hager h3+ - Meaning of Leds and Alarm Notifications

18 6LE005550A
Description of the h3+ communication system
2.1 h3+ electronic trip units
2.1.5
Meaning of LEDs and alarm
notifications
LED indicators on the front face and pop-ups on the embedded display indicate
changes in the operating status and alarm status of the LSnI, LSI, LSIG and Energy
circuit breakers.
LSnI
LSI
LSIG
Energy
OAC output
alarm
-
Notification
OAC output
contact activated
Trip alarm
-
Notification
Indicates the type of trip and its
cause:
- LTD: Long time delay
- STD: Short time delay
- INST: Instantaneous
- GROUND: Ground fault
protection
- TEST: Test mode using MIP
Trip unit
temperature
alarm
-
Notification
Permanent red LED or notifica-
tion on Energy: Internal trip unit
temperature > 105 °C
Overload alarm
- flashing red:
I ≥ 105% Ir
- permanent red:
I ≥ 112% Ir
PTA overload
pre-alarm
LED 90% Ir or PTA
- flashing orange: Thresh-
old 90% Ir or PTA threshold
reached
- permanent orange:
PTA contact activated
Trip unit status
- permanent green:
The trip unit is operational
- flashing orange:
Internal trip unit fault. MCCB
is defective and can no longer
ensure the protection of the
electrical installation