176 Rockwell Automation Publication 750-IN001P-EN-P - April 2017
Chapter 4 Power Wiring
Fusing
The recommended fuse types are listed in this section. If available current
ratings do not match the fuse type listed in the tables, choose the next higher
fuse rating.
• IEC – BS88 (British Standard) Parts 1 & 2, EN 60269-1, 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 options 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, which are 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 are 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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