UL PV Wire, UL 4703, E331816
UL4703 photovoltaic DC cable, 8–12 AWG. O.D. 5.6–8 mm, stranded. UL 4703 E331816 cited. Quote on request.
UL 4703 · E331816 is cited for this line. Request the issued document before relying on it for a finished-product approval.
Request certificate or datasheet →UL4703 is a photovoltaic DC cable manufactured by Xinya Electronic Co., Ltd. The catalogue describes it as a photovoltaic DC construction. It is supplied in 3 recorded constructions spanning 8–12 AWG, with an overall diameter of 5.6–8 mm, cut to the length you order.
UL4703 at a glance
- 8–12 AWG, across 3 listed constructions
- Stranded conductor throughout the documented range
- Insulation wall 0.76 mm
- Overall diameter 5.6–8 mm
- Max. conductor resistance 2.23–5.64 Ω/km at 20 °C DC (roughly 0.7–1.7 Ω per 1,000 ft)
How UL4703 compares with its nearest alternatives
UL4703 and UL1277 sit in the same catalogue group but are rated differently. Overall diameter runs 5.6–8 mm for UL4703 against 8.4–19.3 mm for UL1277. UL4703 is the tighter of the two where harness space is limited. Size coverage is 8–12 AWG against 12–18 AWG.
Conductor construction and selection
Every construction listed for UL4703 is a stranded conductor, which suits harnesses and assemblies that are flexed or routed around a bend. The resistance column gives the maximum permitted value for the conductor at 20 °C DC.
How to read the UL4703 table
“Insulation O.D. (mm)” is measured over the insulation, not over a jacket, tape or braid. “Jacket O.D. (mm)” is the finished cable diameter, which is the value to quote for gland, grommet and connector sizing. Conductor resistance is stated at 20 °C DC per kilometre — divide by 3.281 for ohms per 1,000 ft.
Questions buyers ask about UL4703
Which sizes of UL4703 are available?
8–12 AWG, across the 3 constructions in the table below. Sizes outside the table can be quoted on request.
Is UL4703 a stranded conductor?
Every construction documented for this line is stranded. Confirm the strand count you need — the “n/mm” figure in the table — because resistance and flexibility both depend on it, and two rows at the same size can differ.
What overall diameter does UL4703 run to?
The documented range is 5.6–8 mm. Quote the size, not the style alone, when the diameter has to fit a specific gland, grommet or channel.
Manufacturer product data
- UL recognized file: E331816 (source catalogue)
- Rated temperature: 105 °C dry / 90 °C wet
- Rated voltage: 600 V; 1000 V or 2000 V for the additional construction series
- Reference standard: UL 4703
- Conductor: stranded tinned or bare copper
- XLPE insulation and XLPE covering
- Passes UL flame test
- UV and ozone resistant
- Application: photovoltaic systems
Detailed specification table
Scroll horizontally to view all specifications
| AWG | Construction (No./mm) | Conductor diameter (mm) | Insulation thickness (mm) | Insulation O.D. (mm) | Jacket thickness (mm) | Jacket O.D. (mm) | Max. conductor resistance (Ω/km, 20°C, DC) |
|---|---|---|---|---|---|---|---|
| 12 | 65/0.254 | 2.36 | 0.76 | 4.00 | 0.76 | 5.60 | 5.64 |
| 10 | 105/0.254 | 3.0 | 0.76 | 4.70 | 0.76 | 6.30 | 3.546 |
| 8 | 168/0.254 | 3.99 | 0.76 | 6.40 | 0.76 | 8.00 | 2.23 |
Source specification sheet: UL PV Wire-E331816_1.jpg, UL_PV_Wire_E331816_EN.jpg.
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