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MX28B-400 +24V Product Manual
990-9218 15
5. INSTALLATION PROCEDURES
5.1 Preparation
5.1.1 Recommended Tools
•= Standard selection of insulated hand tools.
•= Proper tools for crimping the selected cable lugs.
5.1.2 Recommended Test Equipment
•= Digital Multimeter
5.1.3 Equipment Inspection
Remove equipment from packing material and inspect for shipping damage to verify the safety
and operational suitability for the installation site. [Refer to Section 1.3]
5.1.4 Safety Precautions
***** WARNING *****
The MX28B dc power plant is supplied from a nominal 220V ac, 60 Hz source. Keep the ac
input enclosure cover in place when the system is operational or energized.
***** CAUTION *****
Handling or touching the controller boards located inside this unit without being electro
statically discharged (grounded to the frame) may cause extensive damage to the
electronics. Before touching or handling the controller boards, it is recommended that
an ESD wrist strap be utilized.
***** WARNING *****
Hazardous energy levels are present on bare conductors in the -48V dc distribution
connection area of the plant. Accidental shorting of distribution conductors can cause
arcing and high currents that can cause serious burns or other physical harm.
It is recommended that:
•= Any jewelry, rings or watches be removed while working on this equipment.
•= Handles of all wrenches, screwdrivers, cutters and pliers be insulated.
•= Shafts of screwdrivers be wrapped in electrical tape or otherwise insulated.
5.1.5 Room/Locations
NOTE: The APC DC Network Solutions Inc. Model MX28B dc power plant is to be
installed in a room, vault, or similar enclosure that is accessible only to qualified
persons in accordance with the NEC or the authority having jurisdiction.