{"product_id":"siemens-auxiliary-switch-block-spring-2no-2nc","title":"Siemens Auxiliary switch block, spring, 2NO + 2NC","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Siemens 3RH2911-2FA22 is a front-mount auxiliary switch block designed for use with Siemens SIRIUS 3RH2 contactor relays. It provides additional auxiliary contacts (2 Normally Open + 2 Normally Closed) for signalling, interlocking, feedback, and control logic expansion within industrial control systems. Compact and easy to install, it enhances functionality without increasing system footprint, making it ideal for motor control and automation applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAuxiliary switch block for SIRIUS 3RH2 contactors\/relays\u003c\/li\u003e\n\u003cli\u003eContact configuration: 2 NO + 2 NC\u003c\/li\u003e\n\u003cli\u003eFront clip-on mounting — no tools required for installation\u003c\/li\u003e\n\u003cli\u003eHigh switching endurance for long operational life\u003c\/li\u003e\n\u003cli\u003eSuitable for signalling, status indication, and control-circuit expansion\u003c\/li\u003e\n\u003cli\u003eSpring clamp terminals for fast and reliable wiring\u003c\/li\u003e\n\u003cli\u003eCompact design — minimal panel space required\u003c\/li\u003e\n\u003cli\u003eRated insulation voltage up to 690 V\u003c\/li\u003e\n\u003cli\u003eSurge voltage resistance 6 kV — industrial grade robustness\u003c\/li\u003e\n\u003cli\u003eMechanical lifespan up to ~10 million switching cycles\u003c\/li\u003e\n\u003cli\u003eElectrical lifespan approx. 200,000 operations (AC-15)\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 3RH2911-2FA22\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Auxiliary Contact Block\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Configuration:\u003c\/strong\u003e 2 NO + 2 NC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Front-mounted onto 3RH2 series contactors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminals:\u003c\/strong\u003e Spring clamp type\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Insulation Voltage:\u003c\/strong\u003e 690 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurge Withstand Voltage:\u003c\/strong\u003e 6 kV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Durability:\u003c\/strong\u003e ~10 million operations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Durability:\u003c\/strong\u003e ~200,000 operations (AC-15)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Rating:\u003c\/strong\u003e IP20 (front)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Weight:\u003c\/strong\u003e approx. 0.062 kg\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\u003eCompatible with Siemens SIRIUS 3RH2 and selected 3RT contactor systems\u003c\/li\u003e\n\u003cli\u003eDesigned and tested for industrial auxiliary switching applications\u003c\/li\u003e\n\u003cli\u003eConforms to IEC-based contactor and control-accessory standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIdeal for expanding auxiliary contact availability in control circuits. Common uses include feedback indication, interlocking, PLC signalling, motor starter logic, HVAC control, conveyors, pumps, fans, and general panel automation. Enables additional monitoring or logic connections without requiring external relays or redesign of the control layout.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":40775035387968,"sku":"3RH2911-2FA22","price":164.05,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/3662\/3424\/files\/G_IC03_XX_02636I.jpg?v=1761055950","url":"https:\/\/industrial.rubicon.tech\/products\/siemens-auxiliary-switch-block-spring-2no-2nc","provider":"Rubicon Group Industrial Technology Shop","version":"1.0","type":"link"}