Rockwell Automation Publication 22C-UM001J-EN-E - January 2017 21
Installation/Wiring Chapter 1
Fuses and Circuit Breakers
The PowerFlex 400 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.
Fusing
The ratings in the table that follows are the recommended values for use with
each drive rating. The devices listed in this table are provided to serve as a
guide.
Bulletin 140M (Self-Protected Combination Controller)/UL489
Circuit Breakers
When using Bulletin 140M or UL489 rated circuit breakers, the guidelines
listed below must be followed in order to meet the NEC requirements for
branch circuit protection.
• Bulletin 140M can be used in single and group motor applications.
• Bulletin 140M can be used up stream from the drive without the need
for fuses.
Table 2 - Recommended Branch Circuit Protective Devices
Voltage
Rating
Drive Rating
kW (HP)
Fuse Rating
(1)
Amps
140M Motor
Protectors
(2)(3)
Catalog No.
Recommended
MCS Contactors
Catalog No.
Min. Enclosure
Volume
(4)
Inches
3
200-240V AC
– 3-Phase
2.2 (3.0) 20 140M-F8E-C16 100-C23 5098
3.7 (5.0) 30 140M-F8E-C25 100-C37 5098
5.5 (7.5) 35 140M-F8E-C32 100-C37 5098
7.5 (10) 45 140M-F8E-C45 100-C45 5098
11 (15) 70 — 100-C60 —
15 (20) 90 — 100-C85 —
18.5 (25) 100 — 100-D95 —
22 (30) 125 — 100-D110 —
30 (40) 175 — 100-D180 —
37 (50) 200 — 100-D180 —
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