Rockwell Automation 2090 Ultra3000 Installation Manual - Manual (Page 144)

Publication 2098-IN003E-EN-P — April 2004
A-6 Specifications and Dimensions
Circuit Breaker Specifications
While circuit breakers offer some convenience, there are limitations
for their use. Circuit breakers do not handle high current inrush as
well as fuses. The Ultra3000 needs to be protected by a device having
a short circuit interrupt current rating of the service capacity provided
or a maximum of 100,000A.
The wiring interconnection in Figure A.1 provide examples of the
needed protection and follows UL and NEC codes. Full compliance is
dependent on final wiring design and installation.
Figure A.1
Circuit Protection under NEC 1999 110-10 (preferred fully rated devices)
The table below lists circuit breaker examples recommended for use
with the Ultra3000 (460V) drives.
Required Protection
under 110-10 of
NEC 1999
Preferred Fully
Rated Breakers
Distribution
Blocks
Fully Rated
Fused
Disconnect
Fully Rated
Breaker
Drive Drive Drive
Fully Rated
Fused
Disconnect
Fully Rated
Breaker
Breakers Selected
for Device Protection
Fully Rated Short Circuit
Interrupt Capability
Required Protection
under 110-10 of
NEC 1999
Preferred Fully
Rated Breakers
Fully Rated
Fused
Disconnect
Fully Rated
Breaker
Breakers Selected
for Device Protection
Fully Rated Short Circuit
Interrupt Capability
Catalog Number
Input
Voltage
Circuit Breakers
2098-DSD-HV030x-xx
460V
140M-F8E-C16
2098-DSD-HV050x-xx 140M-F8E-C20
2098-DSD-HV100x-xx 140M-F8E-C32
2098-DSD-HV150x-xx 140M-F8E-C45
2098-DSD-HV220x-xx N/A
ATTENTION
!
Bulletin 140M circuit breakers should not be used on
the output of an ac drive as an isolating disconnect
switch or motor overload device. These devices are
designed to operate on sine wave voltage and the
drive’s PWM waveform does not allow it to operate
properly. As a result, damage to the device will
occur.