New EE
Member
- Location
- California
Could someone please explain to me what a kirk key interlock does on a power distribution unit (PDU)? The PDU has a dual input from two seperate distribution panels along with the kirk key interlock. I'm a bit confused on what this does. The PDU has dual input, isolation transformer, and two panelboards with main breakers on each panelboard. Does it mean that one panelboard can be live at a time or can both panelboards be live at the same time? Please clarify for me. Thanks. Attached is a wiring diagram.