UL 1277 XHHW/XLPO Type TC Control Cable 600V
UL 1277 XHHW/XLPO Type TC Control Cable is a 600V multicore industrial control cable with stranded bare annealed copper conductors, flame-retardant XLPE insulation and a low-smoke halogen-free polyethylene (XLPO) outer jacket. It is intended for Type TC control and power circuits where compact construction, flame performance and reduced smoke/halogen emissions are important.
PRODUCT OVERVIEW
The cable uses stranded bare annealed copper conductors insulated with flame-retardant and moisture-resistant cross-linked polyethylene (XLPE). The overall jacket is low-smoke halogen-free polyethylene (XLPO), with black preferred unless another colour is requested.
The product data identifies typical installations in cable trays, raceways and outdoor messenger-supported routes. It is also listed for direct burial, Class 1, Division 2 hazardous locations and Class 1 control circuits. Constructions with three or more conductors are stated as suitable for exposed runs (TC-ER) per NEC 336.10, and conductors may be used in wet or dry locations at temperatures up to 90°C.
KEY FEATURES
- UL 1277 Type TC control / tray cable product basis.
- 600V product rating.
- Wet or dry location use up to 90°C as stated in the source data.
- Stranded bare annealed copper conductors.
- Flame-retardant and moisture-resistant XLPE insulation.
- Low-smoke halogen-free polyethylene (XLPO) outer jacket.
- Direct burial and Class 1, Division 2 applications stated in the source.
- TC-ER exposed-run construction stated for 3 or more conductors.
- AWG 14, 12 and 10 parameter schedules.
CABLE CONSTRUCTION
Conductor | Stranded bare annealed copper |
Conductor Sizes | AWG 14, AWG 12 and AWG 10 |
Insulation | Flame-retardant and moisture-resistant Cross-Linked Polyethylene (XLPE) |
Outer Jacket | Low-smoke halogen-free polyethylene (XLPO) |
Jacket Colour | Upon request; black preferred |
Voltage Rating | 600V |
Temperature | Wet or dry locations, not exceeding 90°C |
Screen / Armour | None stated |
STANDARD REFERENCE & COMPLIANCE
Item | Details |
Referenced Standard | UL 1277 – Electrical Power and Control Tray Cables |
Current Status | Active |
Current Edition | Edition 6 |
Current Published Revision | May 29, 2025 |
Product Designation | XHHW/XLPO Type TC Control Cable, 600V |
Compliance Note | Confirm the required UL listing/marking and specific ratings such as TC-ER, direct burial, wet location, outdoor use and hazardous-location use on the offered cable documentation. |
UL 1277 is the main product standard for this cable family because it addresses the complete electrical power/control tray-cable assembly. The currently published standard remains Edition 6 with the latest formal revision dated May 29, 2025; later 2026 CSDS proposals should not be presented as an already-effective revision.
UL 1277 TYPE TC DESIGN FOCUS
UL 1277 Focus | How It Applies to This Cable |
Complete Cable Assembly | Multicore XLPE-insulated conductors under an overall XLPO jacket |
Cable Tray / Raceway Use | Primary installations include cable trays and raceways |
Outdoor Installation | Outdoor messenger-supported locations are stated |
Direct Burial | Listed in the source product application |
Wet / Dry Locations | Both are stated up to 90°C |
Hazardous Locations | Class 1, Division 2 use is stated; full installation requirements still apply |
TC-ER | 3 or more conductors are stated as listed for exposed runs |
WHY XLPO JACKET?
The key differentiator of this product is the XLPO outer jacket. The source identifies it as a low-smoke halogen-free polyethylene jacket, making this construction suitable for projects that prefer reduced smoke and halogen emissions compared with conventional halogen-containing jacket systems.
The XLPO jacket should not be treated as automatically equivalent to every LSOH or low-smoke formulation on the market. Where a tender specifies particular smoke, halogen or flame-test limits, confirm the required test standards and supporting reports for the offered XLPO construction.
XHHW/XLPO VS XHHW/PVC VS XHHW/CPE
Feature | XHHW/XLPO | XHHW/PVC | XHHW/CPE |
Insulated Conductors | XLPE | FRXLPE | FRXLPE |
Outer Jacket | Low-smoke halogen-free polyethylene (XLPO) | Flame-retardant PVC | Flame-retardant CPE |
Primary Procurement Difference | Low-smoke / halogen-free jacket requirement | PVC-jacketed Type TC requirement | CPE-jacketed Type TC requirement |
Typical Page Intent | LSZH/XLPO Type TC cable | PVC Type TC cable | CPE Type TC cable |
PRODUCT APPLICATIONS
- Industrial power and control circuits where compact flame-retardant cable is required.
- Cable trays and raceways.
- Outdoor messenger-supported installations.
- Direct-burial routes where the required cable marking is confirmed.
- Wet or dry industrial locations up to 90°C.
- Class 1, Division 2 hazardous-location projects as stated in the source.
- TC-ER exposed-run applications for qualifying constructions with 3 or more conductors.
- Projects that prefer a low-smoke halogen-free polyethylene jacket.
The following schedule reproduces the listed XHHW/XLPO Type TC cable dimensions and approximate weights for AWG 14, AWG 12 and AWG 10 constructions.
| AWG | Cores | Jacket in | Jacket mm | OD in | OD mm | Weight lb/kft | Weight kg/km |
|---|---|---|---|---|---|---|---|
| 14 | 2 | 0.045 | 1.14 | 0.349 | 8.86 | 63 | 94 |
| 14 | 3 | 0.045 | 1.14 | 0.370 | 9.40 | 87 | 129 |
| 14 | 4 | 0.045 | 1.14 | 0.403 | 10.24 | 106 | 157 |
| 14 | 5 | 0.045 | 1.14 | 0.440 | 11.18 | 125 | 186 |
| 14 | 6 | 0.045 | 1.14 | 0.479 | 12.17 | 146 | 218 |
| 14 | 7 | 0.045 | 1.14 | 0.479 | 12.17 | 164 | 245 |
| 14 | 8 | 0.060 | 1.52 | 0.549 | 13.94 | 201 | 299 |
| 14 | 9 | 0.060 | 1.52 | 0.588 | 14.94 | 223 | 332 |
| 14 | 10 | 0.060 | 1.52 | 0.638 | 16.21 | 247 | 367 |
| 14 | 12 | 0.060 | 1.52 | 0.659 | 16.74 | 285 | 424 |
| 14 | 15 | 0.060 | 1.52 | 0.730 | 18.54 | 347 | 517 |
| 14 | 19 | 0.060 | 1.52 | 0.765 | 19.51 | 424 | 630 |
| 14 | 20 | 0.060 | 1.52 | 0.808 | 20.52 | 446 | 664 |
| 14 | 25 | 0.080 | 2.03 | 0.938 | 23.83 | 582 | 866 |
| 14 | 30 | 0.080 | 2.03 | 0.991 | 25.17 | 680 | 1012 |
| 14 | 37 | 0.080 | 2.03 | 1.067 | 27.10 | 818 | 1217 |
| 12 | 2 | 0.045 | 1.14 | 0.384 | 9.75 | 85 | 127 |
| 12 | 3 | 0.045 | 1.14 | 0.408 | 10.36 | 115 | 172 |
| 12 | 4 | 0.045 | 1.14 | 0.445 | 11.30 | 147 | 219 |
| 12 | 5 | 0.045 | 1.14 | 0.487 | 12.37 | 171 | 255 |
| 12 | 6 | 0.060 | 1.52 | 0.562 | 14.27 | 217 | 323 |
| 12 | 7 | 0.060 | 1.52 | 0.562 | 14.27 | 244 | 363 |
| 12 | 8 | 0.060 | 1.52 | 0.607 | 15.42 | 275 | 410 |
| 12 | 9 | 0.060 | 1.52 | 0.651 | 16.54 | 307 | 457 |
| 12 | 10 | 0.060 | 1.52 | 0.709 | 18.01 | 340 | 506 |
| 12 | 12 | 0.060 | 1.52 | 0.732 | 18.59 | 396 | 589 |
| 12 | 15 | 0.080 | 2.03 | 0.813 | 20.65 | 484 | 721 |
| 12 | 19 | 0.080 | 2.03 | 0.896 | 22.76 | 628 | 934 |
| 12 | 20 | 0.080 | 2.03 | 0.942 | 23.93 | 661 | 984 |
| 12 | 25 | 0.080 | 2.03 | 1.043 | 26.49 | 811 | 1207 |
| 12 | 30 | 0.080 | 2.03 | 1.104 | 28.04 | 953 | 1418 |
| 12 | 37 | 0.080 | 2.03 | 1.190 | 30.23 | 1152 | 1714 |
| 10 | 2 | 0.045 | 1.14 | 0.431 | 10.95 | 116 | 172 |
| 10 | 3 | 0.045 | 1.14 | 0.459 | 11.66 | 161 | 239 |
| 10 | 4 | 0.045 | 1.14 | 0.502 | 12.75 | 205 | 306 |
| 10 | 5 | 0.060 | 1.52 | 0.581 | 14.76 | 260 | 387 |
| 10 | 6 | 0.060 | 1.52 | 0.632 | 16.05 | 306 | 455 |
| 10 | 7 | 0.060 | 1.52 | 0.632 | 16.05 | 346 | 514 |
| 10 | 8 | 0.060 | 1.52 | 0.685 | 17.40 | 392 | 583 |
| 10 | 9 | 0.060 | 1.52 | 0.736 | 18.69 | 437 | 651 |
| 10 | 10 | 0.060 | 1.52 | 0.803 | 20.40 | 485 | 721 |
| 10 | 12 | 0.080 | 2.03 | 0.870 | 22.10 | 599 | 892 |
| 10 | 15 | 0.080 | 2.03 | 0.964 | 24.49 | 733 | 1091 |
| 10 | 19 | 0.080 | 2.03 | 1.014 | 25.76 | 901 | 1340 |
| 10 | 20 | 0.080 | 2.03 | 1.066 | 27.08 | 949 | 1412 |
| 10 | 25 | 0.080 | 2.03 | 1.184 | 30.07 | 1168 | 1739 |
| 10 | 30 | 0.080 | 2.03 | 1.254 | 31.85 | 1379 | 2052 |
| 10 | 37 | 0.080 | 2.03 | 1.355 | 34.42 | 1674 | 2491 |
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From Production to Delivery
From raw material preparation to final shipmen, every stage is caretuly controled to ensure consistent conductor quality, reliable pertormance,and sae delivery. Our roduction,
inspection, packaging, and logistics processes are managed in accordance with applicable standards and project requirements.
Production
Stranded bare annealed copper conductors are insulated with XLPE, assembled into the required multicore construction and finished with the low-smoke halogen-free XLPO jacket.
Inspection
Inspection focuses on conductor construction, insulation and jacket condition, finished dimensions, cable weight, cable marking and the documentation required by the project.
Packaging
Finished cable is wound on reels or drums according to cable size, weight and ordered length. Product identification can include AWG size, core count, standard reference, length and project reference.
Shipping
Before shipment, cable identification, packing and requested test / approval documents are checked against the order. Project-specific documentation requirements should be agreed before production.
Frequently Asked Questions
When should I choose XHHW/XLPO instead of XHHW/PVC or XHHW/CPE?
Choose XHHW/XLPO when the project specifically values a low-smoke halogen-free polyethylene outer jacket. The PVC and CPE versions remain separate constructions with different jacket materials and approval bases. The correct choice should follow the tender specification, environmental requirements and required fire/smoke documentation.
Does XLPO automatically mean the cable meets every LSZH test standard?
No. The source describes the jacket as low-smoke halogen-free polyethylene, but it does not list specific IEC 60754, IEC 61034 or other LSZH test results on this product sheet. If a project specifies exact smoke, halogen or flame limits, request the applicable test reports for the offered XLPO construction.
What is the difference between Type TC and TC-ER?
Type TC identifies the tray-cable product category. TC-ER applies to qualifying exposed-run constructions outside the tray under the relevant installation rules. The source states that constructions with three or more conductors are listed for exposed runs; confirm the exact ordered cable carries the required TC-ER marking.
Can this cable be used for direct burial or in hazardous locations?
The product data lists direct burial and Class 1, Division 2 applications. Formal project approval still depends on the actual cable markings/listing, fittings, seals, installation method and governing electrical code.
What should I confirm before ordering for a low-smoke project?
Confirm whether the project simply requires an XLPO/low-smoke halogen-free jacket or whether it specifies exact smoke-density, halogen-acid-gas or flame-test standards. Those detailed performance requirements should be stated before quotation so the supplier can match the construction and supporting documentation.
What information should I send for quotation?
Provide AWG size, number of cores, total length, installation method and required Type TC / TC-ER markings. Also state direct-burial, outdoor, wet-location, hazardous-location, RoHS and any low-smoke/halogen-free test-document requirements, plus reel length and cable marking.
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