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Optima 520 Series
3 Operation
Powered
Breaker
Outlet Control Bus
Enable
Disable
Return
Optima
Main Breaker
Main Power
On
Switched Outlets
Controls
OFF
ON
PRESS
RESET
Local/On
Off
Remote
VOLTS
AMPS
WATTS
PF
SEL
Rear Panel • Left Side
E
D
R
3.1 Startup
Switch the breaker on the PDU control panel to the off position. If the unit is so equipped, switch the
Switched Outlets
mode switch to the up position labeled
Local/On
. (This forces the PDU into local mode, ignoring any existing remote
panel for now.)
Insert the PDU’s inlet connector into the facility mains power source. If there is a facility power disconnect, switch that to
the On position. At this point, the PDU is energized, though the indicator lamp will be off.
Switch the PDU’s
Main Breaker
to the On position, and the indicator will be lit. All outlets are now powered.
If the PDU has the
Switched Outlets
toggle switch, and if there is not an EPO panel connected to the PDU, leave the
switch in the up
Local/On
position. If there is remote EPO panel connected to the PDU, such as Marway’s Commander
UCP 5000, flip the switch to the down
Remote
position. This system is discussed in detail farther down.
3.2 Breaker Controls
3.2.1 Main Breaker
The
Main Breaker
enables/disables power to all PDU outlets. When
Main Breaker
is switched on, the
Main Power
indicator labeled will be lit. If the PDU is equipped with the
Switched Outlets
mode switch, the
Off
position will
disconnect power from the outlets even if the main breaker is on.
3.2.2 Branches
All models use a 2-pole main breaker. However, that breaker is used a couple of different ways across the product line.
The following descriptions should help to explain the ratings table above.
12/15 A Rated Units (Group 1)
All models with a 12/15 A inlet rating have both line and neutral connected to the breaker. All outlets are on a single
branch. Therefore, the total continuous load for the whole PDU is 12 Amps. With 5-15R outlets, any one outlet can carry
a continuous load up to 12 Amps (with no draw on other outlets), or a combination of outlets can draw a total of up to 12
Amps for the whole PDU.
16/20 A Rated Units (Groups 2, 3, 4, 5)
All models with a 16/20 A inlet rating have both line and neutral connected to the breaker. All outlets are on a single
branch. Therefore, the total continuous load for the whole PDU is 16 Amps.
