Rockwell Automation DC3E Non-Regenerative DC Drive User Guide 1/4 - 2 HP, 115/230 VAC - Manual (Page 21)

13 Installation
Line fusing
This DC3 drive model has 15-amp line fuses preinstalled
on fuse holders 501 and 502 (FU501 and FU502). When
replacing the line fuses, use fast acting fuses rated for 250
VAC or higher. See Figure 3, page 6, for fuse holder
location, and Table 1 for recommended replacement line
fuse sizes for specific application ratings.
Table 1. Recommended Line Fuse Sizes
90 VDC Motor 180 VDC Motor Max. DC Armature AC Line Fuse
Horsepower Horsepower Current (amps) Size (amps)
1/20 1/10 0.5 3
1/15 1/8 0.8 3
1/8 1/4 1.5 5
1/6 1/3 1.7 5
1/4 1/2 2.6 8
1/3 3/4 3.5 8
1/2 1 5.0 10
3/4 1 1/2 7.6 15
1 2 10 15
Reliance Electric offers a 0.5A pico fuse (part number 050-
–0074) which protects the control board power supply
transformer and logic.
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