{"product_id":"thomas-betts-guax37-tb-round-iron-electrical-box-hazardous-location","title":"Thomas Betts GUAX37-TB Round Iron Electrical Box Hazardous Location","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe THOMAS BETTS GUAX37-TB is a round, iron electrical box designed for use in hazardous location wiring systems. Built with a zinc-plated iron body, it measures 3.5 inches in overall width and 2.31 inches in overall depth. The box includes four 1-inch knockouts and comes with internal ground screws. It meets UL 514A, UL 886, and CSA C22.2 No. 30 certifications, making it suitable for classified environments where ignition risk and environmental exposure are primary concerns. Licensed electricians working in industrial, commercial, or heavy-duty facilities typically specify this box for conduit wiring in rated hazardous zones.\u003c\/p\u003e\u003cp\u003eThis box is rated for Class I Divisions 1 and 2 Groups C and D, Class II Division 1 Groups E, F, and G, and Class III Divisions 1 and 2. It carries NEMA 7 CD, NEMA 9 EFG, NEMA 3, and NEMA 4 ratings, covering a wide range of hazardous and wet-location installation scenarios. Typical applications include industrial facilities handling flammable vapors, combustible dusts, or ignitable fibers, as well as outdoor installations requiring weathertight enclosures. The non-weather-resistant designation applies to the box interior only; NEMA 3 and NEMA 4 ratings address external environmental exposure.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRound iron body with zinc-plated finish for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eFour 1-inch knockouts for flexible conduit entry configuration\u003c\/li\u003e\n\u003cli\u003eInternal ground screws included\u003c\/li\u003e\n\u003cli\u003eRated NEMA 3, NEMA 4, NEMA 7 CD, and NEMA 9 EFG\u003c\/li\u003e\n\u003cli\u003eListed to UL 514A and UL 886 under UL File 202368\u003c\/li\u003e\n\u003cli\u003eCSA Certified to CSA C22.2 No. 30\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style hazardous location electrical box compatible with standard 1-inch trade size conduit fittings in Class I, II, and III classified installations.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes governing hazardous locations. De-energize all circuits before opening or wiring the box. Verify the area classification and NEMA rating requirements match the installed environment before proceeding. Do not use in applications outside the listed hazardous location classifications without consulting the manufacturer documentation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Box Type\u003c\/strong\u003e: GUAX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc-Plated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Width\u003c\/strong\u003e: 3.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Depth\u003c\/strong\u003e: 2.31 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Knockouts\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnockout Trade Size\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes\u003c\/strong\u003e: Internal Ground Screws\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNEMA Ratings\u003c\/strong\u003e: NEMA 3, NEMA 4, NEMA 7 CD, NEMA 9 EFG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHazardous Location Class\u003c\/strong\u003e: Class I Div 1 and 2 Groups C and D; Class II Div 1 Groups E, F, and G; Class III Div 1 and 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: UL 514A, UL 886, UL File 202368, UL Listed, CSA C22.2 No. 30, CSA Certified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather Resistance\u003c\/strong\u003e: Non-Weather-Resistant (interior)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 3.42 pounds\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: GUAX37-TB\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"THOMAS \u0026 BETTS","offers":[{"title":"Default Title","offer_id":51541919007026,"sku":"GUAX37-TB","price":264.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ee921dbe329fe7addba93e124b5e83f0.jpg?v=1785887780","url":"https:\/\/voomisupply.com\/products\/thomas-betts-guax37-tb-round-iron-electrical-box-hazardous-location","provider":"Voomi Supply","version":"1.0","type":"link"}