ZN12-40.5 (3AF) High Voltage Vacuum Circuit Breaker with ISO9001-2000

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Speed: Normal Type Circuit Breaker
• Model NO.: ZN12-40.5
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: ACB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
• Certification: VDE, ISO9001-2000, CE, CB, CCC
• Rated Voltage: 40.5kv
• Rated Current: 630/1000/1250/1600/2000
• Rated Frequency: 50/60Hz
• Transport Package: Non-Solid Wooden Case for Export Shipment
• Specification: IEC: M2-E2-C2
• Trademark: Longxiang Electric
• Origin: Baoji, Shaanxi China
• HS Code: 85389000
• Production Capacity: 16000sets/Year

Product Description

ZN12-40.5 Series of Indoor HV Vacuum Circuit Breaker

General Description

ZN12-12 series of indoor high voltage vacuum circuit breaker is with rated voltage of 40.5kV, three-phase A.C.50(60) Hz indoor high voltage 
switch equipment.The structure of this kind of circuit breaker is simple but with strong breaking capability; it is suitable for application in the
mining industry, substations and power transmission and distribution systems for controlling and protecting the switch. Especially suitable for
he industry which requires frequently operations like metallurgy fields, electric arc steel plant to control and protect the equipment.

This kind of vacuum circuit breaker can be assembled with truck which can be suitable for many kinds of switchgear such as JYN1, GBC etc


Structural characteristics:

1.The operating mechanism is introduced the technique of operating mechanism from Siemens 3AF vacuum circuit breaker, the operating
   mechanism is integrated with vacuum circuit breaker, with characteristics of short transmission routes, less chains and high transmission
   efficiency.
2.This operating mechanism adopts spring type, it can be operated by AC or DC, also can be operated by manual.


Applying ambient conditions

1.Ambient temperature:-15~+40ºC.
2.The height above sea level:≤1000m(besides the special requirements).
3.Relative humidity:the average humidity of a day should be no more than 95%; the average humidity of a month should be no more than 90%.
4.Saturated vapor pressure:the average pressure of a day should be no more than 2.2kPa; the average pressure of a month should be no more than 1.8kPa.
5.Earthquake intensity:not exceed 8 degrees.
6.It should be installed in the places without fire, explosion, serious filth, chemical erosion and violent vibration.


Main Technical Specification

S.N	Name	Unit	Data
1	Rated voltage	kV	40.5
2	Rated frequency	Hz	50/60
3	Rated current	A	630/1000/1250/1600/2000
4	Rated short circuit breaking current	kA	25/31.5
5	Rated peak withstand current	kA	63/80
6	Rated short-circuit duration	S	4
7	Electrical endurance class	Cycle	Class E2(20cycles)
8	Mechanical endurance	Cycle	(classM1)10000

Our Factory 






Welcome for enquiry and factory visit!