Description

ZW6-12/630-16(20) outdoor vacuum circuit breaker is suitable for three-phase power system with l 2kV and below, ac 50Hz. It is mainly used for dividing agricultural network and urban network, combining load current, overload current and short-circuit current. It can also be used in other similar places, and can also be used as a block switch of 12kV class power grid in urban areas.

Working conditions

1. Ambient air temperature: upper limit +40'C, lower limit -40'C;

2.Altitude: <2000m;

3. Relative humidity: daily average is no more than 95%, and monthly average is no more than 90%;

4. Wind pressure: not exceeding 700Pa(equivalent to the wind speed of 34m/s);

5. Air pollution level is grade IV according to GB5582;

6. Earthquake intensity does not exceed 8 degrees .

Model and meanings

Main technical parameters

no	Item			Unit	Data
1	Rated voltage			kV	12
2	Rated insulation level	Power frequency withstand voltage	dry	kV	42
			Wet (to ground)		34
		Lightning shock resistance (peak)			75
3	Rated current			A	630
4	Rated frequency			Hz	50
5	Rated short circuit breaking current			kA	12.5, 16, 20
6	Rated short circuit shut-off current				31.5, 40, 50
7	Rated peak withstand current				31.5, 50, 50
8	Rated short - term withstand current				12.5, 16, 20
9	Operating sequence			Times	0-0.3s-C0-180s-CO
10	Rated number of short circuit current breaking				30
11	Mechanical life				10000
12	Rated operating voltage with CT spring operating mechanism			V	DC24, 48V, AC DC110V, 220V
13	Contact allows wear thickness			mm	3
14	Rated current of overcurrent trip			A	5
15	Weight			kg	130(standard)

Outline dimensions

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High Voltage Vacuum Circuit Breaker

Outdoor high voltage vacuum circuit breaker ZW6-12/630-16(20)