Installation manual

Specifications A-13
Drive Fuse & Circuit Breaker
Ratings
The tables on the following pages provide recommended AC line input fuse
and circuit breaker information. Both types of short circuit protection are
acceptable for UL and IEC requirements. Sizes listed are the recommended
sizes based on 40 degree C and the U.S. N.E.C.
Other country, state or local
codes may require different ratings. Tables with DC Link fuse
recommendations are also provided.
Fusing
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)
, 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) and motor circuit protectors for AC
Input drives. 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.
(1)
Typical designations include, but may not be limited to the following; Ora 1 & 2:AC, AD, BC, BD, CD, DD, ED,
EFS, EF, FF, FG, GF, GG, GH