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.
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
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Options and add-on modules:
l illumination
l water splash protection
l auxiliary contacts
l under voltage trip
l remote trip
Technical data
l magnetic trip (see thermal-magnetic circuit breakers)
l push-in terminals
For details please see Technical information
l appliance inlet module
Rated voltage
AC 240 V, DC 50 V
Current rating range
0.1...20 A
(up to 30A upon request for single pole
units)
Typical applications
Typical life 1-pole
Medical and laboratory equipment, apparatus and machine
construction, professional tools, household and garden appliances,
offices machines, audio equipment, machine tools
AC 240 V:
DC 50 V:
0.1...20 A 30,000 operations at 1 x IN, inductive
0.1...4 A 30,000 operations at 1 x IN, inductive
4.5...16 A 30,000 operations at 1 x IN, resistive
0.1...20 A 30,000 operations at 1 x IN, inductive
DC 28 V:
Typical life 2-pole
Current ratings and internal resistance values
AC 240 V:
DC 50 V:
0.1...16 A 50,000 operations at 1 x IN, inductive
17...20 A 30,000 operations at 1 x IN, inductive
0.1...16 A 50,000 operations at 1 x IN, inductive
17...20 A 50,000 operations at 1 x IN, inductive
Current rating Internal
Current rating Internal
(A)
resistance
(A)
resistance
per pole (Ω)
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
Ambient temperature
-30 … 60 °C
0.1
0.2
0.3
0.4
0.5
0.6
0.8
1
94
4
Insulation coordination
(IEC 60664)
2.5 kV /2 reinforced insulation at
operating area
24
4.5
5
Dielectric strength
12
Operating area
pole to pole (2-pole)
test voltage AC 3,000 V
test voltage AC 1,500 V
5.30
6
4.20
7
Insulation resistance
> 100 MΩ (DC 500 V)
2.90
8
Interrupting capacity Icn 0.1...2 A
2.5...20 A
10 x IN
1-pole 150 A
2-pole 250 A
1.50
10
12
14
15
16
18
20
0.9
Interrupting capacity (UL 1077)
IN
1.2
1.5
2
0.80
UN
Inc
0.45
1-pole, 2- pole
1-pole, 2- pole
0.1...20 A
0.1...20 A
AC 250 V
DC 50 V
5000 A, C, 1
1000 A, C, 1
0.27
2.5
3
0.0785
0.0595
0.0565
Degree of protection
(IEC 60529)
operating area IP40
terminal area IP00
with water splash cover IP54 or IP66
3.5
Vibration
8 g (57-500 Hz), 0.61 mm (10-57 Hz)
test to IEC 60068-2-6, test Fc
10 frequency cycles/axis
Current consumption of illumination
Shock
30 g (11 ms)
test to IEC 60068-2-27, test Ea
Operating voltage
Current consumption
Corrosion
Humidity
96 hours at 5 % salt mist,
test to IEC 60068-2-11, test Ka
Y
R
G
DC 12 V
DC 24 V
DC 48 V
AC 115 V
AC 230 V
5.2 mA
4.5 mA
4.5 mA
2.8 mA
2.2 mA
2 mA
2.2 mA
2 mA
1.1 mA
0.9 mA
1.4 mA
1.6 mA
1.6 mA
1 mA
240 hrs in 95 % RH
test to IEC 60068-2-78,
test Cab
Mass
approx. 33 g (2-pole)
approx. 27 g (1-pole)
approx. 42 g (2-pole with PT terminals)
0.9 mA
1616
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