China OEM Socket And Switch Models - TZN85-40.5 Indoor high voltage vacuum circuit breaker – TENPRO

Product characteristics

·Reinforced insulating products

·Customizable high altitude

TZN85-40.5

Indoor high voltage vacuum circuit breaker

Outline

The circuit breaker is suitable for the three-phase AC 50Hz / 40.5kV system and can be used in industrial and mining enterprises and power plants and substations. It is used as a combined load current, overload current, and short-circuit current, and can be used in frequent operation situations.

Model Description
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Main technical parameters

 

Serial No.

Item

Unit

参数 parameter

1

rated voltage

kV

40.5

2

1min power frequency voltage (RMS)

kV

95

3

lightning shock withstand voltage (peak)

kV

185

4

rated frequency

Hz

50

5

rated frequency

A

1250、1600、2000

6

rated short-time withstand current

kA

25、31.5

7

rated peak tolerant current

kA

63, 80

8

rated short circuit duration

s

4

9

rated short-circuit breaking current

kA

25、31.5

10

rated short-circuit closing current

kA

63,80

11

rated operation sequence

 

0-0.3s-C0-180s-C0

12

breaking time

ms

<80

13

rated short circuit breaking current breaking times

times

20

14

Single capacitor combination breaking current

A

630

15

back-to-back capacitor combination breaking current

A

400

16

rated operational voltage

V

-110/-110,-220/-220

17

mechanical life

times

10000

 

 

 


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