SRML Wire / SF-2 & SFF-2

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SRML, SF-2, and SFF-2 wires are designed to handle continuous high temperatures in demanding electrical and mechanical environments. Rated at 600 volts, these wires are commonly used in motors, appliances, and heat-producing equipment where standard insulation would fail.

SRML wire combines tinned copper conductors with silicone rubber insulation and a fiberglass braid for extra strength and protection from abrasion. SF-2 and SFF-2 share the same heat resistance, with SF-2 built for rigidity and long-term wear, and SFF-2 made with finer strands for easy routing and flexibility. Reliable, flame-resistant, and durable, these wires perform steadily in harsh, high-heat applications.

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FAQs

SRML wire is made for high-heat environments like motors, appliances, furnaces, and lighting equipment. It’s rated 600V and can handle continuous temps up to 200°C. The silicone insulation and fiberglass braid help it resist abrasion, ozone, and moisture.

Both are 600V high-temp wires, but they differ in strand count. SF-2 has fewer strands for a stiffer, more durable build. SFF-2 has more strands, making it more flexible for tight bends or vibration-heavy installs.

Yes. SRML, SF-2, and SFF-2 are all UV, ozone, and moisture-resistant. They hold up well in industrial settings, but always check local code if the wire will be fully exposed.

Yes. SRML is commonly called Silicone Rubber Motor Lead wire. It’s often used to connect motor windings to terminal blocks or controls because it tolerates heat and vibration.

Some gauges and custom braid colors aren’t always in the catalog. Pro Wire & Cable can usually source them from our partner manufacturers. Send a request through the Contact Us page and we’ll track it down for you.