168 Rockwell Automation Publication 750-IN001O-EN-P - October 2014
Chapter 4 Power Wiring
Fusing
The recommended fuse types are listed below. If available current ratings do not
match those listed in the tables provided, choose the next higher fuse rating.
• IEC – BS88 (British Standard) Parts 1 & 2, EN60269-1, Parts 1 & 2
(1)
,
type gG or equivalent should be used.
• UL – UL Class CC, T, RK1, J, or L should be used.
Circuit Breakers
The “non-fuse” listings in the following tables include inverse time circuit
breakers, instantaneous trip circuit breakers (motor circuit protectors) and 140M
self-protected combination motor controllers. If one of these is chosen as the
desired protection method, the following requirements apply:
• IEC – Both types of circuit breakers and 140M self-protected
combination motor controllers are acceptable for IEC installations.
• UL – Only inverse time circuit breakers and the specified 140M self-
protected combination motor controllers are acceptable for UL
installations.
• Drives without a 140M recommendation have not been tested in
combination with the drive.
140G circuit breakers, used in frame 8 and larger drives, are set by the factory for
the duty rating of the drive. The default switch settings for each drive rating are
listed in the PowerFlex 750-Series AC Drives Frames 8 and Larger Hardware
Service Manual, Appendix C, publication 750-TG001
.
(1) Typical designations include, but may not be limited to the following; Parts 1 & 2: AC, AD, BC, BD, CD, DD, ED, EFS, EF, FF, FG, GF, GG,
GH.
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