Silicone Rubber Wire

Silicone rubber AWM wire provides the highest continuous temperature rating in the standard AWM wire range — 200°C — through the inherent thermal stability of the silicone polymer chain, which maintains its elastic, non-brittle form and electrical insulation properties across its rated range. Silicone insulation also remains flexible at temperatures as low as −60°C, making it a common specification where both high-temperature and low-temperature flexibility are required. It is selected for internal wiring where the temperature and flexibility requirements exceed what many PVC or XLPE styles are rated to provide.

CableApex supplies silicone rubber AWM wire as a UL Recognized Component — file on record — covering four styles with different constructions and voltage ratings to match specific routing and application requirements. All four comply with RoHS and REACH and are available in the AWG ranges according to each UL style’s construction.

UL Style	Voltage	Temperature	Construction	Primary application
UL 3135	600V AC	200°C	Bare silicone rubber	Totally enclosed equipment internal wiring — ovens, motors, transformers
UL 3172	600V AC	200°C	Silicone + glass or aramid braid	Routing areas where a braided outer covering is preferred for added protection
UL 3122	300V AC	200°C	Silicone + lacquered braid	Control and signal circuits in high-temperature enclosures at 300V
UL 3071	600V AC	200°C	Silicone + glass braid (SF-2)	Industrial heating equipment and motor leads, in the 18–13 AWG range

To request a quotation, send the UL style number, AWG size, voltage, colour, quantity, and a brief description of the application. Quotations are returned within 24 hours, and mixed-style or mixed-AWG orders are accepted on a single shipment.