Single phase powerCON® with 3 protective earth conductors. 32 Amp / NAC3-2 Series - AC Installation Coupler. (5 Pole 2P + 3 PE) The AC installation coupler was conceived to serve the needs of distribution systems for professional IT equipment and desk power supplies for the office environment. The system is designed according to the British Standard BS 7671 section 607 only and is therefore limited to corresponding applications. Operation is only guaranteed for related applications and has the ASTA marks licence number: 845. Note: The PowerCon® is a connector without breaking capacity, i.e. the PowerCon® should not be connected or disconnected under load or live.