Guide for Guide for Reducing Motor Control Center Hazards | March 7


Guide for Motor Control Centers Rated up to and including 600 V AC or 1000 V DC with Recommendations Intended to Help Reduce Electrical Hazards

This guide applies to single- and three-phase 50 Hz and 60 Hz Motor Control Centers (MCCs) rated not more than 600 V ac or 1000 V dc. The recommendations within this guide augment the existing requirements of applicable MCC standards (NEMA ICS 18 and UL 845/ NMX-J-ANCE/CSA C22.2 No. 254, collectively referred to as “base MCC standards”). In addition, this guide provides recommendations for electrical system design to help improve safety of the motor control system. The recommendations in this guide should be used in conjunction with safety requirements and procedures as stipulated by appropriate workplace safety standards, site practices and procedures, and manufacturers’ instructions.

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