UL1331 600 V 150 °C Fluoropolymer Hook-Up Wire

UL1331 is a Fluoropolymer-insulated hook-up wire manufactured by Xinya Electronic Co., Ltd. It is rated 600 V, 150 °C. It is supplied in 19 recorded constructions spanning 12–30 AWG, with an overall diameter of 1.32–3.4 mm, cut to the length you order.

UL1331 at a glance

• 12–30 AWG, across 19 listed constructions
• Both solid (single-strand) and stranded conductors are listed — 2 solid and 17 stranded
• Insulation wall 0.51 mm
• Overall diameter 1.32–3.4 mm
• Max. conductor resistance 5.64–381 Ω/km at 20 °C DC (roughly 1.7–116.1 Ω per 1,000 ft)
• Routine withstand test on every listed row: 2000 VAC, 1 min

How UL1331 compares with its nearest alternatives

UL1331 and UL10086 share the 600 V rating and 150 °C temperature rating. Overall diameter runs 1.32–3.4 mm for UL1331 against 0.72–1.5 mm for UL10086. UL10086 is the tighter of the two, so UL1331 is the option to take only when the larger diameter is acceptable. Insulation wall is 0.51 mm against 0.26 mm. Size coverage is 12–30 AWG against 20–32 AWG.

UL1331 and UL1330 share the 600 V rating and Fluoropolymer insulation. The distinction is in maximum conductor temperature (150 °C against 200 °C).

Conductor construction and selection

Both conductor families are listed. Single-strand rows such as 1/0.32 at 28 AWG suit fixed routing and insulation-displacement termination, where the conductor is not flexed after installation. Stranded rows such as 7/0.10 at 30 AWG flex repeatedly and are the usual choice for hand-soldered harnesses and anything that has to follow a moving path. Conductor resistance is the same at a given size, so the choice between them is mechanical rather than electrical.

How to read the UL1331 table

“Insulation O.D. (mm)” is measured over the insulation, not over a jacket, tape or braid. Conductor resistance is stated at 20 °C DC per kilometre — divide by 3.281 for ohms per 1,000 ft. The withstand column is a routine production test applied to finished lengths, not a continuous working voltage.

Questions buyers ask about UL1331

Which sizes of UL1331 are available?

12–30 AWG, across the 19 constructions in the table below. Sizes outside the table can be quoted on request.

Can UL1331 be supplied in both solid and stranded conductor?

Yes. The documented range covers 19 constructions, of which 2 are single-strand and 17 are stranded. Give the construction, not only the AWG, when you request a quotation.

What overall diameter does UL1331 run to?

The documented range is 1.32–3.4 mm. Quote the size, not the style alone, when the diameter has to fit a specific gland, grommet or channel.