{"product_id":"siemens-3rh1911-1fa31-auxiliary-contact-block","title":"Siemens 3RH1911-1FA31 Auxiliary Contact Block","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SIEMENS 3RH1911-1FA31 is an auxiliary contact block designed to expand the switching capacity of compatible contactors and relay assemblies in industrial control applications. This block provides three normally open (NO) and one normally closed (NC) contact configuration, referenced by the AL92F3 designation. Electrical control technicians and industrial electricians install this block as a side-mount or front-mount add-on to existing motor starters or control relays where additional signal or interlocking contacts are required. At 0.097 pounds and compact dimensions, it fits into tight panel layouts without adding significant bulk.\u003c\/p\u003e\n\u003cp\u003eThis auxiliary contact block is used in industrial and commercial electrical control panels, motor control centers, and automation enclosures where supplemental switching contacts are needed. Typical applications include interlocking circuits, status feedback wiring, PLC input signals, and safety shutdown logic. It is intended for installation by qualified electricians or industrial controls technicians working on low-voltage control circuit wiring.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3 NO \/ 1 NC contact configuration (AL92F3) for flexible interlocking and feedback wiring\u003c\/li\u003e\n  \u003cli\u003eCompact form factor at 1.654 inches x 1.732 inches x 2.244 inches\u003c\/li\u003e\n  \u003cli\u003eLightweight construction at 0.097 pounds for space-constrained panel installations\u003c\/li\u003e\n  \u003cli\u003eDesigned as an add-on auxiliary block for compatible Siemens contactor and relay platforms\u003c\/li\u003e\n  \u003cli\u003eSupports supplemental switching functions without replacing the primary contactor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style auxiliary contact block for use with compatible Siemens contactors and control relays. No specific model compatibility data was provided in the product input; verify fitment against the target contactor series before ordering.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified electrician in accordance with applicable NEC requirements and the equipment manufacturer's wiring diagrams. De-energize and lock out the control panel before attaching or removing any auxiliary contact block. Confirm that the contact block snaps fully and securely onto the contactor or relay before restoring power. Do not exceed the rated switching capacity of the contact block for the intended circuit.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContact Configuration\u003c\/strong\u003e: 3 NO \/ 1 NC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions (L x W x H)\u003c\/strong\u003e: 1.654 inches x 1.732 inches x 2.244 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.097 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 75455441581\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SIEMENS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 3RH1911-1FA31\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SIEMENS","offers":[{"title":"Default Title","offer_id":51383432610098,"sku":"3RH1911-1FA31","price":91.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312678832.jpg?v=1782596410","url":"https:\/\/voomisupply.com\/products\/siemens-3rh1911-1fa31-auxiliary-contact-block","provider":"Voomi Supply","version":"1.0","type":"link"}