Thermal Circuit Breaker 3120-F...
Description
The 3120 circuit breaker/switch combination is an ON/OFF switch
with integral overcurrent protection (S-type TO CBE to EN/IEC
60934). The trip element is a bimetal. Type 3120 is ideally suited for
overload protection of motors, pumps, transformers and cables.
The 3120 circuit breaker is also available as a switch-only version in
accordance with the IEC/EN 61058 (see data sheet switch 3120-F-..Q1).
Product characteristics:
l
rocker or push button actuation
l
single pole and double pole versions
l
reliable switching behaviour (positively trip-free)
l
convenient snap-in mounting
l
international approvals
Options and add-on modules:
illumination
l
water splash protection
l
auxiliary contacts
l
under voltage trip
l
remote trip
l
magnetic trip
l
push-in terminals
l
appliance inlet module
l
1
Technical data
For details please see Technical information
Rated voltage
Current rating range
AC 240 V, DC 50 V
0.1...20 A
(up to 30A upon request for single pole
units)
30,000
30,000
30,000
30,000
operations
operations
operations
operations
at
at
at
at
at
at
at
at
1
1
1
1
1
1
1
1
x
x
x
x
x
x
x
x
I
N
,
I
N
,
I
N
,
I
N
,
I
N
,
I
N
,
I
N
,
I
N
,
inductive
inductive
resistive
inductive
inductive
inductive
inductive
inductive
Typical applications
Medical and laboratory equipment, apparatus and machine
construction, professional tools, household and garden appliances,
offices machines, audio equipment, machine tools
Typical life 1-pole
0.1...20 A
0.1...4 A
4.5...16 A
DC 28 V:
0.1...20 A
Typical life 2-pole
AC 240 V:
AC 240 V:
DC 50 V:
Current ratings and internal resistance values
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
3.5
Internal
resistance
per pole (Ω)
94
24
12
5.30
4.20
2.90
1.50
0.9
0.80
0.45
0.27
0.0785
0.0595
0.0565
Current rating
(A)
4
4.5
5
6
7
8
10
12
14
15
16
18
20
Internal
resistance
per pole (Ω)
0.0435
0.0435
0.0325
0.0215
0.0165
0.0165
< 0.02
< 0.02
< 0.02
< 0.02
< 0.02
< 0.02
< 0.02
0.1...16 A 50,000 operations
17...20 A 30,000 operations
DC 50 V:
0.1...16 A 50,000 operations
17...20 A 50,000 operations
Ambient temperature
-30 … 60 °C
Insulation coordination
(IEC 60664)
Dielectric strength
Operating area
pole to pole (2-pole)
Insulation resistance
Interrupting capacity I
cn
2.5 kV /2 reinforced insulation at
operating area
test voltage AC 3,000 V
test voltage AC 1,500 V
> 100 MΩ (DC 500 V)
0.1...2 A
10 x I
N
2.5...20 A
1-pole 150 A
2-pole 250 A
Interrupting capacity (UL 1077)
I
N
1-pole, 2- pole
1-pole, 2- pole
0.1...20 A
0.1...20 A
U
N
AC 250 V
DC 50 V
I
nc
5000 A, C, 1
1000 A, C, 1
Degree of protection
(IEC 60529)
Vibration
Current consumption of illumination
Operating voltage
DC 12 V
DC 24 V
DC 48 V
AC 115 V
AC 230 V
Current consumption
Y
5.2 mA
4.5 mA
4.5 mA
2.8 mA
2.2 mA
R
2 mA
2.2 mA
2 mA
1.1 mA
0.9 mA
G
1.4 mA
1.6 mA
1.6 mA
1 mA
0.9 mA
Shock
Corrosion
Humidity
Mass
operating area IP40
terminal area IP00
with water splash cover IP54 or IP66
8 g (57-500 Hz), ± 0.61 mm (10-57 Hz)
test to IEC 60068-2-6, test Fc
10 frequency cycles/axis
30 g (11 ms)
test to IEC 60068-2-27, test Ea
96 hours at 5 % salt mist,
test to IEC 60068-2-11, test Ka
240 hrs in 95 % RH
test to IEC 60068-2-78,
test Cab
approx. 33 g (2-pole)
approx. 27 g (1-pole)
approx. 42 g (2-pole with PT terminals)
1806
www.e-t-a.de
1
Thermal Circuit Breaker 3120-F...
Order numbering code
Type No.
3120
thermal rocker-actuated circuit breaker
Mounting method
F
flange mounting snap-in frame
Size of frame
3
standard, to fit mounting cut-out 50.5 x 21.5 mm
5
standard, to fit mounting cut-out 44.5 x 22 mm
7
special style, to fit mounting cut-out 44.5 x 22 mm
Number of poles
1
1-pole, thermally protected
2
2-pole, thermally protected
5
2-pole, 1-pole thermally protected
Mounting frame design (F3 & F5)
1
collar height 1 mm
3
collar height 9 mm
4
collar height 2 mm with water
splash protection (IP54)
Mounting frame design (F7)
R
black
T
black with snap-on water splash cover
Terminal configuration
PT
push-in terminals
P7
blade terminals
H7
as P7, terminals 11 and 21 with flat head
screws M3.5 - standard for units with
undervoltage release module
N7
as P7, with additional shunt terminals 12(i)
and 22(i)
G7
as N7, terminals 11 and 21 with flat head
screws M3.5
Characteristic curve
T1
thermal trip
Actuator style
W
rocker for frame size F3 & F5
A
rocker for frame size F7
Colour and illumination
01.
rocker black opaque
02.
rocker white opaque
04.
rocker red opaque
14. R
rocker red translucent with
LED illumination
15. Y
rocker orange translucent with
LED illumination
19. G
rocker green translucent with
LED illumination
Marking for rocker style W
A
D
Q: 0 and 1
F
moulded in
Q
A D F X
X
Marking for rocker style A
Q
»I« and »O« moulded in
Illumination voltage range
(= operating voltage)
1
DC 12 V
2
DC 24 V
3
AC 115 V
4
AC 230 V
5
DC 48 V
0
I
ON
0 OFF
I
Order numbering code
Type No.
3120
thermal circuit breaker with push button actuation
Mounting
F
flange mounting snap-in frame
Size
2
special frame for fitting splash cover
3
mounting cut-out 50.5 x 21.5 mm (panel thickness
1-6.35 mm)
Number of poles
1
1-pole, thermally protected
2
2-pole, thermally protected
5
2-pole, 1-pole thermally protected
Style
F
frame with 2 push buttons
G
frame with one push button (reset only)
Terminal configuration
PT
push-in terminals
P7
blade terminals
H7
as P7, terminals 11 and 21 with flat head
screws M3.5 - standard for units with
undervoltage release module
N7
as P7, with additional shunt terminals 12(i)
and 22(i)
G7
as N7, terminals 11 and 21 with flat head
screws M3.5
Characteristic curve
T1
thermal trip
Actuators / colour / illumination
D01X
1 push button* black opaque
D02X
1 push button* white opaque
D04X
1 push button* red opaque
D19XG
1 push button* green translucent
with LED illumination
SGRX
2 push buttons green/red opaque
without illumination
SGRXG
2 push buttons green/red translucent
with LED illumination
Illumination voltage range
(= operating voltage)
1
DC 12 V
2
DC 24 V
3
AC 115 V
4
AC 230 V
5
DC 48 V
Current ratings
0.1...20 A
3120- F 3 2 F - P7 T1- S GRXG 4-10 A
*reset only
Packaging unit:
20, 25, 35, 50 or 60 pcs, depending on the version
ordering example
1
3120 -F 7 2 R - P7 T1 -A 14 QR 4
Current ratings
0.1...20 A
3120 -F 7 2 R - P7 T1 -A 14 QR 4 - 10 A
ordering example
2
www.e-t-a.de
1806
Thermal Circuit Breaker 3120-F...
Preferred types
preferred type F7
2-pole protected
3120-F72R-P7T1-
A14QR4-
preferred type F3
1-pole protected
3120-F311-P7T1-
W02D-
preferred type F3
2-pole protected
3120-F321-P7T1-
W01D-
preferred type F5
2-pole protected
3120-F521-P7T1-
W01D-
preferred ratings (A)
0.5 1 1.5 2 3 4 5 6 8 10 12 15 16 20
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Time/current characteristics
single or double pole load
0.1…2 A
10000
+60 °C
+140 °F
+23 °C
+73.4 °F
1000
-30 °C
-22 °F
0.5 1 2 3 4 5 6 8 10 12 15 16 20
x
x
x
x
x
x
x
x
Trip time in seconds
0.5 1 2 3 4 5 6 8 10 12 15 16 20
x
x
x
x
x
x
x
x
x
x
x
x
x
100
1
0.5 1 2 3 4 5 6 8 10 12 15 16 20
x
x
x
x
x
x
x
x
x
x
x
x
10
Approvals
Approval
authority
VDE
Standard
Rated
voltage
Current rating range
1
0.1
UL
IEC/EN 60934 AC 240 V
DC 50 V
DC 50 V
DC 28 V
AC 250 V
UL 1077
DC 50 V
AC 250 V
C22.2 No 235
AC 250 V
DC 50 V
AC 250 V
AC 240 V
DC 50 V
Trip time in seconds
CSA
CQC
GB 17701
0.1 A…20 A
0.1...20A (2-pole)
0.1...4 A (1-pole)
0.1 A…20 A
0,1 A…20 A
0,1 A…20 A
30 A (2 poles in par-
allel)
0,1 A…20 A
0,1 A…20 A
30 A (2 poles in parallel)
0.1 A…20 A
0.1 A…20 A
1
2
2.5…20 A
10000
4
6 8 10
… times rated current
20
40
+60 °C
+140 °F
+23 °C
+73.4 °F
1000
-30 °C
-22 °F
100
Schematic diagrams
10
2-pole,
thermally protected on both poles
11
line
21
2-pole,
thermally protected on one pole only
11
line
21
1
0.1
12(i)
12(k)
load
22(i)
22(k)
12(i)
12(k)
load
22(i)
1
2
4
6 8 10
… times rated current
20
40
1-pole,
thermally protected
11
line
The time/current characteristic depends on the ambient temperature.
In order to eliminate nuisance tripping, please multiply the current
rating by a derating factor (see chapter Technical Information)
ambient
temperature [°C]
-30
0.8
-20
0.84
-10
0.88
0
0.92
23
1
40
1.08
50
1.14
60
1.23
12(i)
12(k) load
22(i)
Temperature factor
1806
www.e-t-a.de
3
Thermal Circuit Breaker 3120-F...
Dimensions
3120-F2.F-…
retaining clip
panel
water splash cover
(see accessories)
10.7
74
60
±0.1
16.1
hole for screw
ø 4 mm e.g.: EJOT PT
14.1
screw K40
14
9
ø3.2
49
PT-screw
type K40
ø4 mm
10.7
21
blade terminal EN 60934 – 6.3 x 0.8
flat head screw M3.5x6
tightening torque max. 0.8 Nm
3.5
15.5
41
ø 3.2
12(i)
12(k)
11
3120-F2.F-PT...
12.65 12.65
5.5
cover
35.4
1
15
10
4.5
33
16.2
10.2
12(i)
12(k)
11
3
21
42.5
10
3120-F3.1
3120-F3.1-PT
3.5
10.2
12.65 12.65
5.5
25
7
16
OFF position
54
25
16
9
54
35
33
48
12(i)
12(k)
11
12(i)
12(k)
11
10.7
21
blade terminal
EN 60934 – 6.3 x 0.8
flat head screw M3.5x6
tightening torque max. 0.8 Nm
3.5
15.5
41
3
21
42.5
3120-F 3.3
collar height 9 mm
25
9
19.5
54
10
3120-F 3.4
with water splash protection (IP54)
27
10
19.5
56
35
35
3.8
35
33
33
12(i) 12(k)
11
12(i) 12(k)
11
10
10.7
21
3.5
15.5
41
3
21
10.7
3.5
15.5
41
3
blade terminal EN 60934 – 6.3 x 0.8
flat head screw M3.5x6
tightening torque max. 0.8 Nm
blade terminal EN 60934 – 6.3 x 0.8
flat head screw M3.5x6
tightening torque max. 0.8 Nm
4
www.e-t-a.de
10
10.7
1806
Thermal Circuit Breaker 3120-F...
Dimensions
3120-F3.F-…-S…
3120-F3.G-...-D...
optional illumination in ON position
OFF position
25
16.2
14.2
54
25
16.2
optional illumination in ON position
OFF position
14.2
54
15
1
33
12(i)
12(k)
11
15
10
33
12(i)
12(k)
11
10
10.7
21
blade terminal EN 60934 – 6.3 x 0.8
flat head screw M3.5x6
tightening torque max. 0.8 Nm
10
3.5
15.5
41
3
21
10.7
3.5
15.5
41
3
blade terminal EN 60934 – 6.3 x 0.8
flat head screw M3.5x6
tightening torque max. 0.8 Nm
3120-F 5.1
3120-F5.1-PT
12.65 12.65
5.5
25
7
16
optional illumination
48
25
16
9
48
35
33
12(i) 12(k)
11
48
12(i)
12(k)
11
10.7
21
3.5
15.5
41
3
21
42.5
blade terminal EN 60934 – 6.3 x 0.8
flat head screw M3.5x6
tightening torque max. 0.8 Nm
3120-F5.3
25
19.5
2
11
48
35
10
3120-F5.4
25
19.5
2
48
35
11
33
12(i)
12(k)
11
33
12(i)
12(k)
11
10.7
21
blade terminal EN 60934 – 6.3 x 0.8
flat head screw M3.5x6
tightening torque max. 0.8 Nm
3.5
15.5
41
3
10.7
21
3.5
15.5
41
3
blade terminal EN 60934 – 6.3 x 0.8
flat head screw M3.5x6
tightening torque max. 0.8 Nm
1806
www.e-t-a.de
10.7
10
5
能源基础设施
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
