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Protection unit MP4-Megabreak®
Installa
tion manual
41
7. Default page
Like shown on the bottom, display have an “Upper part”, of two lines, and a “Lower part” , of four lines.
Four different layouts of the default page depending on breaker status.
1.
BREAKER CLOSED - NORMAL
: (no pre alarm or alarm signal). On upper side are shown maxi-
mum average currents.
Example: maximum value 1000A on 1 phase, average value 700A.
From this position (closed breaker and no alarms) it’s possible to enter the main page by pushing
OK
button.
MAX represents the maximum value among the currents (phase shown on side, I1, I2, I3 or N; this
last one only if Neutral is present); AVG instead shows the average value obtained by:
AVG =
™
li
n
Where “n” is the number of phase detected by the breaker, so:
4 if Neutral is present (four poles or three poles with external neutral)
3 if Neutral is absent (3 poles without external neutral)
Phases I1, I2, and I3 are always considered in the sum; Neutral only if is present.
M a x = 1 0 0 0 A
I 1
A V G = 7 0 0 A
Summary of Contents for Megabreak MP4 Series
Page 2: ...2 Protection unit MP4 Megabreak IT EN ITALIANO 3 ENGLISH 33 ...
Page 32: ...32 ...
Page 50: ...50 To come back to the upper level of menu push C To scroll up push 49 ...
Page 52: ...52 To come back to the upper level of menu push C To scroll up push Overtemp 51 ...
Page 54: ...54 To come back to the upper level of menu push C To scroll up push In Absent 53 55 ...
Page 58: ...58 To come back to the upper level of menu push C To scroll up push 2 7 X ...
Page 62: ...62 ...
Page 63: ...Protection unit MP4 Megabreak Installation manual 63 ...