Catalogue number:
AN
□□□□□□
AS
Air Circuit Breaker 1600-5000 70-85kA
AS
□□□□□□
1 LCD: indication of measurement
and information
2 LED: indication of trip information
and overload state
3 Key: Move to menu or reset
4 Iu, Ir: Long-time current setting, tr:
Long-time tripping delay setting
5 Isd: Short-time current setting, tsd:
Short-time tripping delay setting
6 Ii: Instantaneous current setting
7 Ig: Ground fault current setting, tg:
Ground fault tripping delay setting
8 Test terminal: OCR test terminal
(Connected with OCR tester)
N.A.W. Controls Pty. Ltd.
Telephone: (03) 9464 6555
www.nawcontrols.com.au
LS ACB AS & AN range
June 2020
Long time
Current setting (A)
Iu = In×
0.5
0.6
0.7
0.8
0.9
1
Ir = Iu×
0.8
0.83
0.85
0.88
0.9
0.93 0.95
0.98
1
Time delay (s)
tr@(1.5×lr)
12.5
25
50
100
200
300
400
500
Off
Accuracy: ±15% or below
tr@(6.0×lr)
0.5
1
2
4
8
12
16
20
Off
100ms
tr@(7.2×lr)
0.34
0.69
1.38
2.7
5.5
8.3
11
13.8
Off
Short Time
Current setting (A)
Isd = Ir×
1.5
2
3
4
5
6
8
10
Off
Accuracy: ±10%
Time delay (s)
tsd
I²t Off
0.05
0.1
0.2
0.3
0.4
I²t On @(10×lr)
0.1
0.2
0.3
0.4
I²t Off
Min. Trip Time (ms)
20
80
160
260
360
Max. Trip Time (ms)
80
140
240
340
440
Instantaneous
Current setting (A)
Ii = In×
2
3
4
6
8
10
12
15
Off
Tripping time
Ground fault
Pick-up (A)
Ig = In×
0.2
0.3
0.4
0.5
0.6
0.7
0.8
1
Off
Time delay (s)
I²t Off
0.05
0.1
0.2
0.3
0.4
Accuracy: ±10%(Ig˃0.4In)
I²t On @(1×ln)
0.1
0.2
0.3
0.4
±20%(Ig˃0.4In) .
or below 50ms
Min. Trip Time (ms)
20
80
160
260
360
Max. Trip Time (ms)
80
140
240
340
440
Earth leakage (Option)
Current setting (A)
I
Δn
0.5
1
2
3
5
10
20
30
Off
Time delay (ms)
Δt
Alarm Time(ms)
140
230
350
800
950
Accuracy: ±15%
Alarm Time(ms)
140
230
350
800
Trip Unit: A type
Below 50ms
tg
(I²t Off)
