UL3347 300 V 80 °C XLPE Hook-Up Wire

UL3347 is a XLPE-insulated hook-up wire manufactured by Xinya Electronic Co., Ltd. It is rated 300 V, 80 °C. It is supplied in 23 recorded constructions spanning 16–30 AWG, with an overall diameter of 1.1–2.4 mm, cut to the length you order.

UL3347 at a glance

• 16–30 AWG, across 23 listed constructions
• Both solid (single-strand) and stranded conductors are listed — 8 solid and 15 stranded
• Insulation wall 0.43–0.47 mm
• Overall diameter 1.1–2.4 mm
• Max. conductor resistance 14–381 Ω/km at 20 °C DC (roughly 4.3–116.1 Ω per 1,000 ft)
• Routine withstand test on every listed row: 2000 VAC, 1 min

How UL3347 compares with its nearest alternatives

UL3347 and UL10602 share the 300 V rating and 80 °C temperature rating. Overall diameter runs 1.1–2.4 mm for UL3347 against 0.7–11.45 mm for UL10602. UL3347 is the tighter of the two where harness space is limited. Insulation wall is 0.43–0.47 mm against 0.25–0.31 mm. Size coverage is 16–30 AWG against 16–32 AWG.

UL3347 and UL3385 share the 300 V rating and XLPE insulation. The distinction is in maximum conductor temperature (80 °C against 105 °C). Insulation wall is 0.43–0.47 mm against 0.39–0.47 mm. Size coverage is 16–30 AWG against 16–28 AWG.

Conductor construction and selection

Both conductor families are listed. Single-strand rows such as 1/0.254 at 30 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 UL3347 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 UL3347

Which sizes of UL3347 are available?

16–30 AWG, across the 23 constructions in the table below. Sizes outside the table can be quoted on request.

Can UL3347 be supplied in both solid and stranded conductor?

Yes. The documented range covers 23 constructions, of which 8 are single-strand and 15 are stranded. Give the construction, not only the AWG, when you request a quotation.

What overall diameter does UL3347 run to?

The documented range is 1.1–2.4 mm. Quote the size, not the style alone, when the diameter has to fit a specific gland, grommet or channel.