Artesyn Centellis 2000 Shelf - DC Installation and Use (June 2014) - Manual (Page 27)

Safety Notes
Centellis 2000 Shelf - DC Installation and Use (6806800G45F) 27
Short Circuits or Personal Injury
Ensure that the power feeds you plan to remove or attach are powered off and cannot be
switched on while you are working.
Ensure that all power input lines are not energized. Be careful with the used tools in order to
prevent a short circuit.
Product Damage
Improper cabling damages your product.
Take extreme care not to connect the power cable in reverse polarity.
PEMs
Personal Injury
Hot PEMs may cause injury.
Allow the PEM to cool before servicing.
PEM Damage
Applying reversal power causes damage to the electrolytic capacitors of the filter. Therefore,
only switch on the breakers if no red light is visible.
System Damage
Applying feed power to the PEM with the PEM breaker in the ON position damages your system
and/or system components.
The PEM breaker must be in the OFF position when you turn on the feed power.
System Damage
Inserting or extracting the PEM with the PEM breaker in the ON position may damage your
system.
If power is connected to the shelf, make sure the PEM breaker is in the OFF position before you
insert or extract a PEM.