Heat sinking
The enclosed MM300 Series drive contains sufficient heat sinking in its basic configuration.
No additional heat sinking is necessary when installed in accordance with the guidelines
specified in this manual.
Line fusing
WARNING: Most code requires that upstream
branch protection be provided to protect input
power wiring. Failure to observe this precaution
could result in severe bodily injury or loss of life.
This MM300U Series 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 5) for fuse holder location and Table 1
(page 9) for recommended line fuse sizes.
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