Combination Motor Controller (CMC) provide the four essential elements of motor branch circuit protection and control. Panel builders should understand the benefits and drawbacks of the five most popular CMC types.
short circuit current ratings
ABB Ability(TM), Smart Power
Marcelo E. Valdes
PE, IEEE Fellow Applications Eng. Manager
ABB Electrification Products Industrial Solutions
Short circuit current ratings (SCCR) are a critical specification when designing industrial control panels. Determining the appropriate SCCR actually requires no calculations. Instead, there is a simple, four-step process to follow.
Sales Enablement Manager
ABB Electrification Products Division
When selecting the right low voltage power circuit breaker for an application, it is important to consider both short-circuit current ratings and short-time current ratings. Understanding these performance characteristics will help you choose between the various circuit breaker designs.