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Ningbo Ville Electric Co., Ltd.

In Door Breaker Zn-12(Vkp), Switch Accessories, Breaker manufacturer / supplier in China, offering Circuit Breaker; Vacuum Circuit Breaker (ZN12), 230kv Auto Power Transformer / Power Distribution Transmission /Power Transformer, Gas Insulation Metal-Clad Switchgear Gis and so on.

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Supplier Homepage Product High Voltage Circuit Breaker Circuit Breaker; Vacuum Circuit Breaker (ZN12)

Circuit Breaker; Vacuum Circuit Breaker (ZN12)

FOB Price: US $10,000 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $10,000/ Piece
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Port: Ningbo, China
Production Capacity: 100000
Payment Terms: L/C, T/T, D/P, Paypal

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Circuit Breaker
24 Products
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Basic Info
  • Model NO.: ZN12
  • Operation: Electric Type
  • Arc-extinguishing Medium: Vacuum
  • Structure: Moulded Case Circuit Breaker
  • Type: Circuit Breaker
  • Certification: VDE, ISO9001-2000, CE, CCC
  • Transport Package: Wooden Packing
  • Origin: Ningbo China
  • Breaking Capacity: High Voltage Circuit Breakers
  • Speed: High-Speed Circuit Breaker
  • Installation: Fixed
  • Poles Number: 3
  • Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
  • Trademark: VILLE
  • Specification: Iec
Product Description
ZN12 Indoor AC HV Vacuum Circuit breaker
Base on the technology of Germany Siemens, ZN12-40.5 Indoor AC HV Vacuum Circuit breaker is developed. It is an indoor switchgear used for the power system with 40.5 kV rated voltage, three-phase AC 50 Hz. The circuit breaker is able to be operated frequently and break the false short circuit current for many times. It is not only suitable for trolley switchgear but for fixed switchgear to protect and control the apparatus in industrial and mining field, enterprises, power plant and substation.

High breaking capability, long endurance. Adopting integration spring operating mechanism, it is simple in structure, small in size and reliable in performance. The main galvanic circle and operating mechanism is in front and back arrangement and they are flexible and easily mounted. It is simple and reliable with mechanical and electrical interlocking. It adopts plateau design and it has good insulation level.
No.NameUnitTechnical parameter
1.        Rated voltageKV40.5
2.        Rated currentA1250,1600,2000,2500
3.        Rated short circuit breaking current    KA  2531.5
4.        Peak withstand current6380
5.        Short time current (4s)2531.5
6.        Rated short circuit making current6380
7.        Rated short circuit breaking timesTimes3030
8.        Operating sequence O-0.3s-CO-180s-CO
9.        Lightning impulse withstand voltage  KV185
10.     Rated short time power frequency withstand voltage(1min)95
11.     Closing time  Ms<=90
12.     Opening time<=70
13.     Energy stored timeS<=15
14.     Mechanical enduranceTimes10000
15.     Rated current breaking times10000
16.     Energy stored electric machine rated frequencyW275
17.     Energy stored electric machine rated voltage  VDC110   AC/DC220
18.     Making electromagnet rated voltageDC110   DC220
19.     Making electromagnet rated resistance¦¸57.7   247
20.     Making electromagnet rated current  A  DC1.91   DC0.89
21.     Over current release current5
22.     Auxiliary switch rated currentAC10   DC5
23Contact moving distance  Mm25(+ or -)2
24Contact travel8(+ or -)2
25Closing speedM/s1.0 to 1.8
26Opening speedM/s1.0 to 1.8
27Contact closing bouncing timeMs<=2
28Phase to phase central distanceMm350,400,460
29Asynchronization of making contactMs<=2
30Each phase main circuit resistance¦Ì¦¸<=40
31Wear thickness allowance of moving contact and static contactMm<=3

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Circuit Breaker; Vacuum Circuit Breaker (ZN12)

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Circuit Breaker; Vacuum Circuit Breaker (ZN12)

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