3M™ 91-AHA is a heatshrink low voltage inline joint kit for crimp connectors, designed to be used on 4-core shielded and armoured, low voltage polymeric insulated energy cables up to 0.6/1 kV according to HD603 and IEC 60502-1. RoHS compliant and halogen free. Good electrical insulation, moisture, mechanical, chemical and UV resistance.