Rockwell Automation: Short-Circuit Current Ratings

April 2, 2020

What is short-circuit current rating (SCCR)? The maximum available short-circuit current an electrical component can sustain without the occurrence of excessive damage when protected with an overcurrent protective device.

Determining the SCCR of a complete industrial control panel or control switchgear can be challenging, especially if proper considerations are not made during the initial stages of the component selection process.

The Rockwell Automation Global SCCR Selection Tool provides coordinated high fault short-circuit solutions for fused-disconnects, circuit breakers, motor starters, soft starters and component drives. The one-line “Bills-of-Material” provides coordinated high fault SCCR ratings for all power devices used in the circuit, saving customers time and effort to find and determine these ratings.

Global SCCR Selection Tool

The online global SCCR selection tool from Rockwell Automation is optimized for both computer and mobile device use.

Global SCCR Selection Tool

All combinations reported in the SCCR tool have been fully tested and supported by a signed ‘Test Summary Letter’.

Global SCCR Selection Tool

Rockwell Automation provides high fault tested UL/CSA listed combinations for branch and feeder circuits. In many applications, our tested combination high fault ratings values will meet or exceed the perspective available fault current for the installation.

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https://literature.rockwellautomation.com/idc/groups/literature/documents/pp/sccr-pp006_-en-p.pdf

www.rockwellautomation.com 

 

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