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Protection Settings
Long Time Delay (LTD) protection
Adjusting I
(Current)
r
The LTD protection trip range is: 1.05...1.20 x I
The trip threshold tolerance I
for the long-time delay protection is +5% to +20%.
r
The I
trip threshold is adjusted using two I
r
I
– maximum scale adjustment
r1
I
– fine adjustment of the maximum scale in increments of 1%
r2
The I
threshold is firstly set using the I
r
1% can be made from OFF to 0.92 x I
adjustment dials.
WARNING: Setting I
instantaneous protection only.
Rating (I
)
n
1
I
max 16
I
r1
r1
40A
14.72...16
16.56...18
I
max 40
I
r1
r1
100A
36.8...40
41.4...45
I
max 63
I
r1
r1
160A
58...63
64.4...70
I
max 100
I
max 110
r1
r1
250A
92...100
101.2...110
I
max 160
I
max 180
r1
r1
400A
147.2...160
165.6...180
I
max 250
I
max 300
r1
r1
630A
230...250
276...300
I
max scale setting (A)
r1
I
fine adjustment range (A)
r2
TemBreak
PRO
P_BE-UM-001-EN V1.3.0
according to standard AS/NZS IEC 60947.2.
r
dials on the front of the MCCB:
r
dial to set the maximum current range, then, if necessary, from the I
r1
dial. Refer to the
Commissioning – LTD Adjustments (I
r1
to OFF will disable both LTD and STD protection modes; therefore, the MCCB will provide
r2
2
3
4
max 18
I
max 20
I
max 22
r1
r1
18.4...20
20.24...22
max 45
I
max 50
I
max 57
r1
r1
46...50
52.44...57
max 70
I
max 80
I
max 90
r1
r1
73.6...80
82.8...90
I
max 125
I
max 140
r1
r1
115...125
128.8...140
I
max 200
I
max 225
r1
r1
184...200
207...225
I
max 350
I
max 370
r1
r1
322...350
340.4...370
, t
)
section for further information on using the I
r
r
Dial position
5
6
I
max 25
I
max 28
I
r1
r1
r1
23...25
25.76...28
29.44...32
I
max 63
I
max 72
I
max 80
r1
r1
r1
57.96...63
66.24...72
73.6...80
I
max 100
I
max 110
I
max 125
r1
r1
r1
92...100
101.2...110
115...125
I
max 160
I
max 180
I
max 200
r1
r1
r1
147.2...160
165.6...180
184...200
I
max 250
I
max 300
I
max 350
r1
r1
r1
230...250
276...300
322...350
I
max 400
I
max 500
I
max 600
r1
r1
r1
368...400
460...500
552...600
dial further adjustments in fine increments of
r2
7
8
9
max 32
I
max 34
I
max 37
r1
r1
31.28...34
34.04-37
I
max 87
I
max 93
r1
r1
80.04...87
85.56-93
I
max 135
I
max 150
r1
r1
124.2...135
138-150
I
max 225
r1
207...225
I
max 370
r1
340.4...370
I
max 630
r1
579.6...630
and I
r1
r2
10
I
max 40
r1
36.8-40
I
max 100
r1
92-100
I
max 160
r1
147.2-160
I
max 250
r1
230-250
I
max 400
r1
368-400
26
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