Circuit Breaker Catalog Numbers: Choose The Right Breaker For Your System

Circuit Breaker Catalog Numbers: Choose The Right Breaker For Your System, updated 9/25/24, 6:01 AM

If you need a circuit breaker for your electrical system but are unsure exactly what you should be looking for, you need to read Electrical Power and Control's new guide to understanding circuit breaker catalog numbers. Go to https://electricalpowerandcontrol.com/circuit-breaker-catalog-numbers-explained to find out more.

Electrical Power and Control City: Talladega Address: 1639 Springhill Rd. Website: https://electricalpowerandcontrol.com/

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Learn How To Read Circuit Breaker Catalog
Numbers
Electrical Power and Control has published a new
guide to help you find and understand catalog
numbers on circuit breakers.
Finding the catalog number on a circuit
breaker is, in fact, fairly simple. On most
models, it is directly to the left of the
operator switch, just below the amperage
rating.
The first character in a catalog number
indicates the frame type, which determines
how the circuit breaker will fit into your
application.
The second and third characters represent
the interrupting capacity and lug
configuration of the breaker. In most cases,
these first three characters are all letters.
The fourth and fifth characters, which are
always digits, indicate the number of poles
and the voltage class of the breaker.
The last three digits specify the
frame’s amperage rating.
Understanding these aspects
ensures safety and efficiency in
your electrical system.

https://electricalpowerandcontrol.com/circuit-breaker-catalog-numbers-explained/

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numbers-explained/
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