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8 Health Monitor
PXR TRIP UNITS FOR POWER DEFENSE MOLDED CASE CIRCUIT BREAKERS MN012007EN March 2019 www.eaton.com
8 Health Monitor
8.1 Health Monitor description and function
The PXR 20, 20D, and 25 trip units include an innovative algorithm to determine health Status. The parameters that are moni-
tored by this algorithm include short-circuits, overloads, operations, temperature, and run-time. These parameters can provide
a host of individual insights while the combination of all of them provide an overall picture of the condition of the breaker that
can be used for predictive maintenance and furthermore system reliability. This Health monitor is a tool and is not a replace-
ment for establish breaker maintenance or replacement practices.
The Heath of the breaker can be accessed through Power Xpert Protection Manager (PXPM). A programable relay can also
be configured to close at a user defined level. Depending on options, reading the % health over communications, as well as
from the LCD screen on the PXR 20D and 25 is also possible.
When the summary of life is indicating 25% or less, the breaker should be inspected for possible replacement.
8.2 Health Monitor values
Please see available counters and data in 11.3.2 Modbus Register Map Real-time data object registers
Summary
Breaker Health
Diagnostics
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