Installation and Wiring 2-33
Branch Circuit Protection Requirements for ArmorConnect
Three-Phase Power Media
When using ArmorConnect three-phase power media, fuses can be
used for the motor branch circuit protective device, for the group
motor installations. The following fuse types are recommended: Class
CC, T, or J type fuses. A 100 A circuit breaker (Allen-Bradley140
H-Frame) can be used for the motor branch protective device, for the
group motor installations when using only the following
ArmorConnect Power Media components: 280-M35M-M1,
280-M35F-M1, 280-T35, and 280-PWRM35*-M*.
Group Motor Installations for USA
and Canada Markets
The ArmorStart Distributed Motor Controllers are listed for use with
each other in group installations per NFPA 79, Electrical Standard for
Industrial Machinery. When applied according to the group motor
installation requirements, two or more motors, of any rating or
controller type, are permitted on a single branch circuit. Group Motor
Installation has been successfully used for many years in the USA and
Canada.
Note: For additional information regarding group motor
installations with the ArmorStart Distributed Motor
Controller, see Appendix D.
Wiring and Workmanship
Guidelines
In addition to conduit and seal-tite raceway, it is acceptable to utilize
cable that is dual rated Tray Cable, Type TC-ER and Cord, STOOW,
for power and control wiring on ArmorStart installations. In the USA
and Canada installations, the following guidance is outlined by the
NEC and NFPA 79.
Maximum Ratings
Voltage (V) 480Y/277
Sym. Amps RMS 65 kA
Fuse 100 A
Circuit Breaker 100 A
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