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circuit braker

  1. I'm confused

    New Member Introductions
    Hello everyone, this is my first time here so I'm not even sure if I'm posting in the correct place but here goes.... My Geyser has two brakers which both have to be on for the geyser to heat up, but one of those brakers also switches on the oven, the oven has it's own braker which also...
  2. Which CB do I need for these VFDs?

    PLCs, VFDs, Motors and Controls
    (first post on this forum) I am trying to decide between two circuit breakers to use for my VFDs. My VFDs are Rockwell PowerFlex 525 VFDs (Part number: 25A-B8P0N104) and they will control three 2HP motors (the circuit is 240VAC). I only have the circuit breaker to protect the conductors and...
  3. Circuit Meters

    General Electrical Discussion
    I recently found out that my electrical usage is three to five times normal. I am trying to find out why. Is there a relatively inexpensive way to meter each circuit going out of the panel. I don't want to use a plugin appliance meter (you plug the meter into an outlet and the appliance into...
  4. How select proper circuit breaker

    General Electrical Discussion
    I have some motors 90 KW, 37 KW,7.5 KW ,also have lighting load 70 KW. Now how can I select proper ampere capacity circuit breaker for each load .please help and provide reference.thanks.
  5. How do i choose a circuit breaker for different loads?

    NEC Code Forum
    Please help me with this question? I have a four (4) three phase motors 15 Amperes each one, they must be protected each one by a circuit breaker, also i have a three phase transformer 150kVA also protected by a circuit breaker. These circuit breakers are connected to a 480V - 3PH bar inside a...
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