Service Wire UL 1277 Dual Rated Tray Cable for 600V/1kV Applications

Customer Q&A:
DUAL RATED TRAY CABLE

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Understanding UL Dual
Rated Tray Cable: What Are the Advantages?

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OUR SOLUTION      FOLLOW-UP QUESTION

 

 

HOW TO SELECT TRAY CABLE

UL 1277 was recently updated, allowing UL approved tray cable to be dual rated for 600V/1kV applications. Here's what to look for when selecting dual rated, industrial grade tray cable.


To be dual rated, industrial grade tray cable must:

  • Use UL 1kV Conductors
  • Pass Increased AC Hipot Test
  • Meet Updated UL 1277 Standard


Advantages of Dual Rated Tray Cable:

  • More Robust Applications
  • Cost-Effective
  • Electrically Resilient
  • Smaller OD Than Traditional 1kV Tray Cables

 

A GUIDE TO UL LISTINGS

Underwriters Laboratory (UL) is a third-party safety consulting and certification company that sets standards for an array of commercial, industrial, and consumer products. UL evaluates more than 70 different wire and cable product categories for safety, performance, quality, environmental impact, and regulatory compliance.

Wire and cable products with a UL listing have been tested and approved by UL and meet the requirements of the National Electrical Code (NEC). A different file number is assigned for each approved construction and includes product specifications such as insulation material and voltage rating.

 

UL 1277: POWER AND CONTROL TRAY CABLE

UL 1277, the standard for electrical power and control tray cable, was recently updated, allowing manufacturers with UL approved tray cable to market their product as 600V/1kV rated. To be dual rated, products must use a recognized 1kV rated conductor and pass a higher voltage AC Hipot test on the completed cable. This test requires each insulated conductor in finished cable to withstand a specified voltage range for one minute without breakdown. If a product passes the AC Hipot test, it is suitable for 1kV use.

 

BENEFITS OF DUAL RATED TRAY CABLE

Dual rated tray cable is a more robust product. It is a cost-effective alternative for applications that require a lower voltage cable but are at risk for potential voltage spikes. For example, 1kV rated tray cable can withstand greater electrical adversity; the impact of a disruptive event on the cable is smaller, and the recovery time is faster than in a less resilient system.

UL dual rated tray cable also offers flexibility in newer constructions. With new 575V and 690V motors appearing, standard XHHW-2 tray cable can now be used because of its increased 1kV rating.

Additionally, dual rated tray cable has a smaller outside diameter than traditional 1kV tray cables, making it preferable in space-constrained installations.

 

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DUAL RATED TRAY CABLE

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Service Wire was among the first wire and cable manufacturers to secure the 600V/1kV dual rated UL listing—setting the precedent for our quality and commitment to ensuring your cable is compliant with the latest industry standards.

Our wide selection of UL 1277 compliant tray cable includes:

In fact, we stock over 140 tray cable variations—not many wire and cable suppliers can tout that level of service. Available dual rated 600V/1kV, 2 - 37 conductors, E1 and E2 color codes, shielded or non-shield in three jacket types, #14 AWG - 1000 Kcmil.

Tired to chasing down your tray cable spec? Get leading availability with the experts at Service Wire.
 

Request Quote

Dual Rated Tray Cable 600V/1kV

 

Dual Rated Tray Cable

TRAY CABLE

TC-ER Rated

  • XHHW-2 Inner Conductors
    Colored, Numbered, or Striped Conductors

AVAILABLE:
Dual Rated 600V/1kV or 2kV
#14 AWG - 750 Kcmil
2-37 Conductors
Tinned or Non-Tinned
Shielded or Non-Shielded
PVC, ServiceCPE®, or EnviroPLUS® Jacket

Shielded Tray Cable

SHIELDED TRAY CABLE

TC-ER Rated

  • XHHW-2 Inner Conductors
    Colored, Numbered, or Striped Conductors

AVAILABLE:
Dual Rated 600V/1kV or 2kV
#14 AWG - 750 Kcmil
2-37 Conductors
Tinned or Non-Tinned
PVC, ServiceCPE®, or EnviroPLUS® Jacket

Jacketed Tray Cable

JACKETED TRAY CABLE

TC-ER Rated

  • XHHW-2 Inner Conductors
    Colored, Numbered, or Striped Conductors

AVAILABLE:
Dual Rated 600V/1kV or 2kV
#14 AWG - 750 Kcmil
2-37 Conductors
Tinned or Non-Tinned
Shielded or Non-Shielded
PVC, ServiceCPE®, or EnviroPLUS® Jacket

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