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MX28B1200/2400 MX28B1200/4800 –48 VDC User’s Manual Page 1
1 Safety First!
It is very important to follow all safety procedures when unpacking, installing and operating any
sort of power equipment.
1.1. Warning Symbols
CAUTION: An indication that special care is required to prevent injury,
equipment damage or misuse
WARNING: An indication of an electrical hazard that may cause serious
personal injury or death, catastrophic equipment damage or site destruction.
1.2. General Precautions:
WARNING: The DC power plant is supplied from a nominal 220VAC, 50/60
Hz source. Keep the AC input enclosure cover in place when the system is
operational or energized
WARNING: Hazardous energy levels are present on bare conductors in the -
48VDC 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:
a. Any jewelry, rings or watches be removed while working on this
equipment.
b. Handles of all wrenches, screwdrivers, cutters and pliers are insulated.
WARNING: Ensure that all of the DC and external AC circuit breakers are in
the OFF position prior to connecting service to the power plant. Confirm that
all voltages have been removed including any battery sources before
proceeding
.
Specific CAUTION and WARNING will be placed in manual where appropriate.