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Data is subject to errors and technical modifications.
Modular Devices
& Enclosures
Changeover Switches
Technical Data
Electrical Characteristics
Family
SF
Modular size
1 module
2 module
4 module
Cat ref.
SFH125
SFM125 SFT125
SFH225
SFT225
SFT240
SF263
Thermal current Ith (40°C)
25A
25A
25A
25A
25A
40A
63A
Operational frequency
50 / 60 Hz 50 / 60 Hz 50 / 60 Hz 50 / 60 Hz 50 / 60 Hz 50 / 60 Hz 50 / 60 Hz
Rated operation voltage in AC
230V
Rated insulation voltage (U i )
440V
440V
440V
440V
440V
440V
500V
Rated impulse withstand voltage U imp
4 KV
4 KV
3 KV
6 KV
6 KV
6 KV
4 KV
Protection degree
2
2
2
3
2
2
2
Working temperature
-20 to 50°C -20 to 50°C -20 to 50°C -20 to 50°C -20 to 50°C -20 to 50°C -20 to 50°C
Storage temperature
-40 to 80°C -40 to 80°C -40 to 80°C -40 to 80°C -40 to 80°C -40 to 80°C -40 to 80°C
Operational Currents I e
Rated voltage
Load duty
category
400V AC
AC 22A
25A
25A
25A
25A
25A
40A
63A
400V AC
AC 22B
25A
25A
25A
25A
25A
40A
63A
Short circuit characteristic
Rated short time withstand current 1s
Icw (rms)
IEC 60947-3 375A / 1sec
600A / 1sec 4.5kA cond.
Prospective short circuit current (rms)
EN 60669
3kA
3kA
3kA
6kA
6kA
n/a
n/a
Mechanical characteristic
Rigid cable section
35 mm²
35 mm²
35mm²
25 mm²
25 mm²
25 mm²
25 mm²
flexible cable section
10 mm²
10 mm²
10 mm²
16 mm²
16 mm²
16 mm²
16 mm²
Tightening torque
1.8 Nm 1.8 Nm 1.8 Nm 1.8 Nm 1.8 Nm 1.8 Nm 1.8 Nm
IP protection degree
20
20
20
20
20
20
20
Mechanical endurance (number of
cycle)
200,000
200,000
200,000
200,000
200,000
200,000
100,000
Electrical endurance @ AC22 (number
of cyles)
25,000
25,000
25,000
5,000
5,000
2,500
5,000
Overall dimension
Width (mm)
17.5
17.5
17.5
35
35
35
71.5
Height (mm)
83
83
83
83
83
83
90
Depth (mm)
68
68
68
68
68
70
68