TE.CO Grey Cable TFX 4G 1.5 ST 470m UNEL Grey with PLC Coil

The TE.CO grey cable type TFX 4G 1.5 is a 470-meter drum of flexible power and control cable finished in UNEL grey. Designed for fixed or occasional flexible installation in industrial environments, this cable is particularly suited for wiring PLC output coils, motor contactors, and distribution panels. It complies with European harmonized standards for low voltage power and control applications.

Conductor and Insulation

Conductor: Bare copper, class 5 flexible stranded according to IEC 60228. Cross-section: 4 x 1.5 mm², comprising three phase conductors and one protective earth conductor. Insulation: PVC type TI6, with colour-coded cores: brown, black, grey, and green-yellow for earth. Insulation thickness: 0.6 mm. The cable is oil-resistant and flame retardant according to IEC 60332-1-2. The flexible stranding reduces the risk of conductor breakage at PLC terminal points.

Outer Sheath and Colour

Outer sheath: PVC type TM5, colour UNEL grey (similar to RAL 7001). Sheath thickness: 1.2 mm. Overall diameter: approximately 9.5 mm. The grey colour is standard for industrial control circuits, distinguishing control wiring from main power distribution cables. The sheath is resistant to UV light, ozone, and common industrial chemicals including diluted acids and alkalis, ensuring long service life in factory environments.

Electrical and Thermal Ratings

Rated voltage: 450/750V AC. Test voltage: 2500V AC for 5 minutes. Current carrying capacity: 22A for fixed installation at 30°C ambient temperature. Maximum conductor temperature: 70°C during normal operation, 160°C under short circuit conditions (maximum 5 seconds). Insulation resistance: greater than 10 MΩ·km. The cable has low capacitance (approximately 80 pF/m), making it suitable for transmitting PLC output signals to solenoid valves and relay coils.

Mechanical Properties

Minimum bending radius: 6 times cable diameter for fixed installation, 12 times diameter for flexible use. Tensile strength: 10 N/mm². The cable withstands frequent flexing in cable carriers, tested to 3 million cycles. Operating temperature range: -15°C to +70°C for fixed installation, -5°C to +70°C for flexible use. The 470-meter length on a wooden drum simplifies large-scale wiring projects across multiple control cabinets.

Integration with PLC Coils

The designation “with PLC coil” indicates that this cable is optimized for wiring output modules to relay or contactor coils in PLC control panels. Its flexible stranded conductors facilitate connection to spring-clamp terminals common on modern PLC I/O cards. The green-yellow earth conductor provides equipment grounding for the PLC chassis. The UNEL grey colour is regularly specified by system integrators for 24V DC or 230V AC control circuits, enabling visual differentiation from power cables.

Applications

Typical applications include control panel internal wiring, interconnection of sensors and actuators, power supply to small motors (up to 3kW), and connection of PLC output cards to solenoid valves and indicator lamps. The cable is also suitable for fixed installation in conduits, cable trays, and under floor ducts. For moving applications, installation in cable carriers with appropriate bending radius is recommended.

Compliance and Certifications

Complies with HAR (Harmonized) standard HD 21.5 S3, VDE 0281-5, CE low voltage directive 2014/35/EU, and RoHS 2011/65/EU. The cable is also UL and CSA recognized under flexible cord designation. Fire performance: flame retardant, not propagating fire. The cable is manufactured under ISO 9001 certified processes.

Installation Guidelines

Unwind the full 470m length from the drum without kinking. Use appropriate cable glands with IP rating matching the enclosure. Do not exceed pulling tension of 50N per mm² of copper cross-section. For PLC coil connections, maintain separation from high-power cables to reduce inductive noise pickup. The cable should be routed away from heat sources and sharp edges.

Storage and Shelf Life

Store the drum indoors in a dry environment between -5°C and +40°C. Avoid direct sunlight and moisture. The cable has a service life exceeding 20 years in normal industrial conditions when stored and installed properly.

Conclusion

The TE.CO TFX 4G 1.5 grey cable in 470m UNEL grey reel provides a cost-effective, reliable solution for power and control circuits in PLC-based automation systems. Its flexible construction, regulatory compliance, and 470-meter length make it suitable for large-scale industrial projects.