3M™ 91-AH 23-N is a heatshrink low voltage inline joint kit for crimp connectors, designed for 3-core and 4-core non shielded, non armoured, low voltage polymeric insulated energy cables up to 0.6/1 kV according to HD603 and IEC 60502-1. Shrink ratio is up to 4.5:1, min. shrink temperature is 135°C, operating temperature is -55°C to +130°C. Cable cross section range is 4x25-4x95 mm². RoHS compliant, halogen free. Good electrical insulation, moisture, mechanical and chemical resistance.