Rockwell Automation Allen-Bradley 160 SSC Series, User Manual

Page: 17 / 88

Installation and Wiring 2-5
Branch Circuit Protective Devices
Fusing
The Bulletin 160 Smart Speed Controller has been UL tested and approved for use
with input fuses. The ratings in the table below are the minimum recommended
values for use with each drive rating. The devices listed in this table are provided
to serve as a guide. Other devices which meet the requirements of UL508C and
UL489 with similar trip characteristics may be used in order to meet local or
national electrical codes.
Bulletin 140 Manual Motor Starters/UL489 Circuit Breakers
When using Bulletin 140 manual motor starters or UL489 rated circuit breakers,
the guidelines listed below must be followed in order to meet the NEC requirements
for branch circuit protection.
• Bulletin 140 manual motor starters can be used in single and group motor
applications.
• In single motor applications, a fuse or UL489 rated circuit breaker is required
ahead of the Bulletin 140 manual motor starter.
• In group motor installations, the Bulletin 140 can be used for protection of an
individual motor within the group and “one set” of fuses or a UL489 rated
circuit breaker serves as the Branch Circuit Protective Device for the entire
“Group Installation”.
• Bulletin 140M manual motor starters can be used in single and group motor
applications without additional short circuit protection. Refer to the technical
support literature for the 140M for more details.
Minimum Recommended Branch Circuit Protective Devices
➊
Table 2.B
➊
The maximum branch circuit protection rating is limited to four times the rated output current of
the drive or 30A, whichever is less.
➋
Fuse class CC, J, BS88, VDE 06366/gG, IEC 269-1/gG, EN60269 part 1 and 2 type gG
Voltage Rating Drive Rating
kW (HP)
Fuse Rating
➋
UL489 Rated
Circuit Breaker
Amps
Bulletin 140/140M
Manual Motor Starter
Amps
Single Phase
230V 0.37 (0.5)
0.55 (0.75)
0.75 (1)
1.5 (2) 6
10
15
30 16
16
16
20 16
16
16
20
Three Phase
230V 0.37 (0.5)
0.55 (0.75)
0.75 (1)
1.5 (2)
2.2 (3)
4.0 (5) 6
6
10
15
20
30 16
16
16
16
20
30 16
16
16
16
20
30
Three Phase
460V 0.37 (0.5)
0.55 (0.75)
0.75 (1)
1.5 (2)
2.2 (3)
4.0 (5) 4
4
5
8
15
20 6
6
6
16
16
20 6
6
6
16
16
20