From $0.20/ft
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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 : SRGK12-3
SKU : SRGK12-3-250
Specifically engineered for high-density power and control applications in extreme thermal zones, this 12 AWG 3-conductor SRG-K assembly provides elite performance where standard cables would degrade. Rated for continuous operation at 200C and 600V, this wire combines high-flexibility stranded copper with a specialized silicone rubber and fiberglass armor system.
The SRG-K series is constructed for use in high temperature applications as a multiple conductor control cable where resistance to abrasion and mechanical abuse are desired. The 12-gauge configuration offers significant current-carrying capacity for heavy-duty motors and industrial heaters. The 3-conductor configuration is highly versatile, commonly used for single-phase grounded applications or specific control feeds in thermal processing equipment.
Elite Thermal Resilience: Rated for continuous service up to 200C.
Sub-Zero Functionality: Suitable for applications down to -60C.
Torque-Free Construction: Cable utilizes a specialized "Torque Free" design that eliminates memory found in traditional cables, making it significantly easier to route.
Dual-Layer Protection: Each conductor features extruded silicone rubber insulation protected by an individual fiberglass braid cover.
Superior Mechanical Shielding: The assembly is wrapped in a braided aramid K-fiber outer jacket, providing superior cut-through and abrasion resistance.
Proven Fire Safety: This cable passes the IEEE-383 Vertical Cable Tray Flame Test (210,000 BTU/hr) and the NEMA WC 3 Flame Propagation Test.
Moisture Resistance: Passes the ICEA T-27-581 Water Absorption Test.
Corrosion Resistance: Features annealed tinned copper conductors that resist oxidation.
Conductor Size: 12 AWG
Number of Leads: 3
Stranding: 19 Strands
Voltage Rating: 600V
Outer Diameter: 0.50 inches (12.67 mm)
Weight: 138.61 lbs per 1000 ft
Insulation Material: Silicone Rubber with Fiberglass Braid
Outer Jacket: Aramid K-Fiber Braid
Steel and Glass Plants: Widely used in environments where resistance to mechanical abuse and heat is critical.
High-Temperature Motor Leads: Specifically constructed for connecting motors in areas with high ambient heat.
Boilers and Steam Lines: Ideal for routing power and control signals near high-temperature infrastructure.
Chemical Processing: Suitable for industrial plants where moisture, UV, and ozone exposure are present.
Technical Note: All dimensions listed are nominal. SRG-K is not recommended for outdoor use. It is the user's responsibility to verify that all materials meet the specific requirements of the project and comply with local electrical codes.
RADIX PART#: KD12CT03G
The data shown are approximate and subject to standard industry and manufacturer tolerances
| Wire Size (AWG/MCM) | 12 AWG |
| Conductor Material | Tinned Copper |
| Conductor Type | Stranded |
| Strand Count | 19 |
| Outer Diameter (OD) (in/mm) | 0.43 in. / 10.92 mm |
| Jacket Type | Aramid Fiber Braid |
| Conductor Count | 3 |
| Shield | Unshielded |
| Insulation Type | Silicone Rubber, Fiberglass Braid |
| Voltage Rating | 600V |
| Submersible | No |
| Sunlight Resistance Rating | Yes |
| Temperature Rating | 200ºC |
| Standards | NEMA WC 3 Flame Propogation Test IEEE 1202 Vertical Cable Tray Flame Test |
| Miscellaneous Information | The data shown are approximate and subject to standard industry and manufacturer tolerances |
| RoHS Compliance | Yes |
| Primary Applications | Used for leads to motors, transformers or other electrical equipment where hazardous and/or high temperature conditions exist requiring flexible heat resistant conductors at 600 volts |
| Common Uses |
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| Weight per Foot | 0.11 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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Physical Specifications
Technical Specifications
Usage & Installation:
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Standard orange copper reacts poorly to high temperatures, but SRG-K utilizes stranded tinned copper:
Standard extension cords are insulated with plastic (PVC). If a PVC cord is exposed to the 200°C temperatures found near industrial heaters or inside motor housings, the plastic will melt, smoke, and eventually catch fire. SRG-K uses silicone and glass—materials that are designed to live in those "hot zones" without failing.
While the silicone and glass can handle moisture and steam, SRG-K is primarily an internal lead wire. Because the outer braid is made of fabric (fiberglass), it can soak up liquids like oil or water if submerged. It is meant to be used inside the protective housing of a motor, oven, or furnace where it is shielded from direct liquid sprays.
The 3-conductor setup is the safety standard for most 120V or 240V equipment. You have two wires to carry the power and a third green-coded wire for the ground. This ground wire is a lifesaver; if a wire inside your machine touches the metal frame, the ground wire directs the electricity safely back to the breaker instead of through the person touching the machine.
This 12 AWG, 3-conductor wire is a specialized high-temperature cable designed for industrial equipment that requires both significant power and a dedicated safety ground. Rated for continuous operation at 200°C (392°F), it is the specific choice for wiring industrial heaters, commercial ovens, and high-performance motors. Unlike standard "SJOOW" or "SOOW" portable cords that would melt or harden in extreme heat, SRG-K maintains its electrical integrity and flexibility in the harshest thermal environments.
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