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Vacuum Interrupter For Indoor Circuit Breakers TD-12/1250-25 (2D53)

Short Description:


Product Detail

Product Tags

sd

Notes

1. Meets or exceeds the electrical endurance requirements of  class E2 for autoreclosing duty per IEC62271-100 and GB1984-2003.

2. Rated characteristics tobe givenon request.

3. Rated insulation valuesrequire extemal insulati on, such as Sf6, oil or solid dielectric material etc.

Main Technical Specifiation

Rated Voltage

KV

12

Rated Current

A

1250

Rated Frequency

Hz

50

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

KV

42/48
Rated lightning Impulse Withstand Voltage(Peak)

KV

75

Rated Short-circuit Brenking Current

KA

25

Rated Peak Withstand Current

KA

63

Rated Short-circuit Making Current

KA

63

Rated Short-time Withstand Current

KA

25

Rated Duration of Short-circ

S

4

Rated Single Capacitor Bank Breaking Current

A

630

Rated Back to Back Capacitor Bank Breaking Current

A

400

Rated Short-circuit Making Current

Times

30

Mass of Moving Parts

Kg

1.2

Mechanical Endurance

Times

10000

Contact Closed Force Due to Bellows and Atmosphere

N

110±30
Counterforce of Contact at Full Stroke

N

190±30
Circuit Resistance at Min.Rated Contact Force  μΩ

<25

Contact Limit Erosion

mm

3

Storage Life

Years

20

Mechanical Data Of Vacuum Switch Equipped With The Interrupters

Clearance Between Open Contacts

mm

9±1

Average Opening Speed

m/s

1.1±0.2

Average Closing Speed

m/s

0.7±0.2

Rated Contact Pressure

N

2000±200

Contact Bounce Duration at Closing Operation

ms

<2

Out of Simultaneity of Contact Closing and Operation

ms

<2

Maximum Rebound During Opening

mm

<2


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