
Issue C
4
%
Germany (0 91 87) 10-0 - USA (847) 827 - 7600 - UK (01296) 420336 - www.etacbe.com
225
Voltage rating
Current rating range
DC 28 V
type 446: 30...400 A
type 447: 100...400 A
type 449: 125...500 A
10 A
Auxiliary circuit
Electrical remote disconnection (-FA)
operating voltage
operating current
max. pulse time
switching time
Typical life
DC 12 V or DC 24 V
approx. 18 A or 12 A
10 ms < t
ON
< 20 ms / t
OFF
> 10 s
< 20 ms
1000 operations at I
2000 operations mechanical
-55...+75
°
C
Rated impulse
withstand voltage degree
1.5 kV
Ambient temperature
Insulation co-ordination
(IEC 664 and 664A)
Pollution
3
Dielectric strength
(IEC 664 and 664A)
operating area
main circuit to
auxiliary contacts
Insulation resistance
Interrupting capacity I
cn
Degree of protection
(IEC 529/DIN 40050)
Vibration
Test voltage
AC 1000 V
AC 1000 V
>100 M
(DC 500 V)
10,000 A
operating area IP 40
terminal area IP 00
without auxiliary contacts:
10 g (56-500 Hz)
±
0.76 mm (10-55 Hz)
with auxiliary contacts:
4 g (56-500 Hz)
±
0.30 mm (10-56 Hz)
to VG 95210, sheet 19/IEC 68-2-6, test Fc
without auxiliary contacts: 50 g (11 ms)
with auxiliary contacts: 20 g (11 ms)
to VG 95210, sheet 28/IEC 68-2-27, test Ea
96 hours at 5 % salt mist
to VG 95210, sheet 2/IEC 68-2-11, test Ka
240 hours at 95 % RH
to VG 95210, sheet 7/IEC 68-2-3, test C
approx. 850 g
Shock
Corrosion
Humidity
Mass
Single pole thermal-magnetic circuit breakers with tease-free, trip-free,
press-to-reset snap action mechanism and special dual button manual
release which avoids the danger of unintended disconnection (M-type
TM CBE to EN 60934). Surface mounted, compact design available
with fast acting, standard and delayed switching characteristics. Options
include auxiliary contact and remote electrical disconnection.
Description
446-... 447-... 449-...
Ordering information
Technical data
High Performance Thermal-Magnetic Circuit Breakers 446/447/449
Authority
Type 449:
VG 95345, part 15
Type 447:
QPL Sweden
Voltage ratings
Current ratings
DC 28 V
125...500 A
DC 28 V
125...400 A
Approvals
Heavy duty vehicles, battery systems, defence equipment.
Typical applications
Current
rating (A)
446
30
40
50
60
70
80
90
100
125
150
170
200
225
250
300
350
400
Internal
resistance (
)
Current
rating (A)
447
100
125
160
225
300
400
449
125
160
225
315
350
400
500
only with 50 % ON duty
Internal
resistance (
)
Standard current ratings and typical internal resistance values
0.006
0.0048
0.0038
0.0028
0.0025
0.0023
0.0019
0.0016
< 0.001
< 0.001
< 0.001
< 0.001
< 0.001
< 0.001
< 0.001
< 0.001
< 0.001
< 0.002
< 0.001
< 0.001
< 0.001
< 0.001
< 0.001
< 0.001
< 0.001
< 0.001
< 0.001
< 0.001
< 0.001
< 0.001
Type No.
446 / 447 / 449 single pole base mounting
Terminal design
K
screw terminals M12
Manual release
H
standard
Version
N
FN
general application (excluding type 449)
vehicle application (excluding type 446)
Auxiliary contacts
(optional)
Si
2 electrically separate auxiliary contacts
Remote trip
(optional for types 447 and 449)
FA12 DC 12 V coil voltage
FA24 DC 24 V coil voltage
Current ratings
30...400 A type 446
100...400 A type 447
125...500 A type 449
447 - K - H - FN - - - 200 A ordering example
The exact part number required can be built up from the table of choices shown
above. Ordering references for optional features should be omitted if not required.