FR-EPR/CPE Tray Cable – Unshielded

Unshielded tray cable is typically appropriate when the circuit does not require protection from significant electromagnetic or radio-frequency interference.

In many industrial control and power applications, shielding is unnecessary when signal sensitivity is low, cable routing keeps conductors away from major interference sources, or the circuit is primarily carrying power rather than low-level instrumentation signals. Shielded cable may be preferable when cables run near variable-frequency drives, large motors, switching equipment or other sources of electrical noise.

FR-EPR refers to the flame-retardant ethylene propylene rubber insulation, while CPE refers to the chlorinated polyethylene outer jacket.

These materials are used because they provide a combination of electrical insulation, flexibility and physical durability suitable for demanding industrial environments. The exact performance characteristics of a cable should always be confirmed against its published specification when resistance to heat, chemicals, oils, moisture or other environmental conditions is critical to the installation.

Yes, it can be well suited for many industrial control applications that require a rugged multi-conductor cable.

Industrial control systems often need cables that can carry power or control signals between equipment, motors, controllers and other system components. The correct cable should be selected according to conductor count, conductor size, voltage, installation environment and any applicable code or equipment requirements.

Conductor count is determined by the number of circuits, signals or control functions the cable must support.

The electrical design should identify each required conductor, including any necessary control, power, neutral or grounding conductors. It is also worth considering whether future expansion could justify additional conductors, but conductor count should ultimately follow the system design and applicable electrical requirements rather than simply choosing the largest available configuration.

Provide the conductor size, number of conductors, required footage, voltage and any project-specific installation requirements.

Additional details such as tray installation, exposed-run requirements, environmental conditions and applicable specifications can help narrow the selection. Providing complete application information also makes it easier to confirm whether an unshielded FR-EPR/CPE cable is appropriate or whether another tray cable construction would be better suited to the project.