TC-ER UL1277 Tray Cable
UL1277 tray cable, 12–18 AWG. O.D. 8.4–19.3 mm, stranded, up to 10 cores. Cut to length — quote on request.
Request the applicable UL file and confirmed construction scope for this photovoltaic or energy-storage cable.
Request certificate or datasheet →UL1277 is a tray cable manufactured by Xinya Electronic Co., Ltd. The catalogue describes it as a tray-rated construction. It is supplied in 32 recorded constructions spanning 12–18 AWG, with an overall diameter of 8.4–19.3 mm, cut to the length you order.
UL1277 at a glance
- 12–18 AWG, across 32 listed constructions
- Stranded conductor throughout the documented range
- Insulation wall 0.76 mm
- Overall diameter 8.4–19.3 mm
- Max. conductor resistance 5.64–21.8 Ω/km at 20 °C DC (roughly 1.7–6.6 Ω per 1,000 ft)
- Core counts listed: 3, 4, 5, 6, 7, 8, 9, 10
How UL1277 compares with its nearest alternatives
UL1277 and UL4703 sit in the same catalogue group but are rated differently. Overall diameter runs 8.4–19.3 mm for UL1277 against 5.6–8 mm for UL4703. UL4703 is the tighter of the two, so UL1277 is the option to take only when the larger diameter is acceptable. Size coverage is 12–18 AWG against 8–12 AWG.
Conductor, core count and shielding
Every construction listed for UL1277 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.
Core counts run from 3 to 10 in the documented range. Overall diameter grows with core count, so the figure to quote for gland, grommet and connector selection is the finished-cable diameter column rather than the single-core insulation diameter.
How to read the UL1277 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 UL1277
Which sizes of UL1277 are available?
12–18 AWG, across the 32 constructions in the table below. Sizes outside the table can be quoted on request.
Is UL1277 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 UL1277 run to?
The documented range is 8.4–19.3 mm. Quote the size, not the style alone, when the diameter has to fit a specific gland, grommet or channel.
Manufacturer product data
- Rated temperature: 75 °C / 90 °C
- Rated voltage: 600 V / 2000 V
- Reference standards: UL 44, UL 1277, CSA C22.2 No.38-18, CSA C22.2 No.230, CSA C22.2 No.239
- Conductor: tinned or bare copper
- XLPE insulation; XLPE/PVC jacket
- Tinned wire braid shield
- Passes FT4 and FT1 flame tests
- Application: photovoltaic, power, lighting, control and signal circuits on cable trays or outdoor supports
Detailed specification table
Scroll horizontally to view all specifications
| AWG | Construction (No./mm) | Conductor diameter (mm) | Core count | Insulation thickness (mm) | Insulation O.D. (mm) | Tape | Jacket thickness (mm) | Jacket O.D. (mm) | Max. conductor resistance (Ω/km, 20°C, DC) | Rating voltage (V) |
|---|---|---|---|---|---|---|---|---|---|---|
| 18 | 16/0.254 | 1.17 | 3 | 0.76 | 2.70 | Non-woven fabric | 1.14 | 8.4 | 21.8 | 600 |
| 18 | 16/0.254 | 1.17 | 4 | 0.76 | 2.70 | Non-woven fabric | 1.14 | 9.1 | 21.8 | 600 |
| 18 | 16/0.254 | 1.17 | 5 | 0.76 | 2.70 | Non-woven fabric | 1.14 | 9.9 | 21.8 | 600 |
| 18 | 16/0.254 | 1.17 | 6 | 0.76 | 2.70 | Non-woven fabric | 1.14 | 10.7 | 21.8 | 600 |
| 18 | 16/0.254 | 1.17 | 7 | 0.76 | 2.70 | Non-woven fabric | 1.14 | 10.7 | 21.8 | 600 |
| 18 | 16/0.254 | 1.17 | 8 | 0.76 | 2.70 | Non-woven fabric | 1.14 | 11.5 | 21.8 | 600 |
| 18 | 16/0.254 | 1.17 | 9 | 0.76 | 2.70 | Non-woven fabric | 1.14 | 12.6 | 21.8 | 600 |
| 18 | 16/0.254 | 1.17 | 10 | 0.76 | 2.70 | Non-woven fabric | 1.14 | 13.4 | 21.8 | 600 |
| 16 | 26/0.254 | 1.49 | 3 | 0.76 | 3.10 | Non-woven fabric | 1.14 | 9.2 | 14.6 | 600 |
| 16 | 26/0.254 | 1.49 | 4 | 0.76 | 3.10 | Non-woven fabric | 1.14 | 10.1 | 14.6 | 600 |
| 16 | 26/0.254 | 1.49 | 5 | 0.76 | 3.10 | Non-woven fabric | 1.14 | 10.9 | 14.6 | 600 |
| 16 | 26/0.254 | 1.49 | 6 | 0.76 | 3.10 | Non-woven fabric | 1.14 | 11.9 | 14.6 | 600 |
| 16 | 26/0.254 | 1.49 | 7 | 0.76 | 3.10 | Non-woven fabric | 1.14 | 11.9 | 14.6 | 600 |
| 16 | 26/0.254 | 1.49 | 8 | 0.76 | 3.10 | Non-woven fabric | 1.14 | 12.8 | 14.6 | 600 |
| 16 | 26/0.254 | 1.49 | 9 | 0.76 | 3.10 | Non-woven fabric | 1.52 | 14.8 | 14.6 | 600 |
| 16 | 26/0.254 | 1.49 | 10 | 0.76 | 3.10 | Non-woven fabric | 1.52 | 15.7 | 14.6 | 600 |
| 14 | 41/0.254 | 1.88 | 3 | 0.76 | 3.50 | Non-woven fabric | 1.14 | 10.1 | 8.96 | 600 |
| 14 | 41/0.254 | 1.88 | 4 | 0.76 | 3.50 | Non-woven fabric | 1.14 | 11.0 | 8.96 | 600 |
| 14 | 41/0.254 | 1.88 | 5 | 0.76 | 3.50 | Non-woven fabric | 1.14 | 12.0 | 8.96 | 600 |
| 14 | 41/0.254 | 1.88 | 6 | 0.76 | 3.50 | Non-woven fabric | 1.14 | 13.1 | 8.96 | 600 |
| 14 | 41/0.254 | 1.88 | 7 | 0.76 | 3.50 | Non-woven fabric | 1.14 | 13.1 | 8.96 | 600 |
| 14 | 41/0.254 | 1.88 | 8 | 0.76 | 3.50 | Non-woven fabric | 1.52 | 14.9 | 8.96 | 600 |
| 14 | 41/0.254 | 1.88 | 9 | 0.76 | 3.50 | Non-woven fabric | 1.52 | 16.3 | 8.96 | 600 |
| 14 | 41/0.254 | 1.88 | 10 | 0.76 | 3.50 | Non-woven fabric | 1.52 | 17.3 | 8.96 | 600 |
| 12 | 65/0.254 | 3.29 | 3 | 0.76 | 4.00 | Non-woven fabric | 1.14 | 11.2 | 5.64 | 600 |
| 12 | 65/0.254 | 3.29 | 4 | 0.76 | 4.00 | Non-woven fabric | 1.14 | 12.2 | 5.64 | 600 |
| 12 | 65/0.254 | 3.29 | 5 | 0.76 | 4.00 | Non-woven fabric | 1.14 | 13.4 | 5.64 | 600 |
| 12 | 65/0.254 | 3.29 | 6 | 0.76 | 4.00 | Non-woven fabric | 1.52 | 15.3 | 5.64 | 600 |
| 12 | 65/0.254 | 3.29 | 7 | 0.76 | 4.00 | Non-woven fabric | 1.52 | 15.3 | 5.64 | 600 |
| 12 | 65/0.254 | 3.29 | 8 | 0.76 | 4.00 | Non-woven fabric | 1.52 | 16.5 | 5.64 | 600 |
| 12 | 65/0.254 | 3.29 | 9 | 0.76 | 4.00 | Non-woven fabric | 1.52 | 18.1 | 5.64 | 600 |
| 12 | 65/0.254 | 3.29 | 10 | 0.76 | 4.00 | Non-woven fabric | 1.52 | 19.3 | 5.64 | 600 |
Source specification sheet: TC_ER_UL1277_page1_EN.png, TC_ER_UL1277_page2_EN.jpg, 托架电缆UL1277目录_1.jpg, 托架电缆UL1277目录_2.jpg.
Request a quote for this line
Tell us the style, AWG, colour and quantity — or attach nothing and just describe the requirement. We reply to every enquiry.
