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Circuit Breaker Types and Interrupting Capacity

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2 Electricians Banter on the Difference between A Load Center Vs. Panel Board #hendythesparky

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What happens here

This step clarifies a major distinction: the type of circuit breakers used. Panel boards are shown to use 'bolted-in breakers,' which are physically secured and 'captive' within the unit, making them more robust. This design allows them to handle a 'higher interrupting capacity,' significantly reducing the likelihood of them 'exploding and blowing out' during severe electrical faults. Conversely, load centers employ 'traditional plug-in breakers' that simply slide into place, offering less secure connections and lower interrupting capacity.

Goal: Recognize the differences in circuit breaker attachment and safety capacity.

Tools and materials

  • Bolted-in Breaker Siemens Type BT — Shown as an example of a secure, high-interrupting capacity circuit breaker used in panel boards
  • Electrical Panel Board — Visual context for bolted-in breakers and higher capacity applications
  • Plug-in Breaker Square D Type HOM — Shown as an example of a traditional, plug-in style circuit breaker used in load centers

What they say

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devices, a backboard, an interior. The main difference between a panel board and a load center, panel board has bolt-in breakers, right? So, they're captive. They're held in. They also can handle a higher interrupting capacity because of that, right? They're less likely to explode and blow out when they're bolted in versus a load center that just has a traditional plug-in breakers. Mhm. The benefit of a load center is you can get these at Home

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