More info
Description / Abstract:
This guide applies to single- and three-phase 50 Hz and 60 Hz
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.