Tray-Rated Control Cables

Tray cable (TC) is a viable alternative to traditional command and power cables (MTW, ST, SJT, SOOW, THHN, etc.) used in industrial applications. Products that are UL listed also meet NFPA 79 requirements, which allows users to store only one cable type in their warehouse.

Where are Flexible Tray Cables Located?

Use the additional information section at right for a larger image.

Why Use Flexible Tray Cables?

Here are some reasons for when and why you should consider using flexible, tray-rated cable in the United States:

Applicable Industries

Industrial Automation, Event, Theater and Stage Engineering, Food and Beverage, Machine Building, Material Handling, New Plant/Facility Construction, Renewable Energy, Robotics, Wood, Pulp and Paper Manufacturing, and Ferrous/Non-ferrous Metal Manufacturing, among many others.


Cables that are TC rated are capable of being installed in cable trays instead of in conduit. Compared to less flexible Class B-stranded tray cable, finely-stranded (Class K) cables have a much smaller bend radius due to their increased flexibility. Therefore, installers can have tighter cable routing, and easily terminate using standard cable glands instead of using conduit which is more labor intensive to install, costs more to inspect, and harder to move during a plant reconfiguration. Overall, this results in substantial cost savings in both materials and labor (reduced installation time). Additionally, tray cables can exit the tray and be exposed for up to six feet if they are exposed run (-ER) rated, i.e. TC-ER, PLTC-ER, ITC-ER.

Finally, tray cables are safe for use in Class 1, Division 2 hazardous locations (gases and vapors not normally present, but may appear), Class 2 control circuits, and when needed they can be directly buried or installed in sunlight due to their resistance to UV rays.

Oil Resistance

Tray cable is rated Oil Res I/II to withstand many types of oils, lubricants and fluids, and therefore suitable for the demands of the electrical requirements found in industrial applications.

Operating Temperature

New compound formulations allow tray cables to operate at 90°C in both dry and wet applications. Additionally, they also pass the UL -40°C cold bend test and the -25°C cold impact test.


Most tray cable is approved for 600 V applications, but tray cables that are WTTC rated are approved for 1000 V applications such as in wind turbine applications.

Flame Retardancy

Tray cables are self-extinguishing and flame retardant according to the UL VW-1 (UL 1581) and the CSA FT4 Vertical Flame tests.


Tray cable’s versatility comes from the many approvals that it meets such as TC-ER (UL 1277), WTTC (UL 2277), PLTC-ER, ITC-ER, NFPA 79, MTW, CIC-TC FT-4 (C22.2 No. 230 & 239) and CSA AWM I/II A/B (C22.2 No. 210). For companies that heavily export, the CENELEC (CE) approval is required for tray cables to be used in the European Union. Having this stamp means that tray cable products conform to CE low-voltage directives.

What Sets HELUKABEL® TRAYCONTROL® Apart from the Competition?

Besides meeting the requirements listed on spec, the TRAYCONTROL® series stands out from the rest in terms of:


HELUKABEL®'s TRAYCONTROL® series is very flexible due to its fine (Class K) stranding. Most tray cables on the marketing are Class B. Special compounds and short cable lay make it very flexible so it is easy to pull through conduit and long tray applications. More flexibility in the conductors makes installation in tight spaces and small bend radii simple.

Better Construction

Through the use of sophisticated cable design software and pressure-extrusion equipment, the TRAYCONTROL®’s outer jacket has a smooth (non-convoluted) appearance making it perfectly sealed from the intrusion of water and harsh chemicals in cable compartments or panels when using cable gland protection. Some TRAYCONTROL® products also use XLPE insulation, which is ideal for applications that require long cable runs due to its low capacitance.

Construction Variety

300, 600, or 1000V constructions, shielded and unshielded, multi-conductor or twisted pairs. High-grade electronic insulation in 300V cables. Cable sizes ranging from 26 AWG to 500 kcmil.

Drag Chain Compatible

With proper installation parameters TRAYCONTROL® is suitable for up to 3 Million cycles (4-18 AWG only) in drag chain applications.


Conductors are easy to read with large numbered conductors, color-specific conductors (upon request), and colored grounds ensure there is no question which conductor goes where.

Tray-Rated Control Cable Products

300V Control Cables

PVC/Nylon - Gray PVC Jacket

PVC/Nylon, Twisted Pairs - Gray PVC Jacket

600/1000V Control Cables

PVC/Nylon - Black PVC Jacket

PVC/Nylon - Gray PVC Jacket

XLPE - Black PVC Jacket

PVC/Nylon - TPE Jacket

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