
148
2
%
Germany (0 91 87) 10-0 - USA (847) 827-7600 - UK (01296) 420336 - www.etacbe.com
Issue C
Internal connection diagrams
Typical time/current characteristics at 23
°
C
Insulated cover
Y 303 068 01
Accessories
Single or double pole load
0.1...2 A
10000
AC
therm.-magn. protection on one pole
thermally protected on the other pole
therm.-magn. protection on one pole
unprotected on the other pole
2.5...16 A
AC
Y303 675 01 suitable
for panel thickness < 2 mm
Y303 675 02 suitable
for panel thickness < 4 mm
Retaining clip for 3120-F3...
Y 303 675 01/02
Blanking piece in -F3... size mounting frame
Y 303 885 31
Thermal-Magnetic Circuit Breaker 3120-...-M1-..
Separate water splash cover for use with
-F4../-F5.. size mounting frames
X 221 619 01
48
1
2
4
6 8 10
20
40
T
… times rated current
1000
100
10
1
0.1
0.01
0.001
60 80100
T
1
2
4
6 8 10
20
40
… times rated current
10000
1000
100
10
1
0.1
0.01
0.001
60 80100
2.5
9
0
20
50.5
2
58
2
*
44.5
2
52
2
2
0
1
1
1
R01
R035
R3
without bends
sharp-edged
Retaining clip for 3120-F5...
Y 303 676 01
25
16.5
3
3
21
54
1
41
31
matt finish
Time/current characteristics are calibrated at 23
°
C (see page 8). For operation
at other temperatures please apply the factors below to determine the circuit
breaker rating required.
Ambient temperature
°
C
-30 -20 -10 0 +23 +40 +50 +60
Multiplication factor
0.8 0.84 0.88 0.92 1 1.08 1.14 1.23
2
3
60
73
3
1
8
4.4
Separate water splash cover for style -F2 see page 72
21
11
I >
line
12(i)
22(i)
12(k)
22(k)
12
21
11
I >
line
12(i)
22(i)
12(k)
12
N.B.
Magnetic tripping
currents are increased
by 25% on DC supplies.