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1.3
Safety precautions
The PDU contains hazardous voltages, and hazardous voltages are present regardless of the mode of
operation. Before making any connection(s) to the PDU, ensure that any/all power sources are de-
energized and locked out.
As lethal voltages are present within the PDU during all modes of operation, maintenance shall only be
performed by authorized service personnel.
ABB neither recommends nor knowingly sells this product for use with life support applications or other
FDA designed critical applications.
All wiring should be performed by qualified electricians and in the accordance with local and national
electrical safety codes. Before placing the unit into service, a thorough inspection and supervised start-up
should be performed by a qualified service technician.
This PDU is designed for operation from a three (3) phase, three (3) wire power source. Refer to the
unit's nameplate for the specific model designation, operating voltage, and input power configuration.
Input over-current protection is to be supplied by the user in accordance with nameplate ratings, in
applications where the PDU has no main breaker.
1.4
Safety considerations
The TruFit™ PDU is designed for commercial applications and should be handled with appropriate care,
following these guidelines:
Keep surroundings clean and free from excess moisture.
Do not operate the PDU system close to gas or electric heat sources.
The system is not intended for outdoor use.
The operating environment should be maintained within the parameters stated in the manual.
Keep the cabinet doors closed and locked to ensure proper cooling airflow and to protect personnel
from dangerous voltages inside the unit.
If service or routine maintenance is required:
Ensure all power is disconnected before performing maintenance.
Ensure the area around the PDU is clean and uncluttered.
Observe all DANGER, CAUTION and WARNING notices affixed to the inside and outside of the
equipment.
Only authorized service personnel should perform maintenance on or service
the PDU system.
To provide sufficient isolation protection when working upstream of the PDU,
open the respective source feeder breakers contained within the PDU.
Prescribing to this maintenance method reduces the risk of electric shock
due to backfeed.
Power Distribution Unit│94-1100-00002874 A0 EN 7
TruFit™
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