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Micrologic 2.2-G
Ratings (A)
In at 40°C
(1)
40
100
160
250
Circuit breaker
Compact NSX100
b
b
-
-
Ii
Compact NSX160
b
b
b
-
Compact NSX250
b
b
b
b
L
Long-time protection
Pick-up (A)
tripping between
1.05 and 1.20 Ir
Io
value depending on trip unit rating (In) and setting on dial
In = 40 A
Io =
18 18 20 23 25 28 32 36 40
In = 100 A
Io =
40 45 50 55 63 70 80 90 100
In = 160 A
Io =
63 70 80 90 100 110 125 150 160
In = 250 A (NSX250) Io =
100 110 125 140 150 176 200 225 250
Ir
= Io x ...
¿QH DGMXVWPHQW VHWWLQJV IURP WR IRU HDFK ,R YDOXH
Time delay (s)
accuracy 0 to -20%
tr
non-ad
j
ustable
1.5 x Ir
15
6 x Ir
0.5
7.2 x Ir
0.35
Thermal memory
20 minutes before and after tripping
S
0
6KRUW WLPH SURWHFWLRQ ZLWK ¿[HG WLPH GHOD\
Pick-up (A)
accuracy ±10 %
Isd
= Ir x ...
1.5 2
2.5 3
4
5
6
7
8
9
Time delay (ms)
tsd
non-ad
j
ustable
Non-tripping time
140
Maximum break time
200
I
Non-adjustable instantaneous protection
Pick-up (A)
accuracy ±15 %
Ii non-ad
j
ustable
600
1500
2400
3000
Non-tripping time
Maximum break time
15 ms
50 ms
(1)
If the trip units are used in high-temperature environments, the Micrologic setting must take into account the thermal limitations of the circuit breaker. See the
temperature derating table.
A-49
559E1600.indd
version: 1.0