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The Siemens MCB protects wires and cables automatically
against overload and short circuits in domestic, commercial and industrial
installations. In system where proper earthing is provided, the MCB
provides additional protection by instantaneous interruption of the
fault current, incase of earth faults, thereby eliminating the possibility
of excessive touch voltages. |
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5SQ2 |
5SX2 |
5SX4 |
5SX7 |
| Tripping characteristics |
B,C |
B,C |
A,B,C,D |
B,C,D |
| No. of poles |
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1 |
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2 |
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3 |
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1+N |
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3+N |
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| Rated voltage 230/400 V AC |
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| Operational voltage |
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min. AC/DC |
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V |
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max. DC |
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V/Pole |
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max. AC |
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V |
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Rated short-circuit capacity
acc. To DIN VDE 0641 AC kA
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3 |
6 |
10 |
10 |
| Endurance |
On the average 20,000 operations
at rated load |
| Ambient temperature oC |
-25 to +45, occasionally +55, max.
95% humidity, storage temperature: -40 to +75 |
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