
226
4
Issue C
%
Germany (0 91 87) 10-0 - USA (847) 827 - 7600 - UK (01296) 420336 - www.etacbe.com
Internal wiring diagrams
Dimensions
Typical time/current characteristics of type 446-...
High Performance Thermal-Magnetic Circuit Breakers 446/447/449
Typical time/current characteristics
447-...
449-... 125...400 A
449-... 500 A
50 % ON duty
DC
DC
DC
DC
Circuit breakers with remote disconnection facility will trip 10 % faster.
hex nut M8
14 mm usable thread depth
60
3
4
26
20
2
1
6
3
7
1
2
4
2
35
100
106
hex nut
ISO 4032-M12-Cu2-E1P
lock washer
DIN 137-B12-
X12CrNi 177
hex screw
ISO 4017-M12x30-Cu2-E1P
170
140
current rating in A
43.5
12
8.5
AUS OFF
AUS OFF
EIN ON
cylinder head screw ISO 1580-M4x6
with lock washer DIN 137-B4
tightening torque max. 0.8 Nm
O
O
N/C 4/5
N/O 6/7
FA terminal
1
2
4
6 8
10
20
40
… times rated current
10000
1000
100
10
1
0.1
0.01
0.001
60 80100
T
… times rated current
+23
°
C
-55
°
C
+75
°
C
1
2
4
6 8
10
20
40
10000
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
T
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
line 1
5
4
7
6
I >
2
line 1
I >
2
Si
FA
8
recommended
link for FA coil
protection