Series Ratings

There are many compliance requirements and application considerations associated with series combination ratings.  This page provides resources for evaluating the application of series rated combinations and provides recognized Fuse/Circuit Breaker combinations available in listed panelboards or loadcenters.  Along with technical documentation there are tools for inspectors and plan reviewers.

Series Rating Technical Information

Application document detailing how to properly apply series rated combinations.

Manufacturer Series Rating Charts

Includes tested and recognized Fuse/Circuit Breaker series rated combinations by listed switchboard/panelboard type and manufacturer.

IAEI Series Rating Article

Series combination ratings are sometimes utilized to reduce costs on new projects. Here you will find an article covering series rating from IAEI magazine.

Series Rating Checklist

This simple checklist can be utilized to evaluate proper application of series rated systems.  Inspectors may also reference this document when working with series rated combinations.