{"product_id":"thomas-betts-54138-square-ring-terminal-4-awg-crimp","title":"Thomas Betts 54138 Square Ring Terminal 4 Awg Crimp","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe THOMAS BETTS 54138 is a non-insulated square ring terminal designed for crimp connections on 4 AWG copper conductors. It provides a secure, low-resistance termination point for electrical wiring in panel assemblies, control cabinets, and power distribution applications. The contact is copper with a TiN (titanium nitride) plating for improved durability and corrosion resistance. At 1.38 inches in overall length and 0.55 inches in ring width, this terminal fits a No. 10 stud and delivers a compact, reliable connection. Electricians and panel builders install this part when a permanent, stripped-wire crimp termination is required without added insulation bulk.\u003c\/p\u003e\u003cp\u003eThis square ring terminal is suited for use in residential, commercial, and light industrial electrical installations where 4 AWG wire must be terminated to a No. 10 stud fastener. Common applications include ground lug connections, bus bar terminations, and equipment bonding points in electrical panels and junction boxes. The non-insulated design is appropriate where insulation is provided by the enclosure or where post-crimp inspection of the conductor is required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNon-insulated square ring design fits No. 10 stud hardware\u003c\/li\u003e\n\u003cli\u003eCrimp connection type for fast, consistent termination of 4 AWG conductors\u003c\/li\u003e\n\u003cli\u003eCopper contact with TiN plating for durability and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eCompact profile: 1.38 inches long, 0.55 inches wide, 0.090 inches thick\u003c\/li\u003e\n\u003cli\u003eCSA Certified, UL Listed, and RoHS Compliant\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for crimp termination of 4 AWG wire to No. 10 stud fasteners in standard electrical panel and control cabinet applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed electrician in accordance with NEC requirements. De-energize the circuit and verify zero voltage before crimping or securing the terminal. Use a properly calibrated ratchet crimp tool rated for the conductor gauge and terminal type to ensure a gas-tight connection. Do not solder over a crimped non-insulated terminal unless the terminal is rated for that process.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Type\u003c\/strong\u003e: Square Ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation Type\u003c\/strong\u003e: Non-Insulated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: Crimp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Wire Size\u003c\/strong\u003e: 4 AWG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStud Size\u003c\/strong\u003e: No. 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Material\u003c\/strong\u003e: Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Plating\u003c\/strong\u003e: TiN (Titanium Nitride)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.38 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Width\u003c\/strong\u003e: 0.55 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.090 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications\u003c\/strong\u003e: CSA Certified, UL Listed, RoHS Compliant\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: 54138\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"THOMAS \u0026 BETTS","offers":[{"title":"Default Title","offer_id":51542493200690,"sku":"54138","price":17.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/806e9fdfa5c6dbd4fbf166339b64a44a.jpg?v=1785901874","url":"https:\/\/voomisupply.com\/products\/thomas-betts-54138-square-ring-terminal-4-awg-crimp","provider":"Voomi Supply","version":"1.0","type":"link"}