UL 44 XHHW-2 Unscreened Control Cable 600V
UL 44 XHHW-2 Unscreened Control Cable is a 600V multicore control cable using bare annealed copper conductors, flame-retardant XLPE insulation and a black special-PVC outer sheath. It is intended for industrial control circuits where a thermoset-insulated XHHW-2 construction is required without an overall metallic screen.
PRODUCT OVERVIEW
The defining feature of this product is its XHHW-2 insulation system. Each conductor is insulated with flame-retardant cross-linked polyethylene (XLPE), giving the cable the thermoset-insulated construction associated with UL 44. The source product data lists a 600V voltage rating and a +90°C temperature rating.
The complete cable is unscreened and uses a black special-PVC outer sheath. The source product data lists use in the oil industry, Class 1, Division 2 hazardous locations, trays, wireways, ducts, conduit, aerial installations with messenger support, direct burial, wet or dry locations and outdoor cable trays where sunlight resistance is required.
KEY FEATURES
- UL 44 referenced XHHW-2 thermoset-insulated construction.
- 600V voltage rating and +90°C product temperature rating.
- Bare annealed copper conductors.
- Flame-retardant XLPE insulation.
- Unscreened construction with no overall metallic screen.
- Black special-PVC outer sheath.
- 10 AWG and 12 AWG listed sizes.
- Multicore constructions listed from 2 to 50 cores.
CABLE CONSTRUCTION
Conductor | Bare annealed copper |
Insulation | Flame-retardant XLPE (Cross-Linked Polyethylene) |
Binder Tape | Present in the listed construction; material not stated in the source data |
Ripcord | Nylon |
Metallic Screen | None |
Outer Sheath | Special PVC (Polyvinyl Chloride), black |
Core Identification | Not specified in the source product data; confirm project requirement |
UL 44 / XHHW-2 DESIGN FOCUS
Focus | How It Relates to This Product |
Thermoset Insulation | Flame-retardant XLPE around each conductor |
Voltage Class | 600V listed in the product data |
Temperature | Product data lists +90°C |
Wet / Dry Use | Both are stated in the application description |
Multiple-Conductor Construction | The schedule covers multicore assemblies from 2 to 50 cores |
Unscreened Design | No metallic screen is listed in the product construction |
XHHW-2 VS THHN/THWN-2
Feature | XHHW-2 | THHN/THWN-2 |
Main Insulation System | Flame-retardant XLPE | PVC-FR with Nylon layer |
Material Family | Thermoset | Thermoplastic |
Primary Insulation Standard | UL 44 | UL 83 |
Temperature in AMPO Source Data | 90°C | 90°C |
Nylon Layer | Not listed | Listed |
Typical Selection Focus | XLPE thermoset insulation and wet/dry industrial service | PVC/Nylon insulated conductor system |
Both product families can appear in similar industrial control applications, but the insulation systems are different. The XHHW-2 page should therefore be selected when the project specifically requires the UL 44 / XLPE thermoset-insulated construction.
PRODUCT APPLICATIONS
- Oil-industry control and auxiliary circuits.
- Class 1, Division 2 hazardous-location applications as stated in the source product data.
- Cable trays and wireways.
- Duct and conduit installations.
- Aerial installations when properly supported by a messenger.
- Direct-burial applications as stated in the source product data.
- Wet or dry locations.
- Outdoor cable trays where a sunlight-resistant rating is required.
Description
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The following table reproduces the listed XHHW-2 unscreened product schedule for 10 AWG and 12 AWG multicore constructions.
| Cores | AWG | Insulation mm | Sheath mm | Overall Dia. mm | Weight kg/km | Nominal Ampacity A |
|---|---|---|---|---|---|---|
| 2 | 10 | 0.76 | 1.14 | 11.94 | 190 | 40.0 |
| 3 | 10 | 0.76 | 1.14 | 12.57 | 259 | 40.0 |
| 4 | 10 | 0.76 | 1.14 | 13.84 | 332 | 32/40 |
| 5 | 10 | 0.76 | 1.52 | 16.00 | 432 | 32.0 |
| 6 | 10 | 0.76 | 1.52 | 17.40 | 507 | 32.0 |
| 7 | 10 | 0.76 | 1.52 | 17.40 | 568 | 28.0 |
| 8 | 10 | 0.76 | 1.52 | 18.80 | 607 | 28.0 |
| 9 | 10 | 0.76 | 1.52 | 20.32 | 713 | 28.0 |
| 10 | 10 | 0.76 | 1.52 | 21.72 | 752 | 20.0 |
| 11 | 10 | 0.76 | 2.03 | 23.11 | 865 | 20.0 |
| 12 | 10 | 0.76 | 2.03 | 23.75 | 932 | 20.0 |
| 13 | 10 | 0.76 | 2.03 | 24.13 | 997 | 20.0 |
| 14 | 10 | 0.76 | 2.03 | 24.89 | 1064 | 20.0 |
| 15 | 10 | 0.76 | 2.03 | 25.65 | 1131 | 20.0 |
| 20 | 10 | 0.76 | 2.03 | 28.58 | 1463 | 20.0 |
| 25 | 10 | 0.76 | 2.03 | 32.00 | 1799 | 18.0 |
| 30 | 10 | 0.76 | 2.03 | 34.16 | 2124 | 18.0 |
| 35 | 10 | 0.76 | 2.03 | 36.32 | 2447 | 16.0 |
| 40 | 10 | 0.76 | 2.03 | 38.35 | 2770 | 16.0 |
| 45 | 10 | 0.76 | 2.03 | 40.77 | 3098 | 14.0 |
| 50 | 10 | 0.76 | 2.03 | 42.29 | 3417 | 14.0 |
| 2 | 12 | 0.76 | 1.14 | 10.67 | 140 | 30.0 |
| 3 | 12 | 0.76 | 1.14 | 11.30 | 188 | 30.0 |
| 4 | 12 | 0.76 | 1.14 | 12.32 | 238 | 24.0/30.0 |
| 5 | 12 | 0.76 | 1.14 | 13.59 | 289 | 24.0 |
| 6 | 12 | 0.76 | 1.52 | 15.49 | 366 | 24.0 |
| 7 | 12 | 0.76 | 1.52 | 15.49 | 406 | 21.0 |
| 8 | 12 | 0.76 | 1.52 | 16.76 | 432 | 21.0 |
| 9 | 12 | 0.76 | 1.52 | 18.03 | 507 | 21.0 |
| 10 | 12 | 0.76 | 1.52 | 19.18 | 530 | 15.0 |
| 11 | 12 | 0.76 | 1.52 | 19.56 | 573 | 15.0 |
| 12 | 12 | 0.76 | 1.52 | 20.19 | 619 | 15.0 |
| 13 | 12 | 0.76 | 1.52 | 20.57 | 662 | 15.0 |
| 14 | 12 | 0.76 | 1.52 | 21.21 | 708 | 15.0 |
| 15 | 12 | 0.76 | 1.52 | 21.84 | 753 | 15.0 |
| 19 | 12 | 0.76 | 1.52 | 24.26 | 975 | 15.0 |
| 20 | 12 | 0.76 | 1.52 | 25.27 | 1025 | 15.0 |
| 25 | 12 | 0.76 | 1.52 | 28.32 | 1260 | 13.5 |
| 30 | 12 | 0.76 | 1.52 | 30.23 | 1481 | 13.5 |
| 35 | 12 | 0.76 | 1.52 | 32.13 | 1700 | 12.0 |
| 37 | 12 | 0.76 | 1.52 | 32.13 | 1897 | 12.0 |
| 40 | 12 | 0.76 | 1.52 | 33.91 | 1918 | 12.0 |
| 45 | 12 | 0.76 | 1.52 | 35.81 | 2140 | 10.5 |
| 50 | 12 | 0.76 | 1.52 | 37.21 | 2354 | 10.5 |
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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
Bare annealed copper conductors are insulated with flame-retardant XLPE, assembled into the required multicore construction, provided with the listed binder/ripcord arrangement and finished with the black special-PVC outer sheath.
Inspection
Inspection focuses on conductor condition, XLPE insulation thickness, sheath thickness, overall diameter, cable weight, electrical performance and consistency with the approved product schedule.
Packaging
Finished cable is wound on suitable reels or drums according to cable size, weight and ordered length. Product identification can include standard reference, AWG size, core count, length and project reference.
Shipping
Before shipment, cable identification, packing and requested technical documentation are checked against the order. Project-specific inspection or approval documents should be confirmed before production.
Frequently Asked Questions
When should I choose XHHW-2 instead of THHN/THWN-2?
Choose XHHW-2 when the project calls for a UL 44 thermoset-insulated conductor system using XLPE. THHN/THWN-2 uses a PVC/Nylon insulation system and is normally associated with UL 83. The correct choice should follow the project specification, installation environment and required cable listing.
Does the absence of a screen limit where this cable can be used?
The unscreened construction is suitable where the circuit does not require an overall metallic shield. If the cable will be routed near significant interference sources or the project explicitly requires screened control cable, a screened construction should be reviewed instead.
Can this cable be used in wet or dry locations?
Yes. Wet and dry locations are both stated in the source product application. For formal approval, confirm the required wet-location and XHHW-2 markings on the supplied cable documentation.
What should be checked for Class 1, Division 2 use?
The product data lists Class 1, Division 2 hazardous locations. The complete installation also depends on the governing electrical code, fittings, seals, wiring method and project approval requirements, so the cable should be reviewed as part of the whole hazardous-location design.
What products do you supply for the power cable industry?
We provide a wide range of cable materials and electrical products, including aluminum conductors, aluminum rods, aluminum wires, overhead conductors, medium and low voltage power cables, cable insulation materials, filling materials, shielding materials, and cable manufacturing consumables.We provide customized solutions according to different cable manufacturing requirements.
What information is needed for quotation?
Provide AWG size, number of cores, length, installation method and required ratings such as direct burial, wet location, sunlight resistance or hazardous-location use. Also state the UL documentation, cable marking, reel length and inspection documents required by the project.
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