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Differentiate Breaker Types: Bolt-on vs. Plug-in

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0:58
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Understanding “3 Phase”, and differences between commercial vs. residential electric #electrician

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What happens here

The electrician points out the circuit breakers within the panel. He explains that these particular breakers are rated for only 250 volts, which is characteristic of the 120-208V system. He further differentiates them from residential breakers by noting that these are 'bolt-on' breakers, meaning they are physically bolted to the bus bar, as opposed to the 'plug-in' style found in residential load centers.

Goal: Understand the difference between commercial and residential circuit breakers

Tools and materials

  • Siemens BQD Breakers Siemens — Example of commercial bolt-on circuit breakers

What they say

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system okay okay there's a couple reason I can determine that one when I see these type of Breakers I know these are rated for only 250 volts this is a seens bqd these are not plugged in yeah like residential it's plugin that's called a load Center okay this is a panel board oh okay panel boards are not plugin they're bolt-on got it right the color

Auto-generated from the video audio.