← MTW vs THHN | Product Knockout Thermocouple Wire Differences →

UL 3214 Wire vs UL 3231 Wire | Product Knockout

Friday, June 26, 2020

UL 3214 and UL 3231 wires are part of Allied Wire & Cable’s collection of High-Temperature wires, which are wires designed to withstand brutal temperatures and are fairly universal in their applications. High-temperature wires are commonly found in commercial and industrial environments as well as domestic such as household ovens and drying equipment. UL 3214 and 3231 wires share some similarities but also some differences in their specifications.


What is UL 3214 Wire?

UL 3214 WIre

The UL 3214 wire is designed to be highly flexible due to its silicone rubber insulation, while also possessing an enormous amount of strength and durability. Some of the recommended industrial applications for UL 3214 include motors, lighting fixtures, internal combustion engines, and mercury switch leads. In a more domestic setting, the applications include whole sealed cooking appliances, lighting equipment, computers, therapeutic and electronic devices. This construction allows for a uniform, flexible, concentric, quality construction.


What is UL 3231 Wire

UL 3231 wire

Like UL 3214, UL 3231 is also a high-temperature wire designed to be flexible and highly durable. As well as having good electrical properties, UL 3231 wires also have good chemical resistance, do not contain any chlorine or other halogens, and are fungus resistant. Industrial applications for UL 3231 are the wiring of electrical equipment, usually found in hazardous locations where temperature resistance is imperative but it can also be found in domestic settings, such as clothes dryers and other household appliances. UL 3231 is also found in the medical industry and is primarily found in ventilators. 



UL 3214

UL 3231


Silicon Rubber Cable

Silicone Rubber Cable

Temperature Range



Voltage Range

600 Volts

600 Volts


Tinned Copper

Tinned Annealed Copper


Silicone Rubber

Silicone Rubber


As you can see, UL 3231 Wire and UL 3214 Wire are fairly similar in construction and applications, but they do have some differences that one must take into consideration when making a purchase. If you’re unsure about what cable you’ll need in order to meet the needs of your application, consult with one of Allied’s knowledgeable sales reps by submitting an RFQ. Visit the website to learn more about the High-Temperature Wires. 

Please login or register to post comments.