Raritan PX3TS, User Manual

Page: 116 / 842

Chapter 5: Using the PX3TS
92
Short Circuit Detection
A short circuit in the load results in a power failure on the active inlet.
The PX3TS monitors load current and does NOT perform an automatic
power transfer if power fails because of an overload. Instead, the PX3TS
activates the Overload alarm and turns on the Overload lamp. See
Alarm
Indicator Lamps (on page 89).
The Overload alarm is turned off after voltage is restored and normal
current is detected in the load.
The overload threshold differs according to your model's rating.
Overload threshold = 2 * sqrt(2) * rating
Examples:

PX3TS-1876R, which is rated at 16A:
2 * sqrt(2) * 16 = 45A

PX3TS-1869R, which is rated at 32A:
2 * sqrt(2) * 32 = 91A
Outlets
The total number of outlets varies from model to model.
PX3TS-1000 Series
These models are NOT outlet-switching capable so all outlets are always
in the ON state.
Outlet LEDs are not available.
PX3TS-5000 Series
These models are outlet-switching capable. A small LED adjacent to
each outlet indicates the outlet or PDU state. The PDU is shipped from
the factory with all outlets turned ON. The table below explains how to
interpret different outlet LED states.
LED state Outlet status What it means
Not lit Powered OFF
The outlet is not connected to power, or the control
circuitry's power supply is broken.