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Solid THHN/THWN-2 WireFrom $0.20/ft -
Solid THHN/THWN-2 WireFrom $0.20/ft - Solid THHN/THWN-2 WireFrom $0.20/ft
- Solid THHN/THWN-2 WireFrom $0.20/ft
Parent SKU : MG450-2
SKU : MG450-2-250
"A premier thermal solution for extreme environments, engineered with mica-glass composite insulation for maximum reliability in temperatures up to 450°C."
Our 2 AWG 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 Mica-Glass composite insulation and a 27 % Nickel-Coated Copper conductor, it offers structural integrity and electrical safety at temperatures up to 450°C.
450°C Thermal Performance: Rated for continuous operation in environments reaching 842°F, providing unmatched safety for extreme-heat industrial zones.
Mica-Glass Insulation: The mica tapes provide superior dielectric strength and thermal resistance compared to standard plastic or silicone insulators.
Nickel-Coated Copper Conductor: Features high-quality nickel plating to prevent conductor oxidation and embrittlement, ensuring a long service life under constant extreme thermal stress.
Fiberglass Braid Protection: The outer jacket is treated with a high-temperature saturant, providing rugged resistance against abrasion and flame.
ENGINEERING OVERVIEW: 2 AWG MG 600V
APPLICATION: Industrial kilns, furnaces, glass plants, cement manufacturing, and extreme-heat processing equipment.
VOLTAGE: 600 Volts.
UL LISTING: UL 5107 / UL 5359.
CONDUCTORS: Flexible (133 strands) stranded soft drawn 27% nickel coated copper conductors per ASTM B355, B8, B173 and B174
INSULATION: Two layers of fiberglass-reinforced mica tape.
JACKET: Braided fiberglass treated with high-temperature saturant.
TEMPERATURE: 450°C (842°F).
NOMINAL OD: 0.45 inches (11.43 mm).
Industrial Kiln Wiring: Power leads for extreme-heat ceramic and glass kilns.
Smelting & Foundry: Wiring for equipment operating near molten metal and blast furnace heat.
Cement Manufacturing: Reliable circuits for heavy-duty rotary kilns and heat-intensive processing.
Heat-Treating Furnaces: Providing internal power for high-temperature atmosphere furnaces.
Extreme-Heat Appliances: Used in specialized commercial appliances where heat exceeds the limitations of standard Teflon/Glass wires.
Technical Note: All 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.
| Wire Size (AWG/MCM) | 2 AWG |
| Conductor Material | Nickel Plated Copper |
| Conductor Type | Stranded |
| Strand Count | 133 |
| Outer Diameter (OD) (in/mm) | 0.45 in. / 11.43 mm |
| Jacket Type | Fiberglass braid with a high temperature finish |
| Conductor Count | 1 |
| Shield | Unshielded |
| Insulation Type | Glass Reinforced Mica Tape |
| UL Listing Numbers | UL 5017, UL 5359 |
| Voltage Rating | 600V |
| Submersible | No |
| Temperature Rating | 450ºC |
| Standards | UL Style 5107, 5359 CSA AWM A/B FT-1 |
| Miscellaneous Information | The data shown are approximate and subject to standard industry and manufacturer tolerances |
| Primary Applications | Industrial Ovens, Furnaces, Kilns, Commercial Cooking Equipment, Heating Elements, Electric Heaters, Hot Spot Wiring, and Lighting and Appliances. |
| Weight per Foot | 0.26 lb |
In-stock orders placed before 3pm EST typically ship within 1-2 business days. Our business days are Monday through Friday; we do not process orders on Saturday, Sunday, or major US Holidays.
You will receive an e-mail with a tracking number within 1-2 business days from the time its shipped. You will also be able to view your order status and tracking numbers in your account order history.
Expedited shipments are delivered Monday-Friday except on US Holidays. The order must be placed before 12pm CST to ship same day ( Mon-Fri Only).
You have 30 days from the day you receive the item to contact us for a return. Returns are subject to a 30% Restocking Fee.
Please contact us at help@wireamerica.com to request a return authorization. Have your order number or name the order was placed with ready and we will email you an RMA (return) number and instructions for return. Currently, we do not offer exchanges. A new order must be placed if you need a different item. If you provide the new order number at the time of your return request, the restocking fee may be lowered.
Orders on any items with a material value of $50 or less are non-returnable.
Parent SKU : MG450-2
SKU : MG450-2-250
Parent SKU : MG450-2
SKU : MG450-2-250
"A premier thermal solution for extreme environments, engineered with mica-glass composite insulation for maximum reliability in temperatures up to 450°C."
Our 2 AWG 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 Mica-Glass composite insulation and a 27 % Nickel-Coated Copper conductor, it offers structural integrity and electrical safety at temperatures up to 450°C.
450°C Thermal Performance: Rated for continuous operation in environments reaching 842°F, providing unmatched safety for extreme-heat industrial zones.
Mica-Glass Insulation: The mica tapes provide superior dielectric strength and thermal resistance compared to standard plastic or silicone insulators.
Nickel-Coated Copper Conductor: Features high-quality nickel plating to prevent conductor oxidation and embrittlement, ensuring a long service life under constant extreme thermal stress.
Fiberglass Braid Protection: The outer jacket is treated with a high-temperature saturant, providing rugged resistance against abrasion and flame.
ENGINEERING OVERVIEW: 2 AWG MG 600V
APPLICATION: Industrial kilns, furnaces, glass plants, cement manufacturing, and extreme-heat processing equipment.
VOLTAGE: 600 Volts.
UL LISTING: UL 5107 / UL 5359.
CONDUCTORS: Flexible (133 strands) stranded soft drawn 27% nickel coated copper conductors per ASTM B355, B8, B173 and B174
INSULATION: Two layers of fiberglass-reinforced mica tape.
JACKET: Braided fiberglass treated with high-temperature saturant.
TEMPERATURE: 450°C (842°F).
NOMINAL OD: 0.45 inches (11.43 mm).
Industrial Kiln Wiring: Power leads for extreme-heat ceramic and glass kilns.
Smelting & Foundry: Wiring for equipment operating near molten metal and blast furnace heat.
Cement Manufacturing: Reliable circuits for heavy-duty rotary kilns and heat-intensive processing.
Heat-Treating Furnaces: Providing internal power for high-temperature atmosphere furnaces.
Extreme-Heat Appliances: Used in specialized commercial appliances where heat exceeds the limitations of standard Teflon/Glass wires.
Technical Note: All 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.
| Wire Size (AWG/MCM) | 2 AWG |
| Conductor Material | Nickel Plated Copper |
| Conductor Type | Stranded |
| Strand Count | 133 |
| Outer Diameter (OD) (in/mm) | 0.45 in. / 11.43 mm |
| Jacket Type | Fiberglass braid with a high temperature finish |
| Conductor Count | 1 |
| Shield | Unshielded |
| Insulation Type | Glass Reinforced Mica Tape |
| UL Listing Numbers | UL 5017, UL 5359 |
| Voltage Rating | 600V |
| Submersible | No |
| Temperature Rating | 450ºC |
| Standards | UL Style 5107, 5359 CSA AWM A/B FT-1 |
| Miscellaneous Information | The data shown are approximate and subject to standard industry and manufacturer tolerances |
| Primary Applications | Industrial Ovens, Furnaces, Kilns, Commercial Cooking Equipment, Heating Elements, Electric Heaters, Hot Spot Wiring, and Lighting and Appliances. |
| Weight per Foot | 0.26 lb |
In-stock orders placed before 3pm EST typically ship within 1-2 business days. Our business days are Monday through Friday; we do not process orders on Saturday, Sunday, or major US Holidays.
You will receive an e-mail with a tracking number within 1-2 business days from the time its shipped. You will also be able to view your order status and tracking numbers in your account order history.
Expedited shipments are delivered Monday-Friday except on US Holidays. The order must be placed before 12pm CST to ship same day ( Mon-Fri Only).
You have 30 days from the day you receive the item to contact us for a return. Returns are subject to a 30% Restocking Fee.
Please contact us at help@wireamerica.com to request a return authorization. Have your order number or name the order was placed with ready and we will email you an RMA (return) number and instructions for return. Currently, we do not offer exchanges. A new order must be placed if you need a different item. If you provide the new order number at the time of your return request, the restocking fee may be lowered.
Orders on any items with a material value of $50 or less are non-returnable.
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Technical Specifications
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MG stands for Mica-Glass. It refers to the two layers of fiberglass-reinforced mica tapes used for insulation, which allows the wire to operate at extreme temperatures where other insulators would melt or decompose.
MG wire is rated for continuous operation at temperatures up to 450°C (842°F), with a non-UL maximum rating of up to 538°C in specific applications.
"Better" depends on your application. TGGT (250°C) is the standard for commercial appliances and heaters. MG (450°C) is specifically for "extreme" industrial zones. Using MG for a standard 200°C application is often unnecessary, but it is the required choice for kilns, furnaces, and smelters.
Standard high-temp wires (like TGGT or SRML) use polymers that begin to degrade or "cook" once temperatures consistently stay above 250°C. MG wire utilizes a Mica-Glass composite insulation that is inherently heat-stable; the mica actually thrives in extreme heat. By choosing MG, you are moving away from insulation that slowly decomposes to a solution that is designed to withstand continuous 450°C operation.
MG wire is the standard for high-temperature equipment where ambient temperatures exceed 250°C. It is specifically designed for applications like industrial kilns, blast furnaces, glass-annealing lehrs, and high-heat processing equipment. If your application involves high radiant heat or direct furnace exposure, MG’s 450°C-rated mica-glass construction is the premier choice to prevent insulation breakdown and electrical shorts.
Choosing the right high-temperature wire depends on your maximum operating temperature and the level of flexibility required.
Yes. We carry a comprehensive range of high-temperature wire, including SIS (125°C) SRML (200°C), TGGT (250°C), and MG (450°C). Each product page includes detailed engineering specs, such as strand counts and UL listings. To view our complete inventory or download full spec sheets for every size we carry, please visit our Full High-Temperature Wire Collection here.
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