Siemens Residual Current Protective Device

Siemens Residual Current Circuit Breakers are used in all systems up to 240/415VAC, devices of type AC trip in the event of sinusoidal AC residual currents, type A also trips in the event of pulsating DC residual currents with the following befenits:
■ Instantaneous RCCBs with N connection on the left-hand side enable simple bus mounting with standard pin busbars with miniature circuit breakers installed on the right-hand side;
■ Instantaneous RCCBs with N connection on the right-hand side can be bus-mounted with miniature circuit breakers using a simple pin busbar;
■ Instantaneous type A devices have a surge current withstand capability with current waveform 8/20μs of more than 1kA;
■ Super residual devices increase system availability, as unnecessary tripping is prevented in power supply systems with short-time glitches;
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Data Sheet
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Technical Specifications of Siemens Residual Current Protective Devices, 5SM3 series

RCCB, 5SM3, 2P/4P

Instantaneous

Super Resistant

Selective

Standards

IEC/EN61008-1, IEC/EN61008-2-1

Type A with current waveform 8/20μs

According to EN 60060-2

kA

1

3

5

Minimum operational voltage test function operation, VAC

100

Insulation coordination/Over voltage category

Pollution degree

3

Main connection

Top or bottom

Mounting position, on a standard mounting rail

Any

Degree of protection

According to IEC60529

IP20

Touch protection

According to IEC50274

Finger and back-of-hand safe

Ambient temperature

-25 to +45

Number of poles

Rated current, In

Rated residual current, In

Power loss per conducting path

Power losses per conducting path under rated current load

2P

16A

10mA

2.50W

30mA

0.82W

25A

30mA

2.00W

100/300mA

1.00W

40A

30mA

4.30W

100/300mA

2.50W

63A

30mA

4.20W

100/300mA

3.25W

80A

30mA

4.40W

100/300mA

3.65W

4P

25A

30mA

1.20W

300/500mA

0.47W

40A

30mA

3.00W

100/300/500mA

1.20W

63A

30mA

4.90W

100/300/500/1000mA

3.00W

80A

30mA

5.80W

300mA

4.80W

125A

30mA

8.90W

100/300/500mA

8.90W


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