From $0.20/ft
128 Products
-
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
SRML stands for Silicone Rubber Motor Lead. It is a specialized, 600V high-temperature electrical wire engineered for demanding industrial applications. Built with flexible stranded tinned copper, extruded silicone rubber insulation, and a protective outer fiberglass braid, it maintains high performance in extreme heat where standard wire insulations melt or degrade.
SRML wire is rated for 600 Volts and continuous high-temperature operation. Temperature ratings vary by conductor gauge: smaller sizes (6 AWG and smaller) are typically rated for 150°C (e.g., UL 3070), while larger sizes (4 AWG and larger) are rated for 200°C (e.g., UL 3231).
SRML wire is widely used in high-heat and high-vibration environments. Common applications include internal leads for electric motors and transformers, wiring inside industrial ovens, furnaces, kilns, commercial cooking equipment, and high-wattage lighting fixtures.
SRML is constructed with flexible, stranded tinned copper conductors for high conductivity and corrosion protection, covered in extruded silicone rubber insulation. The outer layer is a non-fraying fiberglass braid with a high-temperature saturant finish, which provides crucial mechanical protection against cuts, friction, and abrasion during wire pulls.
Yes! Wire America custom cuts high-temperature SRML wire by the foot so you order only the exact length your project requires. For custom cut lengths, technical submittal sheets, or bulk spool pricing, order online or call our sales team directly at (833) 268-8644.
Yes, SRML is exceptionally flexible due to its fine-stranded tinned copper conductors and pliable silicone insulation. This flexibility simplifies installation in tight terminal boxes, maintains integrity in high-vibration equipment, and prevents insulation cracking in sub-zero temperatures.
Yes. The silicone rubber insulation is inherently stable and non-reactive, providing excellent resistance to moisture, oils, solvents, and harsh chemical splash commonly encountered in heavy processing facilities.
Selection depends on four key factors: matching the temperature rating (150°C vs. 200°C) to your equipment's operating range, verifying the 600V rating, confirming required conductor ampacity, and accounting for physical routing constraints within the machine housing.
SRML wire typically complies with major industry specifications, including UL Styles 3070 (150°C) and 3231 (200°C), CSA certification for equipment leads, and ASTM B-33 standards for tinned copper stranding.
Yes. In addition to meeting standard flame-resistance testing, silicone rubber insulation forms a protective, non-conductive ash when exposed to direct flame, helping maintain basic circuit integrity during extreme emergency heat events.
(833) 268-8644
Looking for a reliable US supplier that sells SRML high-temp lead wire by the foot? Wire America is the #1 source for industrial-grade Type SRML 150°C/200°C High Temperature Wire. We provide heavy duty, extreme-heat single conductor lead wires cut to your exact length with fast shipping to keep your projects moving on time. No master reels required, no wasted scrap material—just the exact footage your job requires.
SRML wire (Silicone Rubber Motor Lead) is the industry standard for applications requiring high-heat resistance combined with extreme flexibility. Featuring a stranded tinned copper conductor and a dual-layer insulation system of silicone rubber and a fiberglass braid, SRML is engineered to remain stable under constant thermal cycling. It is the primary choice for motor leads, transformer wiring, and high-intensity lighting where standard THHN or PVC wires would become brittle and fail. UL 3231• UL SFF-2 (18-14 AWG)• UL 3070 (18-12 AWG)• UL 3101 (10 AWG)• CSA AWM 1 A/B FT.
Get this thing filled up so you can help Wire America!