Rockwell Automation DC3E Non-Regenerative DC Drive User Guide 1/4 - 2 HP, 115/230 VAC User Manual
Page 20

12
Installation
ATTENTION:
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.
ƽ
Observe the following guidelines when installing an
isolation transformer:
·
A power disconnecting device must be installed between
the power line and primary of the transformer.
·
If the power disconnecting device is a circuit breaker, the
circuit breaker trip rating must be coordinated with the
in-rush current (10-12 times full load current) of the
transformer.
Heat sinking
This DC3 drive model contains sufficient heat sinking in
its original configuration. No additional heat sinking is
necessary when installed in accordance with the guidelines
specified in this instruction manual. The chassis plate acts
as the thermal heatsink.
Fusing
Install the required, user-supplied branch circuit protection
fuses according to the applicable local, national, and
international codes (e.g., NEC/CEQ).
250-0287-rev2.qxd
3/12/01
10:27 AM
Page 12
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