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

Product codes
AP9553
Page of 16
8
APC PDU (AP9553 and AP9558): Installation Manual
Operation
Front view
Review the following figures and related descriptions to 
familiarize yourself with the components and the operation of 
your 
PDU
.
Œ
Œ
Œ
Œ
Circuit 
Breaker
The circuit breaker is tripped when 
the button is extended. When it is 
tripped, the 
PDU
 is overloaded and at 
least one piece of equipment needs to 
be unplugged. The circuit breaker is 
rated to trip at the same overload as 
most home and office utility service 
branch protectors (
20
).