1236LE008146B
Alarm management
7.8 System alarms
Error
code
Severity Meaning Recommended action
E019 High Internal error 1: microcontroller
error
For more information, see the
maintenance guide.
E021 Average Trip unit temperature Check that the temperature
inside the electrical
distribution board is not
abnormal.
E022 Average Trip unit key or button faulty For more information, see the
maintenance guide.
E023 Average Digital Input faulty Check if the digital input has a
fault (cut wire, no power, etc.)
E024 Average Broken Neutral Pole Check if a wire in the neutral
distribution is broken.
E025 Average Internal error 2: software error For more information, see the
maintenance guide.
E027 Average Internal error 3: software error
E028 Average Internal error 4: error detecting
the open/closed status
E029 Average Internal error 5: ENCT sensor
error
E032 Average Internal error 6: electronic link
to the MHT actuator error
E033 Average 24VDC external power supply
lost
Verify the 24VDC
external power supply.
E034 Average Rating plug fault Replace the rating plug
E035 Average Internal error 7: circuit breaker
conguration error
For more information, see the
maintenance guide.
E036 Average Internal error 8: Bluetooth error
E040 Average ZSI input activated Appears when the trip unit
receives the ZSI signal from
the downstream circuit
breaker.
E042 Average Internal error 9: circuit breaker/
trip unit compatibility error
For more information, see the
maintenance guide.
E100 to
E200
Average Manufacturing fault Contact your Hager
representative or local Hager
technical support (contact
details on the Hager website
for your country).
For the meanings of the different non-critical system alarms, refer to the table
below:
ATTENTION
For further information about the meaning of the system alarms, please refer to the
Maintenance guides 6LE007897A and 6LE007971A.
N.B.
Note: the sentinel Energy trip units have a temperature sensor that can protect them from
malfunction following overheating of the sensitive internal components. The E021 non-critical
system alarm issues an initial alert level when the internal temperature reaches 75°C.
Reaching a temperature of 85°C will cause the display to switch o but the trip unit will remain
operational until the temperature reaches 90°C which will activate the E012 critical system
alarm and will cause the circuit breaker to trip.
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