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Issue C
1
%
Germany (0 91 87) 10-0 - USA (847) 827-7600 - UK (01296) 420336 - www.etacbe.com
Authority
VDE, Semko
(EN 60934)
Voltage ratings
AC 240 V, DC 28 V
DC 50 V
DC 50 V
AC 250 V, DC 28 V
AC 250 V, DC 50 V
Current ratings
0.1...20 A
0.1...20 A double pole
0.1...10 A single pole
0.1...20 A
0.1...20 A
BV, LRoS
UL, CSA
Voltage rating
Current ratings
Typical life
AC 250 V; DC 50 V
0.1...20 A (up to 30 A to special order)
50,000 operations for I
N
≤
16 A double pole
30,000 operations for I
N
≤
16 A single pole,
10,000 operations for I
N
>16 A
-30...+60
°
C
Rated impulse
Pollution
withstand voltage degree
2.5 kV
2
reinforced insulation in operating area
Ambient temperature
Insulation co-ordination
(IEC 664 and 664 A)
Dielectric strength
(IEC 664 and 664A)
operating area
between poles (2 pole)
Insulation resistance
Interrupting capacity I
cn
Test voltage
AC 3000 V
AC 1500 V
>100 M
(DC 500 V)
0.1...2 A
2.5...20 A
10 x I
250 A 2 pole, or
150 A 1 pole
U
N
AC 250 V
AC 250 V
AC 250 V
AC 250 V
AC 250 V
DC 50 V
Interrupting capacity
(UL 1077)
I
N
0.1... 2 A
2.5... 3 A
3.5... 8 A
9 ... 16 A
18... 20 A
0.1...20 A
operating area IP 40
(IP 54 with water splash protection)
terminal area IP 00
8 g (57-500 Hz),
±
0.61 mm (10-57 Hz)
to IEC 68-2-6, Test Fc
10 frequency cycles/axis
30 g (11 ms)
to IEC 68-2-27, Test Ea
96 hours at 5 % salt mist,
to IEC 68-2-11, Test Ka
240 hours at 95 % RH,
to IEC 68-2-3, Test Ca
approx. 33 g (double pole)
approx. 27 g (single pole)
2 pole
200 A
1000 A
2000 A
3500 A
5000 A
1000 A
Degree of protection
(IEC 529/DIN 40050)
Vibration
Shock
Corrosion
Humidity
Mass
Thermal Overcurrent Circuit Breaker 3120-F...
Description
An extremely versatile range of rocker switch/thermal circuit breakers
(S-type TO CBE to EN 60934) offering the choice of single pole, double
pole with single pole protection, and double pole with protection on
both poles. Designed for snap-in panel mounting with versions availa-
ble for three different panel cut-out sizes. Neon illumination is optional
(filament bulb for low voltages) and there is a range of colours and
markings for the rocker. Under overload conditions the rocker returns
to the OFF position.
Any one of the following additional function modules can be supplied
factory fitted to the rear of the switch/circuit breaker.
G
Under voltage release coil (for double pole versions only).
G
Magnetic trip coil for short circuit protection.
G
Magnetic trip coil for remote relay trip.
G
Auxiliary contacts for status signalling.
G
Mechanical slide interlock.
Approved to CBE standard EN 60934 (IEC 934).
Technical data
3120-F...
Approvals
Current
rating
(A)
0.1
0.2
0.3
0.4
0.5
0.6
0.8
1
1.2
1.5
2
2.5
3
Internal
resistance per
pole (
)
94
24
12
5.30
4.20
2.90
1.50
0.9
0.80
0.45
0.27
0.0785
0.0595
3.5
4
4.5
5
6
7
8
10
12
14
16
18
20
0.0565
0.0435
0.0435
0.0325
0.0215
0.0165
0.0165
<0.02
<0.02
<0.02
<0.02
< 0.02
< 0.02
Standard current ratings and typical internal resistance values
Typical applications
Motors, transformers, solenoids, extra low voltage wiring systems,
office machines, electro-medical equipment, power supplies,
communications systems.
Accessories
Y 303 068 01
Insulated cover, snap-fitted to the exposed areas of the two
incoming terminals (when terminal screws are not specified)
to provide brush contact protection.
Terminal adapter to convert screw terminals to push on
connections when factory fitted under voltage release module
is specified (two adapters required per unit).
Retaining clip for -F3 mounting frame for panel thickness
under 2 mm.
As above for panel thickness under 4 mm.
As above, for -F5 mounting frame.
Blanking piece in -F3 size mounting frame.
Rear terminal shroud.
Separate water splash cover for use with -F4 and -F5 size
mounting frames.
Y 303 862 01
Y 303 675 01
Y 303 675 02
Y 303 676 01
Y 303 885 31
Y 304 275 01
X 221 619 01
Current
rating
(A)
Internal
resistance per
pole (
)