Stairville SiliconCable 3x1,5 mm² black, silicone cable 3x1,5 mm ² notching black piece, Construction: Conductor: Fine strands of tinned copper wires, insulation: tear strength silicone compound, outer sheath: black tear strength silicone mixture, similar to RAL 9005, Electrical characteristics at 20 °: Rated voltage: 300 / 500V Test voltage: core / core 2000 V, temperature range: 25°C to +180°C (adequate ventilation provided) short-term: +200°C.