Single-core halogen-free cable, resistant to high temperatures HELUTHERM® 145 1x2.5 mm² brown 51339

Highly durable cable.

Single-core halogen-free cable, resistant to high temperatures

This brown HELUTHERM® 145 single-core cable is designed for demanding applications where temperature resistance and fire safety are critical. Made of tinned copper with a cross-linked polyolefin copolymer insulation, it provides reliable conductivity and long-lasting performance. The cable is flexible thanks to its multi-wire strand construction, making it easy to install and route in tight spaces.

Construction and properties

The HELUTHERM® 145 cable features a construction that provides high resistance to extreme conditions. The copper core, meeting DIN VDE 0295 class 5 (or equivalent IEC 60228 class 5 and BS 6360 class 5), is multi-wire and flexible, resulting in easy installation even in difficult conditions. The cross-linked polyolefin copolymer insulation provides not only excellent electrical properties but also resistance to abrasion, oils, and UV radiation. Importantly, the materials used in production are cadmium-free and silicone-free, which affects the safety of use and minimizes the risk of corrosion.

This cable has a number of important features:

• Halogen-free: In the event of a fire, it does not release toxic gases and fumes, increasing evacuation safety. Meets the requirements of DIN VDE 0482 part 267 and IEC 60754-1/2.
• High temperature resistance: Allows operation in a temperature range from -35°C to +120°C (flexible) and from -55°C to +145°C (stationary), making it an ideal solution for applications in heating or lighting devices.
• Resistance to external factors: Exhibits resistance to UV radiation, ozone and weather conditions, allowing it to be used both indoors and outdoors.
• Reduced fire propagation: Compliant with DIN EN 45545-2 and IEC 60332-3-22, confirming its fire-retardant properties.
• Rated voltage: Suitable for operation at a rated voltage of up to 500 V (300V for cross-sections below 1mm²) or up to 750 V (when laid in protective conduits).

Applications and installation

The HELUTHERM® 145 cable finds wide application in various industries and construction:

• Wiring of lighting fixtures: Due to its high temperature resistance, it is ideally suited for use in lighting fixtures.
• Thermal devices: A safe choice in heating installations and heat generating devices.
• Electrical machines: It performs well in the wiring of electrical machines of thermal class B.
• Distribution boards: It can be used in electrical distribution boards due to its insulating properties and temperature resistance.
• Surface, on and in-wall installations: A universal cable for various types of electrical installations.
• Rail vehicles: Possible application with a DC working voltage of up to 900V

The minimum bending radius is 4x the outer diameter for stationary installations and 8x the outer diameter for flexible installations – it is worth taking this into account during installation to avoid damage to the cable. The cable is intended for laying in protective conduits or directly in dry and enclosed places.