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Circuit breaker - a contact switching device capable of switching, conducting, and disconnecting currents under normal conditions in the circuit, as well as switching, conducting, and automatically disconnecting currents during rated abnormal conditions in the circuit, such as short-circuit currents. Circuit breakers can be single-pole, two-pole, three-pole, or four-pole and have the following structural components: main contact system, arc suppression system, trip unit drive, and trip units. VA47-63 circuit breakers are designed to protect distribution and group circuits with various loads: electrical appliances, lighting - switches with characteristic B; motors with small inrush currents (compressor, fan) - switches with characteristic C; motors with large inrush currents (lifting mechanisms, pumps) - switches with characteristic D.
Mounting installation depth
74 мм
For flush mounting
Yes
Number of protected poles
1
Rated short-circuit breaking capacity Icu IEC 60898 at 230 V
4.5 кА
Rated short-circuit breaking capacity Icu IEC 60898 at 400 V
4.5 кА
Rated short-circuit breaking capacity Icu IEC 60947-2 at 230V
4.5 кА
Rated short-circuit breaking capacity Icu IEC 60947-2 at 400 V
4.5 кА
Rated impulse voltage
4000 кВ
Rated voltage
230 В
Rated insulation voltage Ui
660 В
Rated current
20 А
Total number of poles
1
Ambient operating temperature to
50 град.C
Ambient operating temperature from
-40 град.C
Current type
Alternating current (AC)
With switched neutral conductor
No
Flexible stranded conductor cross-section up to
25 кв.мм
Stranded flexible conductor cross-section from
1 кв.мм
Solid conductor cross-section to
25 кв.мм
Solid conductor cross-section from
1 кв.мм
Pollution degree (number)
2
IP protection rating
IP20
Tripping characteristic
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Frequency at
50 Гц
Frequency from
50 Гц
Width in modular units
1
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