors\u003c\/li\u003e\n\u003cli\u003eContact configuration: 1 Normally Open (1NO) + 1 Normally Closed (1NC)\u003c\/li\u003e\n\u003cli\u003eSpring-loaded mechanism for precise and reliable operation\u003c\/li\u003e\n\u003cli\u003eQuick and tool-free snap-on installation to the front of contactors\u003c\/li\u003e\n\u003cli\u003eCompact design with high mechanical endurance for frequent switching cycles\u003c\/li\u003e\n\u003cli\u003eDurable construction suitable for industrial environments\u003c\/li\u003e\n\u003cli\u003eCompliant with international control circuit standards for auxiliary switching\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\u003eProduct Series:\u003c\/strong\u003e SIRIUS Auxiliary Switches (3RH2 range)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticle Number:\u003c\/strong\u003e 3RH2911-2HA11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Configuration:\u003c\/strong\u003e 1NO + 1NC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Front-mounted on compatible contactors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Mechanism:\u003c\/strong\u003e Spring-loaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Operating Voltage (Ue):\u003c\/strong\u003e up to 690 V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Current (Ie):\u003c\/strong\u003e up to 10 A (AC-12 duty)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitching Capacity:\u003c\/strong\u003e 3 A at AC-15 (230 V AC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Durability:\u003c\/strong\u003e Up to 200,000 switching operations (AC-15)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Endurance:\u003c\/strong\u003e Up to 10 million operations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Class:\u003c\/strong\u003e IP20 (with front-mounted installation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmbient Operating Temperature:\u003c\/strong\u003e –25 °C to +60 °C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompliance \u0026amp; Certifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufactured by Siemens under the SIRIUS modular control system\u003c\/li\u003e\n\u003cli\u003eComplies with IEC\/EN 60947-5-1 for auxiliary switching devices\u003c\/li\u003e\n\u003cli\u003eCE and UL certified for global industrial applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIdeal for use in control and automation systems requiring additional signaling or interlocking functions. Common applications include motor control centers, switchgear panels, and automated machinery where auxiliary switching feedback is required for monitoring and control logic. The robust design ensures dependable performance in demanding industrial environments.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":40775085195328,"sku":"3RH2911-2HA11","price":130.79,"currency_code":"ZAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/3662\/3424\/files\/G_NSA0_XX_00562I.jpg?v=1761056012","url":"https:\/\/industrial.rubicon.tech\/products\/siemens-auxiliary-switch-on-the-front-spring-loaded-1no-1nc","provider":"Rubicon Group Industrial Technology Shop","version":"1.0","type":"link"}