High-voltage flexible rubber cable designed for demanding industrial power applications

This highly flexible single-core rubber cable is engineered for medium-voltage power distribution in demanding industrial environments such as traction systems, switchboards, and submersible pump installations. It uses fine-stranded tinned copper conductors with durable EPR insulation and a rugged CPE rubber sheath, delivering reliable electrical performance, mechanical protection, and long-term durability. Designed to operate at voltages up to 3.3 kV and temperatures up to +110 °C, it ensures safe, efficient, and stable power transmission even in harsh conditions.

Key Features

  • 3.3 kV Medium-Voltage Rating: Supports AC voltages up to 1.9/3.3 kV and DC voltages up to 2.85/4.95 kV, making it suitable for industrial and heavy-duty electrical systems requiring stable high-voltage power delivery.
  • Highly Flexible Class 5 Tinned Copper Conductors: Fine-stranded tinned copper construction provides excellent flexibility, conductivity, and corrosion resistance, ensuring reliable performance in dynamic or vibration-prone installations.
  • Durable EPR Insulation with CPE Rubber Sheath: Premium insulation and outer sheath materials provide superior electrical protection, abrasion resistance, and long service life in harsh industrial environments.
  • Wide Operating Temperature Range: Designed for flexing applications from −25 °C to +110 °C and fixed installations from −35 °C to +110 °C, ensuring dependable operation in extreme environmental conditions.
  • Submersible and Moisture Resistant: Suitable for submersible use up to 300 metres, making it ideal for underwater pumps and wet industrial applications requiring reliable insulation integrity.
  • UV, Oil, and Chemical Resistance: Resistant to UV radiation, oil, and varnish exposure, ensuring long-term durability and protection in outdoor and industrial environments.
  • Flame-Retardant and Abrasion-Resistant Design: Provides enhanced safety and mechanical protection, reducing the risk of damage, fire hazards, and operational failures.
  • Flexible Installation Capability: Minimum bending radius of 5× cable diameter when flexing and 4× when fixed enables easier installation in tight or confined spaces.

Engineered for reliability, flexibility, and durability, this cable ensures safe and efficient power delivery in demanding industrial and high-voltage applications.

Electrical Specifications
Nominal Voltage (AC) 1.9/3.3 kV
Nominal Voltage (DC) 2.85/4.95 kV
Temperature Range (Flexing) -25°C to +110°C
Temperature Range (Fixed) -35°C to +110°C
Construction
Conductor Type Class 5 fine-stranded tinned copper
Insulation Material EPR (Ethylene Propylene Rubber)
Sheath Material CPE rubber compound (5GM3)
Cable Type Single core flexible rubber cable
Mechanical & Environmental
Submersible Rating Up to 300 metres
Minimum Bending Radius (Flexing) 5 × cable diameter
Minimum Bending Radius (Fixed) 4 × cable diameter
Resistance Properties UV resistant, oil resistant, varnish resistant, abrasion resistant
Safety Features Flame retardant
SKU RAL.SDI-3.3KV-CABLES
Brand Ralos

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