{"title":"MG - 450°C | 550°C","description":"\u003cp\u003e\u003cstrong\u003eMG Wire\u003c\/strong\u003e, or \u003cstrong\u003eMica Glass Wire\u003c\/strong\u003e, is a specialized high-temperature electrical wire designed for extreme heat environments, typically featuring stranded nickel-plated copper conductors. Its core insulation is made from mica tape or a mica composite, renowned for its exceptional thermal stability and electrical insulating properties at high temperatures. An outer fiberglass braid, often treated for added protection, provides mechanical strength and enhanced flame resistance. With impressive temperature ratings, commonly 450°C (842°F) and sometimes higher, and generally rated for 300V or 600V, MG wire is widely used for internal wiring in commercial and industrial ovens, furnaces, kilns, and other \"hot spot\" applications where standard wires cannot perform. \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e Read our \u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003ca style=\"color: rgb(255, 42, 0);\" title=\"MG Wire Buyers Guide | Wire America\" href=\"https:\/\/wireamerica.com\/blogs\/news\/what-is-mg-high-temp-wire\"\u003e\u003cb\u003eMG Wire Buyers Guide.\u003c\/b\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"18-awg-high-temp-wire-type-mg-450c","title":"18 AWG High Temp Wire, Type MG, 450ºC","description":"\u003cp data-path-to-node=\"2\"\u003e\u003cstrong\u003e\"A premier thermal solution for extreme environments, engineered with mica-glass composite insulation for maximum reliability in temperatures up to 450°C.\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"3\"\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"0\"\u003eWhy Professionals Choose MG High-Temp Wire\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"4\"\u003eThe \u003cb data-path-to-node=\"4\" data-index-in-node=\"4\"\u003e18 AWG\u003c\/b\u003e MG (Mica-Glass) wire is engineered for the most extreme thermal environments on earth, where even PTFE-based wires (like TGGT) reach their limits. MG wire is the gold standard for internal wiring in industrial kilns, glass plants, cement manufacturing, and heavy-duty smelting equipment. By using a \u003cb data-path-to-node=\"4\" data-index-in-node=\"310\"\u003eMica-Glass composite insulation\u003c\/b\u003e and a \u003cstrong\u003e27 %\u003c\/strong\u003e \u003cb data-path-to-node=\"4\" data-index-in-node=\"348\"\u003eNickel-Coated Copper\u003c\/b\u003e conductor, it offers structural integrity and electrical safety at temperatures up to 450°C.\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb data-path-to-node=\"5,0,0\" data-index-in-node=\"0\"\u003e450°C Thermal Performance:\u003c\/b\u003e Rated for continuous operation in environments reaching 842°F, providing unmatched safety for extreme-heat industrial zones.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"0\"\u003eMica-Glass Insulation:\u003c\/b\u003e The mica tapes provide superior dielectric strength and thermal resistance compared to standard plastic or silicone insulators.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb data-path-to-node=\"5,2,0\" data-index-in-node=\"0\"\u003eNickel-Coated Copper Conductor:\u003c\/b\u003e Features high-quality nickel plating to prevent conductor oxidation and embrittlement, ensuring a long service life under constant extreme thermal stress.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,3,0\"\u003e\u003cb data-path-to-node=\"5,3,0\" data-index-in-node=\"0\"\u003eFiberglass Braid Protection:\u003c\/b\u003e The outer jacket is treated with a high-temperature saturant, providing rugged resistance against abrasion and flame.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003eMG Technical Specifications\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eENGINEERING OVERVIEW: 18 AWG MG 600V\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"8\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,0\"\u003e\u003cb data-path-to-node=\"8,0,0\" data-index-in-node=\"0\"\u003eAPPLICATION:\u003c\/b\u003e Industrial kilns, furnaces, glass plants, cement manufacturing, and extreme-heat processing equipment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eVOLTAGE:\u003c\/b\u003e 600 Volts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\"\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003eUL LISTING:\u003c\/b\u003e UL 5107 \/ UL 5359.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\"\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003eCONDUCTORS:\u003c\/b\u003e \u003cmeta charset=\"utf-8\"\u003eFlexible (16 strands) stranded soft drawn 27% nickel coated copper conductors per ASTM B355, B8, B173 and B174\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,4,0\"\u003e\u003cb data-path-to-node=\"8,4,0\" data-index-in-node=\"0\"\u003eINSULATION:\u003c\/b\u003e Two layers of fiberglass-reinforced mica tape.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,5,0\"\u003e\u003cb data-path-to-node=\"8,5,0\" data-index-in-node=\"0\"\u003eJACKET:\u003c\/b\u003e Braided fiberglass treated with high-temperature saturant.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,6,0\"\u003e\u003cb data-path-to-node=\"8,6,0\" data-index-in-node=\"0\"\u003eTEMPERATURE:\u003c\/b\u003e 450°C (842°F).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,7,0\"\u003e\u003cb data-path-to-node=\"8,7,0\" data-index-in-node=\"0\"\u003eNOMINAL OD:\u003c\/b\u003e \u003cspan\u003e0.115 inches (2.92 mm)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003eCommon 18 AWG MG Applications\u003c\/b\u003e\u003c\/h4\u003e\n\u003cul data-path-to-node=\"10\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,0,0\"\u003e\u003cb data-path-to-node=\"10,0,0\" data-index-in-node=\"0\"\u003eIndustrial Kiln Wiring:\u003c\/b\u003e Power leads for extreme-heat ceramic and glass kilns.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,1,0\"\u003e\u003cb data-path-to-node=\"10,1,0\" data-index-in-node=\"0\"\u003eSmelting \u0026amp; Foundry:\u003c\/b\u003e Wiring for equipment operating near molten metal and blast furnace heat.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,2,0\"\u003e\u003cb data-path-to-node=\"10,2,0\" data-index-in-node=\"0\"\u003eCement Manufacturing:\u003c\/b\u003e Reliable circuits for heavy-duty rotary kilns and heat-intensive processing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,3,0\"\u003e\u003cb data-path-to-node=\"10,3,0\" data-index-in-node=\"0\"\u003eHeat-Treating Furnaces:\u003c\/b\u003e Providing internal power for high-temperature atmosphere furnaces.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,4,0\"\u003e\u003cb data-path-to-node=\"10,4,0\" data-index-in-node=\"0\"\u003eExtreme-Heat Appliances:\u003c\/b\u003e Used in specialized commercial appliances where heat exceeds the limitations of standard Teflon\/Glass wires.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"22\"\u003e \u003c\/p\u003e\n\u003chr data-path-to-node=\"23\"\u003e\n\u003cp data-path-to-node=\"24\"\u003e\u003cb data-path-to-node=\"24\" data-index-in-node=\"0\"\u003eTechnical Note:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eAll values are nominal and subject to industry tolerances and manufacturer corrections. Specifications are subject to change without notice. It is the buyer’s responsibility to verify that all materials meet the specific requirements of the project and comply with local electrical codes.\u003c\/p\u003e\n\u003cp data-path-to-node=\"24\"\u003e \u003c\/p\u003e","brand":"Wire America","offers":[{"title":"250 ft. Spool","offer_id":51981972341050,"sku":"MG450-18-250","price":173.0,"currency_code":"USD","in_stock":true},{"title":"500 ft. Spool","offer_id":51981972373818,"sku":"MG450-18-500","price":343.0,"currency_code":"USD","in_stock":true},{"title":"1000 ft. Spool","offer_id":51981972406586,"sku":"MG450-18-1K","price":683.0,"currency_code":"USD","in_stock":true},{"title":"By the Foot","offer_id":51981972439354,"sku":"MG450-18-FT","price":0.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/0234\/9114\/files\/MG_450_High_Temp_Wire_9934cf27-73b9-4a24-a249-0ec83b7492d3.jpg?v=1760026666"},{"product_id":"14-awg-high-temp-wire-type-mg-450c","title":"14 AWG High Temp Wire, Type MG, 450ºC","description":"\u003cstrong\u003eMG Wire, or Mica Glass Wire\u003c\/strong\u003e, is a specialized high-temperature electrical wire engineered for extreme heat environments where conventional wires would fail. Its key feature is its insulation, which consists of mica tape and an outer fiberglass braid, allowing it to withstand temperatures up to 450°C (842°F) and sometimes higher.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAPPLICATIONS:\u003c\/strong\u003e\u003cbr\u003eIndustrial Ovens, Furnaces, Kilns, Commercial Cooking Equipment, Heating Elements, Electric Heaters, Hot Spot Wiring, Lighting and Various Appliances.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCONDUCTOR:\u003cbr\u003e\u003c\/strong\u003eFlexible stranded 27% nickel plated, annealed copper.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eJACKET:\u003cbr\u003e\u003c\/strong\u003eFiberglass braid with a high temperature finish.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTEMPERATURE RATING:\u003c\/strong\u003e\u003cbr\u003e450ºC \/ 842ºF\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eUL LISTING:\u003cbr\u003e\u003c\/strong\u003eUL 5107, UL 5359\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCABLE WEIGHT:\u003cbr\u003e\u003c\/strong\u003e0.023 lbs\/ft.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eThe data shown are approximate and subject to standard industry and manufacturer tolerances.\u003c\/em\u003e","brand":"Wire America","offers":[{"title":"250 ft. Spool","offer_id":51981972865338,"sku":"MG450-14-250","price":289.0,"currency_code":"USD","in_stock":true},{"title":"500 ft. Spool","offer_id":51981972898106,"sku":"MG450-14-500","price":574.0,"currency_code":"USD","in_stock":true},{"title":"1000 ft. Spool","offer_id":51981972930874,"sku":"MG450-14-1K","price":1141.0,"currency_code":"USD","in_stock":true},{"title":"By the Foot","offer_id":51981972963642,"sku":"MG450-14-FT","price":1.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/0234\/9114\/files\/MG_450_High_Temp_Wire_d9361244-8a45-4332-a15a-7575c777c73b.jpg?v=1760026667"},{"product_id":"12-awg-high-temp-wire-type-mg-450c","title":"12 AWG High Temp Wire, Type MG, 450ºC","description":"\u003cstrong\u003eMG Wire, or Mica Glass Wire\u003c\/strong\u003e, is a specialized high-temperature electrical wire engineered for extreme heat environments where conventional wires would fail. Its key feature is its insulation, which consists of mica tape and an outer fiberglass braid, allowing it to withstand temperatures up to 450°C (842°F) and sometimes higher.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAPPLICATIONS:\u003c\/strong\u003e\u003cbr\u003eIndustrial Ovens, Furnaces, Kilns, Commercial Cooking Equipment, Heating Elements, Electric Heaters, Hot Spot Wiring, Lighting and Various Appliances.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCONDUCTOR:\u003cbr\u003e\u003c\/strong\u003eFlexible stranded 27% nickel plated, annealed copper.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eJACKET:\u003cbr\u003e\u003c\/strong\u003eFiberglass braid with a high temperature finish.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTEMPERATURE RATING:\u003c\/strong\u003e\u003cbr\u003e450ºC \/ 842ºF\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eUL LISTING:\u003cbr\u003e\u003c\/strong\u003eUL 5107, UL 5359\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCABLE WEIGHT:\u003cbr\u003e\u003c\/strong\u003e0.031 lbs\/ft.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eThe data shown are approximate and subject to standard industry and manufacturer tolerances.\u003c\/em\u003e","brand":"Wire America","offers":[{"title":"250 ft. Spool","offer_id":51981972996410,"sku":"MG450-12-250","price":491.0,"currency_code":"USD","in_stock":true},{"title":"500 ft. Spool","offer_id":51981973029178,"sku":"MG450-12-500","price":976.0,"currency_code":"USD","in_stock":true},{"title":"1000 ft. Spool","offer_id":51981973061946,"sku":"MG450-12-1K","price":1941.0,"currency_code":"USD","in_stock":true},{"title":"By the Foot","offer_id":51981973094714,"sku":"MG450-12-FT","price":1.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/0234\/9114\/files\/MG_450_High_Temp_Wire_e39d3126-47ce-4394-a076-7e3b4fa2d877.jpg?v=1760026667"},{"product_id":"16-awg-high-temp-wire-type-mg-450c","title":"16 AWG High Temp Wire, Type MG, 450ºC","description":"\u003cstrong\u003eMG Wire, or Mica Glass Wire\u003c\/strong\u003e, is a specialized high-temperature electrical wire engineered for extreme heat environments where conventional wires would fail. Its key feature is its insulation, which consists of mica tape and an outer fiberglass braid, allowing it to withstand temperatures up to 450°C (842°F) and sometimes higher.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAPPLICATIONS:\u003c\/strong\u003e\u003cbr\u003eIndustrial Ovens, Furnaces, Kilns, Commercial Cooking Equipment, Heating Elements, Electric Heaters, Hot Spot Wiring, Lighting and Various Appliances.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCONDUCTOR:\u003cbr\u003e\u003c\/strong\u003eFlexible stranded 27% nickel plated, annealed copper.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eJACKET:\u003cbr\u003e\u003c\/strong\u003eFiberglass braid with a high temperature finish.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTEMPERATURE RATING:\u003c\/strong\u003e\u003cbr\u003e450ºC \/ 842ºF\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eUL LISTING:\u003cbr\u003e\u003c\/strong\u003eUL 5107, UL 5359\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCABLE WEIGHT:\u003cbr\u003e\u003c\/strong\u003e0.016 lbs\/ft.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eThe data shown are approximate and subject to standard industry and manufacturer tolerances.\u003c\/em\u003e","brand":"Wire America","offers":[{"title":"250 ft. Spool","offer_id":51981973127482,"sku":"MG450-16-250","price":247.0,"currency_code":"USD","in_stock":true},{"title":"500 ft. Spool","offer_id":51981973160250,"sku":"MG450-16-500","price":490.0,"currency_code":"USD","in_stock":true},{"title":"1000 ft. Spool","offer_id":51981973193018,"sku":"MG450-16-1K","price":975.0,"currency_code":"USD","in_stock":true},{"title":"By the Foot","offer_id":51981973225786,"sku":"MG450-16-FT","price":1.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/0234\/9114\/files\/MG_450_High_Temp_Wire_300f7811-f4cf-45e7-9e86-5446d577cbf0.jpg?v=1760026666"},{"product_id":"10-awg-high-temp-wire-type-mg-450c","title":"10 AWG High Temp Wire, Type MG, 450ºC","description":"\u003cstrong\u003eMG Wire, or Mica Glass Wire\u003c\/strong\u003e, is a specialized high-temperature electrical wire engineered for extreme heat environments where conventional wires would fail. Its key feature is its insulation, which consists of mica tape and an outer fiberglass braid, allowing it to withstand temperatures up to 450°C (842°F) and sometimes higher.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAPPLICATIONS:\u003c\/strong\u003e\u003cbr\u003eIndustrial Ovens, Furnaces, Kilns, Commercial Cooking Equipment, Heating Elements, Electric Heaters, Hot Spot Wiring, Lighting and Various Appliances.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCONDUCTOR:\u003cbr\u003e\u003c\/strong\u003eFlexible stranded 27% nickel plated, annealed copper.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eJACKET:\u003cbr\u003e\u003c\/strong\u003eFiberglass braid with a high temperature finish.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTEMPERATURE RATING:\u003c\/strong\u003e\u003cbr\u003e450ºC \/ 842ºF\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eUL LISTING:\u003cbr\u003e\u003c\/strong\u003eUL 5107, UL 5359\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCABLE WEIGHT:\u003cbr\u003e\u003c\/strong\u003e0.052 lbs\/ft.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eThe data shown are approximate and subject to standard industry and manufacturer tolerances.\u003c\/em\u003e","brand":"Wire America","offers":[{"title":"250 ft. Spool","offer_id":51981973258554,"sku":"MG450-10-250","price":788.0,"currency_code":"USD","in_stock":true},{"title":"500 ft. Spool","offer_id":51981973291322,"sku":"MG450-10-500","price":1568.0,"currency_code":"USD","in_stock":true},{"title":"1000 ft. Spool","offer_id":51981973324090,"sku":"MG450-10-1K","price":3120.0,"currency_code":"USD","in_stock":true},{"title":"By the Foot","offer_id":51981973356858,"sku":"MG450-10-FT","price":3.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/0234\/9114\/files\/MG_450_High_Temp_Wire_b2cbd882-0e6f-4af8-b103-7ba84585e2dc.jpg?v=1760026666"},{"product_id":"8-awg-high-temp-wire-type-mg-450c","title":"8 AWG High Temp Wire, Type MG, 450ºC","description":"\u003cstrong\u003eMG Wire, or Mica Glass Wire\u003c\/strong\u003e, is a specialized high-temperature electrical wire engineered for extreme heat environments where conventional wires would fail. 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