UL3398 Halogen-Free XLPO Hook-Up Wire

UL3398 is a XLPO-insulated hook-up wire manufactured by Xinya Electronic Co., Ltd. It is supplied in 27 recorded constructions spanning 10–30 AWG, with an overall diameter of 1.05–4.3 mm, cut to the length you order.

UL3398 at a glance

• 10–30 AWG, across 27 listed constructions
• Both solid (single-strand) and stranded conductors are listed — 9 solid and 18 stranded
• Insulation wall 0.39–0.47 mm
• Overall diameter 1.05–4.3 mm
• Max. conductor resistance 3.54–381 Ω/km at 20 °C DC (roughly 1.1–116.1 Ω per 1,000 ft)
• Routine withstand test on every listed row: 2000 VAC, 1 min

How UL3398 compares with its nearest alternatives

UL3398 and UL3567 sit in the same catalogue group but are rated differently. Overall diameter runs 1.05–4.3 mm for UL3398 against 1.05–2.7 mm for UL3567. UL3567 is the tighter of the two, so UL3398 is the option to take only when the larger diameter is acceptable. Size coverage is 10–30 AWG against 14–30 AWG.

UL3398 and UL3266 sit in the same catalogue group but are rated differently. Size coverage is 10–30 AWG against 10–32 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 UL3398 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 UL3398

Which sizes of UL3398 are available?

10–30 AWG, across the 27 constructions in the table below. Sizes outside the table can be quoted on request.

Can UL3398 be supplied in both solid and stranded conductor?

Yes. The documented range covers 27 constructions, of which 9 are single-strand and 18 are stranded. Give the construction, not only the AWG, when you request a quotation.

What overall diameter does UL3398 run to?

The documented range is 1.05–4.3 mm. Quote the size, not the style alone, when the diameter has to fit a specific gland, grommet or channel.