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Vacuum Interrupter TD-12/1250-25 (JUC613) from JUCRO Electric

Vacuum interrupter JUCA 12KV 1250A 25KA (JUC613) for VCB vacuum circuit breaker use from JUCRO Electric

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Product Detail

Vacuum Interrupter TD-12/1250-25(JUCA613) for circuit breaker from JUCRO Electric


Main technical parameters


 

Items

Value

Rated voltage

12kV

Rated current

1250A

Rated frequency

50Hz

(1min) Rated power frequency withstand voltage

42kV

Rated lightning impluse withstand voltage

75kV

Rated short circuit breaking current(peak value)

25KA

Rated short circuit making current(peak value)

63kA

Breaking operations under rated short circuit breaking current

30 times

Rated short time withstand current

25kA

Rated withstand current (peak value)

63kA

Rated duration of the short circuit

4s

Circuit resistance at lowest rated contacts force

≤25μΩ

Mechanical life

20000 times

Closing force due to bellows and atmosphere

80±40N

Force required to hold contacts opening at full stroke

120±50N

Limiting abrasion of contacts

3mm

Storage life

20 years

Moving mass of interrupter

0.84kg

Rated operating sequence

O-0.3s-CO-180s-CO

 

 

 

 

Model No.: JUCA-12/1250-25(JUCA613)

 

Mechanical requiements of vacuum circuit breaker

Items

Value

Clearance between opening contacts

11±1mm

Average opening speed

1.1±0.2 m/s

Average closing speed

0.6±0.2 m/s

Rated contacts pressure

2000±200N

Contacts bouncing duration at closing operation

≤2ms

Contacts re-bouncing clearance at opening operation

≤2mm

Synchronism of three phases

≤1ms

 

Note:

# Must contact with JUCRO.


No comment

Product Detail

Vacuum Interrupter TD-12/1250-25(JUCA613) for circuit breaker from JUCRO Electric


Main technical parameters


 

Items

Value

Rated voltage

12kV

Rated current

1250A

Rated frequency

50Hz

(1min) Rated power frequency withstand voltage

42kV

Rated lightning impluse withstand voltage

75kV

Rated short circuit breaking current(peak value)

25KA

Rated short circuit making current(peak value)

63kA

Breaking operations under rated short circuit breaking current

30 times

Rated short time withstand current

25kA

Rated withstand current (peak value)

63kA

Rated duration of the short circuit

4s

Circuit resistance at lowest rated contacts force

≤25μΩ

Mechanical life

20000 times

Closing force due to bellows and atmosphere

80±40N

Force required to hold contacts opening at full stroke

120±50N

Limiting abrasion of contacts

3mm

Storage life

20 years

Moving mass of interrupter

0.84kg

Rated operating sequence

O-0.3s-CO-180s-CO

 

 

 

 

Model No.: JUCA-12/1250-25(JUCA613)

 

Mechanical requiements of vacuum circuit breaker

Items

Value

Clearance between opening contacts

11±1mm

Average opening speed

1.1±0.2 m/s

Average closing speed

0.6±0.2 m/s

Rated contacts pressure

2000±200N

Contacts bouncing duration at closing operation

≤2ms

Contacts re-bouncing clearance at opening operation

≤2mm

Synchronism of three phases

≤1ms

 

Note:

# Must contact with JUCRO.




Vacuum Interrupter TD-12/1250-25 (JUC613)...

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