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fuses

  1. MCC Question

    PLCs, VFDs, Motors and Controls
    Hello to everyone Can the fuses inside an MCC be higher than the disconect? Example I have an MCC bucket with a Disconnect, Fuses, Contactor and O/L. All parts are rated at 30Amps except the fuses which are at 40amps and O/L is turn down to 22amps. This seems wrong to me does anyone have a code...
  2. sizing service for water well

    Services and Service Equipment
    I have a 125hp 277/480 submersible pump i need to build service for.I am confused on sizing fuse size and conductors from service to vfd that will be controlling pump; 156 fla x 175 % = 273 for fuse size? what would the wire size be from service to vfd would it be rated for 300 amp 350 mcm?
  3. HELP! Fuse box issue - bad edison base

    General Electrical Discussion
    I know the best option is to replace the fuse box w/ a breaker box, but I don't have the money to do so right now. Here's the problem... 1) 15 amp Type S fuse will no longer screw into the Edison Base in the fuse box because it has been replaced so many times the threads are stripped. Is it...
  4. Installing fuses in Metal Halide fixtures?

    Lighting Design
    Ok, I had a new request today, and curious to know if any of you guys have any input on this one. Here is the language of the request: This is for a relamp project that is moving from 175W MH lamps to 150W Pulse Start. No ballast change is required, but I have to say I have no idea on the...
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