Rockwell Automation Publication 750-IN001P-EN-P - April 2017 175
Power Wiring Chapter 4
Fuse and Circuit Breaker
Ratings
The tables on the following pages provide recommended AC line input fuse
and circuit breaker information. See Fusing
on page 176 and Circuit Breakers
on page 176 for UL and IEC requirements. Sizes are recommended based on
40 °C (104 °F) and the U.S. NEC. Other country, state, or local codes can
require different ratings. DC link fuse recommendations for DC input drives
are also provided. In addition, Frame 8 and larger drives include AC line fuses
(with blown fuse indicators) to provide drive short circuit protection.
Input Device Requirements
Frames Enclosure
Catalog Code
Enclosure Type Installation Type UL Certification Required UL Certification
Not Required
1 R IP20
NEMA/UL Open Type
Installed in a non-ventilated cabinet. All devices that are listed on pages 177
and 180
are acceptable.
All devices that are listed
on pages 177…189 are
acceptable.
Installed outside of cabinet by using NEMA
Type 1 kit or in a ventilated cabinet.
Only non-time delay fuses that are listed on
pages 177
and 180, excluding maximum value,
are acceptable.
2…5 N IP20
NEMA/UL Open Type
Installed in a non-ventilated cabinet. Heat
sink is inside or outside of cabinet.
All devices that are listed on pages 177
, 180,
185, and 189 are acceptable.
FFlange
N IP20
NEMA/UL Open Type
Installed outside of cabinet by using NEMA
Type 1 kit or in a ventilated cabinet.
400V AC/540V DC or 480V AC/650V DC drives:
Only non-time delay fuses that are listed on
pages 177
and 180, excluding maximum value,
are acceptable.
600V AC/810V DC drives:
Only non-time delay fuses that are listed on
page 185
are acceptable, with maximum value
of 40 A (Frame 3), 60 A (Frame 4) and 100 A
(Frame 5).
FFlange
G IP54
NEMA/UL Type 12
Installed inside or outside of any cabinet. All devices that are listed on pages 177
, 180,
185, and 189 are acceptable.
6 and 7 N IP00
NEMA/UL Open Type
Installed in any cabinet.
Heat sink is inside or outside of cabinet.
400V AC/540V DC or 480V AC/650V DC drives:
All devices that are listed on pages 177
, 180,
185, and 189 are acceptable.
600V AC/810V DC or 690V AC/932V DC drives:
Only time delay and non-time delay fuses that
are listed on pages 185
and 189 are acceptable.
Installed outside of cabinet by using NEMA
Type 1 kit.
G IP54
NEMA/UL Type 12
Installed inside or outside of any cabinet. All devices that are listed on pages 177
, 180,
185, and 189 are acceptable.
8…10 B, L, P, W IP20
NEMA/UL Type 1
Installed inside of any cabinet. All devices that are listed on pages 179
, 183,
187
and 189 are acceptable.
J, K, Y IP54
NEMA 12
Installed inside of any cabinet. All devices that are listed on pages 179
, 183,
187 and 189 are acceptable.
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