Rockwell Automation MD65 User Manual Version 2.0 - Manual (Page 30)

5-6 MD65 AC Drive User Manual
5.5 Fuses and Circuit Breakers
The MD65 drive does not provide branch short circuit protection.
This product should be installed with either input fuses or an input
circuit breaker. National and local industrial safety regulations and/
or electrical codes may determine additional requirements for these
installations.
Fuses
The MD65 drive has been UL tested and approved for use with
input fuses. The ratings in table 5.4 are the recommended values for
use with each drive rating. The devices listed in this table are
provided to serve as a guide. Other devices that meet the
requirements of UL508C and UL489 with similar trip characteristics
may be used in order to meet local or national electrical codes.
If fuses are chosen as the desired protection method, refer to
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 .
• UL – UL Class CC, T or J must be used. 2
Circuit Breakers
The circuit breaker ratings in table 5.4 are for the recommended
rated devices that supply drive protection.
!
ATTENTION: To guard against personal injury and/
or equipment damage caused by improper fusing or
circuit breaker selection, use only the recommended
line fuses/circuit breakers specified in table 5.4.
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.
2 Typical designations include:
Type CC - KTK-R, FNQ-R
Type J - JKS, LPJ
Type T - JJS, JJN