Rockwell Automation 284 ArmorStart User Manual - Manual (Page 439)

Group Motor Installations E-7
Table E.1 Extended NFPA 79, Table 7.210.4, Relationship Between
Conductor Size and Maximum Rating or Setting of Short-Circuit
Protective Devices for Power Circuits
➊ For 16 AWG conductors the branch circuit breaker must be marked for use the 16 AWG wire, NFPA
79, 12.6.1.1.
➋ The UL Certificate of Compliance for the ArmorStart Distributed Motor Controllers models 280*-*10*,
281*-*10*, 283*-*10*, 284*-*10*; and ArmorConnect input cable media 280*-M22*-M*, 280S-
PWRM22*-M* cable assembly branch circuit taps, and 280*-M22*-M1 ArmorConnect panel mounting
fittings allows 16 AWG conductors to be used when part of ArmorStart and ArmorConnect components.
➌ The 280*-PWRM22*-M* ArmorConnect cable assembly taps and 280*-22*-M1 panel mounted fittings
with 16 AWG conductors are suitably protected when protected in the branch circuit by a 40A non-
time delay fuse.
➍ The 280*-PWRM22*-M* ArmorConnect Cable Assembly taps and 280*-22*-M1 Panel Mounted Fittings
with 16 AWG conductors are suitably protected when protected in the branch circuit by a 20A time
delay fuse.
The Listed ArmorStart motor controllers with their factory supplied
motor cable carries the marked maximum ratings shown in the
following table.
➊ Class J, CC, and T fuses only.
➋ ArmorConnect power media and tees may only be used with fuses.
Max. Ratings
Conductor Size
(AWG)
Non-Time Delay Fuse or
Inverse Time Circuit
Breaker ➊ (amperes)
Time Delay or Dual Element
Fuse (amperes)
16 ➋ 40 ➌ 20 ➍
14 60 30
12 80 40
10 100 50
8 150 80
6 200 100
4 250 125
Max. Ratings
Voltage 480Y/277 480 600Y/347 600
Sym. Amps RMS 65 kA 65 kA 30 kA 30 kA
Circuit Breaker 100 A 100 A 100 A -
Fuse 100 A 100 A 100 A 60 A ➊
ArmorConnect ➋ 60 A ➊ 60 A ➊ 60 A ➊ 60 A ➊