{"product_id":"thomas-betts-8420-conduit-coupling-1-1-4-in-rigid-imc","title":"Thomas Betts 8420 Conduit Coupling 1-1\/4 in Rigid Imc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe THOMAS BETTS 8420 is a malleable iron compression conduit coupling designed for use with rigid metal conduit (RMC) and intermediate metal conduit (IMC) at a 1-1\/4 inch trade size. The compression connection style provides a secure, concrete-tight fit without threading, making it a reliable choice for installations where conduit must be joined cleanly and quickly. This coupling is non-insulated and rated for concrete-tight applications, meaning it maintains a tight seal even when embedded in or routed through concrete structures. Electricians rely on this fitting type in commercial and industrial conduit runs where code-compliant mechanical integrity is required.\u003c\/p\u003e\u003cp\u003eThis coupling is suited for commercial, industrial, and residential electrical installations where rigid or IMC conduit systems are specified. Compression-style couplings are commonly used in exposed conduit work, underground applications, and concrete-encased raceways. The concrete-tight area of application rating makes the 8420 appropriate for slab and foundation conduit installations where moisture intrusion must be controlled and mechanical protection is critical.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCompression connection type — no threading required for a secure joint\u003c\/li\u003e\n\u003cli\u003eConcrete-tight area of application rating for embedded and wet-location conduit runs\u003c\/li\u003e\n\u003cli\u003eMalleable iron construction for durability in demanding installation environments\u003c\/li\u003e\n\u003cli\u003eCompatible with both rigid metal conduit and intermediate metal conduit (IMC)\u003c\/li\u003e\n\u003cli\u003eNon-insulated design for standard conduit coupling applications\u003c\/li\u003e\n\u003cli\u003e1-1\/4 inch trade size for mid-range conduit system configurations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with 1-1\/4 inch trade size rigid metal conduit (RMC) and intermediate metal conduit (IMC) in compression-fit conduit systems.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize all circuits before working on or near the conduit system. Compression couplings require proper seating of the conduit ends and tightening of the compression nut to achieve a concrete-tight seal — do not overtighten, as malleable iron fittings can crack under excessive torque. Inspect conduit ends for burrs or damage before assembly to ensure a clean, secure connection.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Type\u003c\/strong\u003e: Coupling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor Conduit Type\u003c\/strong\u003e: Rigid Metal Conduit (RMC), Intermediate Metal Conduit (IMC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrade Size\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: Compression\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Malleable Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation\u003c\/strong\u003e: Non-Insulated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArea of Application\u003c\/strong\u003e: Concrete Tight\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: THOMAS BETTS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 8420\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"THOMAS \u0026 BETTS","offers":[{"title":"Default Title","offer_id":51541441216818,"sku":"8420","price":252.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ad603ddfd5eff8c5db3331ffd9dd446a.jpg?v=1785876252","url":"https:\/\/voomisupply.com\/products\/thomas-betts-8420-conduit-coupling-1-1-4-in-rigid-imc","provider":"Voomi Supply","version":"1.0","type":"link"}