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559E2100.indd
version: 1.0
Installation
recommendations
Temperature derating
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When thermal-magnetic trip units are used
at ambient temperatures other than 40 °C,
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Settings of Compact NSX100 to 250 equipped with TM-D and
TM-G trip units, as a function of the temperature
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Rat.
(A)
Temperature (°C)
10 15 20 25 30 35 40 45 50 55 60 65 70
16
18.4 18.7 18 18 17 16.6 16 15.6 15.2 14.8 14.5 14 13.8
25
28.8 28 27.5 27 26.3 25.6 25 24.5 24 23.5 23 22 21
32
36.8 36 35.2 34.4 33.6 32.8 32 31.3 30.5 30 29.5 29 28.5
40
46 45 44 43 42 41 40 39 38 37 36 35 34
50
57.5 56 55 54 52.5 51 50 49 48 47 46 45 44
63
72 71 69 68 66 65 63 61.5 60 58 57 55 54
80
92 90 88 86 84 82 80 78 76 74 72 70 68
100
115 113 110 108 105 103 100 97.5 95 92.5 90 87.5 85
125
144 141 138 134 131 128 125 122 119 116 113 109 106
160
184 180 176 172 168 164 160 156 152 148 144 140 136
200
230 225 220 215 210 205 200 195 190 185 180 175 170
250
288 281 277 269 263 256 250 244 238 231 225 219 213
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Type of
device
Circuit breaker TM-D trip-
unit rating
Vigi or
insulation
monitoring
module
Ammeter or
current
transformer
module
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16; WR
16 to 100
1
1
16; WR
125
16; WR
160
16;
200 to 250
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ZLWKGUDZDEOH
16; WR
16 to 100
16; WR
125
16; WR
160
0.84
16;
250
DB115053
(
A
)
110
100
90
80
10
2
0 30 40 50
6
0
7
0
(°C)
Temperature derating curve for Compact NSX100.
DB115706
10 000
5 000
2
000
1 000
500
2
00
100
50
2
0
10
5
2
1
.5
.
2
.1
.05
.0
2
.01
.005
.00
2
.001
.5 .
7
1
2
3 4 5
7
10
2
0 30 50
7
0100
2
00300
I / Ir
t(s)
N
SX
80/100
Re
f
lex trippin
g
:
t < 10
m
s
Example 1. Fault I = 500 A
I/Ir
4.5
5
5.5
T°C
&
&
&
t min.
8 s
6 s
5 s
t max.
80 s
60 s
50 s
Thermal-protection curve with minimum and maximum
values.
%