APC Rack PDU, Basic, 1U, 16A, 208&230V AP9553 User Manual

Please read the following information before installing or 
operating your 

APC

 Power Distribution Unit (

PDU

):

• This 

PDU

 is intended for indoor use only. 

• Do not install this 

PDU

 where excessive moisture or heat 

is present.

• Never install any wiring, equipment, or 

PDU

s during a 

lightning storm.

• Plug this 

PDU

 into a three-wire, grounded power outlet 

only. The power outlet must be connected to appropriate 
branch circuit/mains protection (fuse or circuit breaker). 
Connection to any other type of power outlet may result 
in a shock hazard.

• Use only the supplied brackets for mounting.
• Do not use extension cords or adapters with this 

PDU

.

• Do not work alone under hazardous conditions.
• Check that the power cord, plug, and socket are in good 

condition.

• To reduce the risk of electric shock when grounding 

cannot be verified, disconnect the 

PDU

 from the power 

outlet before installing or connecting equipment. 
Reconnect to the power outlet only after making all 
connections.

• Equipment must have a protective earth connector which 

carries the leakage current from the load devices 
(computer equipment). Do not exceed a total leakage 
current of 

3.5

 mA.