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55
Installa
tion manual
Protection unit MP6-Megabreak®
2. Signalling of protection unit state
LED 1
LED 2
T
10.25
07/10/2009
0
50
100
120
In 1800A 1200A 1500A 1500A
The state of the protection unit is notified through LED 1 and 2, according to the next table:
signalling:
an alarm is more important than a prealarm. The overload is more important than over
temperature.
Protection
Led 1 note
Led 2 note
Inactive
Switched off
Switched off
Active (I≥100A or supplied)
Green Fix
Switched off
Active: (overload
pre alarm (I>0,9Ir)
Green Fix
Red
Fix
Active: (overload
alarm I>1,05Ir)
Green
Fix
Red
Flashing
Active: over temperature
alarm (T>75°C) *
Green
Flashing
Red
Flashing
*Automatic trip if T ≥ 95°C