The 415V 32A 4-Pin Extension Lead Adaptor works in conjunction with a 415V 32A 4-Pin appliance adaptor to carry out testing on extension leads found in three-phase systems in industrial systems. It has a 30cm cable to help minimise resistance and converts a 415V 32A 4-Pin plug to a 230V IEC socket. The adaptor is compatible with any PAT tester and can perform earth bond continuity tests and insulation resistance tests although it is not suitable for load/leakage and touch current testing and should never be plugged into the mains.