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HomeProductsVacuum Circuit Breaker

ZN85-40.5 Series

Indoor High Voltage Vacuum Circuit Breaker
Rated voltage: 40.5KV
Rated current: 1250-2500A
Propose: Medium-voltage load switching and circuit control、 rapid fault isolation and interruption、 system stability and power quality assurance、 modular integration of switch cabinets
Temperature: -15°C~+40°C、Alititude<1000m
Standards: IEC 62271-100
ZN85-40.5 Series - 华通大图
ZN85-40.5 Series - 华通大图2
ZN85-40.5 Series - 华通大图3
ZN85-40.5 Series - 华通大图
ZN85-40.5 Series - 华通大图2
ZN85-40.5 Series - 华通大图3
Application & Technical Parameters
Environmental Conditions

♦ Ambient temperature: -15r~+40r;

♦ Altitude: <1000m;

♦ Relative humidity: daily average <95%, monthly average <90%;

♦ Earthquake intensity: <8 level;

♦ Places without fire, explosion hazard, serious filthy, chemical corrosion, as well as intense vibration.


Main Technical Parameters

No

Item

Unit

Value

1

Rated voltage

kV

40.5

2

Rated current

A

1250 1600, 2000, 2500

3

Rated short circuit breaking current

kA

25, 31.5

4

Dynamic current (peak)

63, 80

5

4s thermal stability current

25, 31.5

6

Rated short circuit making current (peak)

63, 80

7

Rated short circuit current breaking number

Times

20

8

Rated operating sequence

 

O-0.3s-CO-180s-CO

9

1 min power frequency withstand voltage

kV

95

10

Rated lightning impulse withstand voltage

185

11

Mechanical life

Times

10000

12

Rated single capacitor bank switching current

A

630

13

Rated back-to-back capacitor bank current

400

14

Rated voltage of energy storage motor

V

AC/DC 220/110

15

Power of energy storage motor

W

≤230

16

Energy storage time

s

≤15

17

Ratea voltage of closing/opening coil

V

DC 220/110

18

Rated current of closing/opening coil

A

1.05(110V) 0.96(220V)

19

Clearance between open contacts

mm

20±2

20

Contact travel

7.5±1.5

21

Three phase opening and closing asynchronism

ms

≤2

22

Contact closing bounce time

≤3

23

Main circuit resistance (not include contact arm)

μΩ

≤40

General Structure Drawing and Installation Size

♦ Draw out type assembled pole

♦ Draw out type embedded pole

华通图片.png

Contact Us
NO.203,Weiqi road,yueqing economic development zone, Yueqing, Zhejiang, China.