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BETA Protecting
Residual Current Protective Devices
5
SM2 RC units, type A
2/18
Siemens ET B1 · 10/2008
2
*
You can order this quantity or a multiple thereof.
■
Technical specifications
5
SM2
Standards
IEC/EN 61009-1 (VDE 0664-20), IEC/EN 61009-2-1 (VDE 0664-21),
IEC/EN 61543 (VDE 0664-30)
Approved acc. to
EN 61009-1, EN 61009-2-1; IEC 61009-1, IEC 61009-2-1
Surge current withstand capability
With current waveform 8/20 μs
Acc. to DIN VDE 0432-2
•
Instantaneous
kA > 1
•
Super resistant
kA > 3
•
Selective
kA > 5
Minimum operational voltage for
test function operation
•
Up to
I
n
= 63 A, 2 and 3-pole
V AC 195
•
Up to
I
n
= 63 A, 4-pole
V AC 100
•
Up to
I
n
= 80 ... 100 A
V AC 100
Rated voltage U
n
V AC 230 ... 400
Rated frequency f
n
Hz
50 ... 60
Rated currents
I
n
A
0.3 ... 16; 0.3 ... 40; 0.3 ... 63; 80 ... 100
Rated residual currents I
n
mA 10, 30, 100, 300, 500, 1000
Terminal conductor cross-sections
•
Up to
I
n
= 63 A
mm
2
1.5 ... 25
•
Up to
I
n
= 80 ... 100 A
mm
2
6.0 ... 50
Terminal tightening torque
Nm 2.5 ... 3.0
Mains connection
Either top or bottom
Mounting position
Any
Degree of protection
Acc. to EN 60529 (VDE 0470-1)
IP20, with connected conductors
Touch protection
Acc. to EN 50274 (VDE 0660-514)
Finger and back-of-hand safe
Service life
Test cycle acc. to DIN/EN 61009
> 10 000 switching cycles
Storage temperature
°C -40 ... +75
Ambient temperature
°C -25 ... +45,
Marked with
Resistance to climate
Acc. to IEC 60068-2-30
28
cycles (55 °C; 95 % rel. humidity)
CFC and silicone-free
Yes
-25
-25
(
Type A)
© Siemens AG 2008