vacuum interrupter

                           Data

Unit

Value

Rated Voltage

kV

12

Lightning Impulse Withstand Voltage (Peak)

kV

85

Short-time (1min) Power-frequency Withstand Voltage

kV

50

Rate Frequency

Hz

50

Rated Current

A

5000

Rated Short-time Withstand Current

kA

63

Rated Duration of Short-circuit

s

3

Rated Peak Withstand Current

kA

176

Rated Short-circuit Making Current

kA

176

Rated Short-circuit Breaking Current

kA

63

Max. Dc component

75%

Switch Operations of Rated Short-circuit Breaking Current

Operations

6

Rated Single Capacitor Bank Breaking Current

A

400

Rated Back-to-back Capacitor Bank Breaking Current

A

400

Mechanical Endurance

Operations

10000

Clearance Between Open Contacts

mm

11±1

Contact Closed Force Due to Bellows and Atmosphere

N

400±40

Counterforce of Contact at Full Stroke

N

475±40

Circuit Resistance at Min. Rated Contact Force

μΩ

≤10

Contact Limit Erosion 

mm

3

Mass of Moving Parts

kg

6.85

Internal Gas Pressure

Pa

<1.33×10-3

Shelf Life

Year

20

Rated Operating Sequence

CO 15min CO

Data

Unit

Value

Average Opening Speed (first 6mm)

m/s

1.4±0.2

Average Closing Speed (last 6mm)

m/s

1.2±0.2

Contact Bounce Duration at Closing Operation

ms

≤2

Out of Simultaneity of Contact Closing and Opening                           

ms

≤1

Rated Contact Pressure

N

8000+/-500

Max rebound of contact at opening Operation        

mm

2

Overtravel during Opening

mm

≤2