High temperature rated PVC insulated single core cable. 105°C conductor temperature, 300/500V. For wiring near heat sources in appliances, industrial equipment, and automotive applications.
Standard PVC insulated cables are rated for a maximum conductor temperature of 70°C — adequate for most building wiring applications. High temperature PVC compounds extend this rating to 105°C, providing a 50% increase in thermal headroom that is critical for wiring in close proximity to heat sources: motor windings, heating elements, engine bay components, and industrial equipment where ambient temperatures routinely exceed the limits of standard PVC.
The 105°C rating also increases the current-carrying capacity of a given cross-section — a 2.5mm² cable rated at 70°C carries approximately 24A; the same cross-section at 105°C can carry approximately 32A under the same installation conditions, allowing a smaller cross-section to be used where the higher temperature rating can be exploited.
| Parameter | Value |
|---|---|
| Rated Voltage | 300/500V |
| Max Conductor Temp | 105°C |
| Conductor | Class 5 or Class 2 Cu |
| Cross-Sections | 0.5–16 mm² |
| Insulation | High-temp PVC |
| Flex Temp Range | −15°C to +105°C |
Any cable that runs within 50mm of a heating element, motor frame, or exhaust component should be specified with the 105°C rating. Standard 70°C PVC insulation begins to soften and deform at temperatures above 80°C — losing dielectric strength and becoming brittle over time, leading to insulation failure.
In equipment where cable routing space is limited, using 105°C rated cable allows a smaller cable cross-section to carry the required current — reducing the cable OD and improving routing flexibility without compromising the thermal safety margin.
