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IndustryArena Forum > CNC Electronics > CNC Machine Related Electronics > Selecting Circuit Breakers for CNC Control Box, VFD, and DC Power Supply

Thread: Selecting Circuit Breakers for CNC Control Box, VFD, and DC Power Supply

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  1. 01-25-2016, 09:11 PM #1
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    Selecting Circuit Breakers for CNC Control Box, VFD, and DC Power Supply

    I'm just starting to plan my control panel for a BOSS3 conversion.

    I'm planning to bring 220V into the cabinet to a main 30A circuit breaker, then to a 2-pole 30A switch that supplies a Hitachi WJ200 VFD and 72V, 20A DC power supply.

    I think the VFD needs a 15A breaker and the PS a 10A breaker.

    Would these be the correct values and any suggestion on which breakers to use? I want to mount them to a steel back plate.

    Thanks!

    Bah! I meant to post this in http://www.cnczone.com/forums/genera...d-electronics/
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