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The Testing and Tagging of Three Phase portable equipment is required by the New Zealand Standard 3760. Unlike single phase portable appliances, 3 phase equipment can vary from 20 to 32 Amp and 4 to 5 Pins. The testers and accessories here will be able to cover all your 3 phase testing needs.
IMPORTANT NOTICE: there has been a recall on 3 Phase App/Ext/RCD.