Rockwell Automation Publication 750-IN020D-EN-P - May 2017
67
PowerFlex 755 IP00, NEMA/UL Open Type Drive
Fuse and Circuit Breaker
Ratings
The tables on pages
68
…
74
provide drive ratings (including continuous,
1 minute and 3 second) and recommended AC line input fuse and circuit breaker
information. Sizes listed are the recommended sizes based on 40 °C (104 °F) and
the U.S. N.E.C. Other country, state or local codes may require different ratings.
In addition, Frame 8 and larger drives include AC line fuses (with blown fuse
indicators) to provide drive short circuit protection.
Input Device Requirements
Fusing
If fuses are chosen as the desired protection method, see the recommended types
listed below. If available amp ratings do not match the tables provided, the closest
fuse rating that exceeds the drive rating should be chosen.
• IEC – BS88 (British Standard) Parts 1 & 2
(1)
, EN60269-1, Parts 1 & 2, type
gG or equivalent should be used.
• UL – UL Class T, J or L should be used.
Circuit Breakers
The “non-fuse” listings in the following tables include both circuit breakers
(inverse time or instantaneous trip).
If one of these is chosen as the desired
protection method
, the following requirements apply.
• IEC and UL – Both types of devices are acceptable for IEC and UL
installations.
Frames
Enclosure
Catalog Code
Installation Type
UL Certification Required
UL Certification
Not Required
8…10
T
Installed inside of
any cabinet.
All devices listed on pages
68
,
70
,
72
, and
74
are acceptable.
All devices listed on pages
68
through
74
are acceptable.
(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.
