![Rockwell Automation Allen-Bradley PowerFlex 700AFE Hardware Service Manual Download Page 94](http://html.mh-extra.com/html/rockwell-automation/allen-bradley-powerflex-700afe/allen-bradley-powerflex-700afe_hardware-service-manual_1475495094.webp)
94
Rockwell Automation Publication 20Y-TG002C-EN-P - April 2017
Chapter 8
DC Fuses Component Section
Fuse Replacement Guidelines
DC bus fuses are required for short circuit protection.
the recommended DC bus fuses.
Table 7 - 400/480 Volt DC Fusing
Table 8 - 600/690 Volt DC Fusing
To replace the fuses, follow these steps.
1. Remove power from the AFE.
Remove Power from the AFE on page 37
.
2. Open the power structure enclosure door.
3. If present, remove the protective barriers.
Remove AFE Protective Barriers on page 44
.
4. Remove and discard the blown fuse.
5. Insert the fuse body between the bus bars.
6. Turn the threaded rod into the fuse body.
7. Place the Belleville (domed) washer and hexagonal nut on the threaded
rod and hand tighten.
8. Hold the threaded rod with the hex key while tightening the nut to the
specified torque.
Frame
Size
AFE Enclosure Style Fuse
Amps
Bussman Type
Ferraz Shawmut Type
13
IP20 2500 MCC
1100
170M6499
—
IP21 Rittal
1100
—
PC73UD95V11CTF
1250
170M6566
—
Frame
Size
AFE Enclosure Style Fuse
Amps
Bussman Type
Ferraz Shawmut Type
13
IP20 2500 MCC
630
170M6454
—
IP21 Rittal
630
—
PC73UD13C630TF
700
170M6305
—
Stud Type
Stud Tightening
Torque, Max
Nut Tightening
Torque, Max
M8 x 30
M8 x 35
10 N•m
(88.5 lb•in)
13.5 N•m
(132.8 lb•in)
M10 x 30
M10 x 50
15 N•m
(132.8 lb•in)
26 N•m
(230.1 lb•in)
M12 x 35
M12 x 50
15 N•m
(132.8 lb•in)
46 N•m
(407.1 lb•in)
M12 x 40
15 N•m
(132.8 lb•in)
46 N•m
(407.1 lb•in)