{"product_id":"siemens-3tx4431-2a-auxiliary-contact-block","title":"Siemens 3TX4431-2A Auxiliary Contact Block","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SIEMENS 3TX4431-2A is an auxiliary contact block designed to expand the switching capability of compatible contactors and relay assemblies. Auxiliary contact blocks add supplementary control contacts to a base contactor, allowing additional control-circuit connections without increasing the contactor footprint. This block is a compact, hard-wired component installed by licensed electricians during panel assembly, motor control center construction, or field contactor servicing. Its small form factor and standardized mounting interface make it a practical addition to existing contactor installations in industrial and commercial electrical systems.\u003c\/p\u003e\n\u003cp\u003eThe 3TX4431-2A is suited for use in motor control, lighting control, and machinery contactor applications where additional auxiliary contacts are required for interlocking, indicator circuits, or control-loop logic. It is typically installed in commercial and light industrial environments alongside Siemens contactor assemblies. Electricians and controls technicians working on motor starters, HVAC packaged equipment control panels, or automated machinery will encounter this type of auxiliary block as a standard expansion component.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAuxiliary contact block expands control-circuit switching points on compatible base contactors\u003c\/li\u003e\n  \u003cli\u003eCompact dimensions of 1.654 x 1.732 x 2.244 inches allow installation in tight panel spaces\u003c\/li\u003e\n  \u003cli\u003eLightweight construction at 0.108 pounds minimizes added load on contactor assembly\u003c\/li\u003e\n  \u003cli\u003eSnap-on or screw-mount interface typical of Siemens modular contactor accessories\u003c\/li\u003e\n  \u003cli\u003eSuitable for control-circuit interlocking, status indication, and logic inputs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style auxiliary contact block expansion accessory for compatible Siemens contactor platforms. Verify base contactor model acceptance of this auxiliary block before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified electrician in accordance with NEC requirements and the contactor manufacturer's wiring diagrams. De-energize and lock out the contactor assembly fully before attaching or removing any auxiliary contact block. Confirm the auxiliary block is fully seated and mechanically secured to the base contactor before restoring power. Do not exceed the control-circuit voltage and current ratings marked on the assembly.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions (L x W x H)\u003c\/strong\u003e: 1.654 x 1.732 x 2.244 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.108 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 75455420317\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: 3TX4431-2A\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SIEMENS","offers":[{"title":"Default Title","offer_id":51383341121842,"sku":"3TX4431-2A","price":86.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312676713.jpg?v=1782593850","url":"https:\/\/voomisupply.com\/products\/siemens-3tx4431-2a-auxiliary-contact-block","provider":"Voomi Supply","version":"1.0","type":"link"}