The Instek GPW-011 6RV5 UL Power Cord is an accessory for use with the ASR-6000 High Performance AC/DC Power Source. The Instek ASR-6000 is a programmable AC/DC power source that supports AC single-phase and three-phase input. The three-phase input supports delta (Delta) and star (Y) wiring methods. The input terminal, which is located in the rear panel of unit, can be connected through 3 methods: Single Phase, Delta and Y Connection. Depending on varied input connections, use the corresponding cooper plates and power cords for connection. The GPW-011 power cord is for Y-connection input only.