Electrical 12kv High Voltage Indoor Vacuum Circuit Breaker

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Model NO.: ZN63(VS1)-12
• Speed: Normal Type Circuit Breaker
• 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: IEC
• Transport Package: Wooden Carton
• Specification: ZN63(VS1)-12
• Trademark: JECSANY
• Origin: China
• HS Code: 8504220000
• Production Capacity: 50000PCS/Years

Product Description

   ZN63(VS1) indoor high-voltage alteratingcurrent vacuum circuit breaker has a frequency of 50Hz and a rated voltage of 12kV. It applies to the ecrical equipment control and protection in industial and mining enterprises, power plants and substations, priculanty to the places needing frequent operation. It can be fixed in a switch cabinet or nstalld on a handcart.

      With stable performance and convenient intallation, it is the best choice for the control and protection of hig-voltage power transmission and distribution systems.

 

 

 

 Technical Parameter  

1.1 Technical parameters

Item		Unit	Reference value
Rated voltage		kV	12
Rated insulation level	Power frequency voltage (when losing a circuit)	kV	Breaker 42
	Impulse withstand voltage (when losing a circuit)	kV	Breaker 75
Rated frequency		Hz	50/60
Rated current		A	630/1250/1600/2000/2500/3150/4000
Rated short-circuit breaking current		KA	20,25,31.5,40
Rated short-circuit making current (peak value)		KA	50,63,80,100
Rated short-time withstand current		KA	20,25,31.5,40
Rated withstand current (peak value)		KA	50,63,80,100
Required operation sequence			O-0.3s-CO-180s-CO
Rated short-circuit duration		s	4
Times of making-breaking with the rated short-circuit current		Times	30
Mechanical life		Times	10000
Weight		kg	110

1.2 Mechanical parameters

Item	Unit	Reference value
Gap of contacts	mm	11±1
Contact overtravel	mm	3.5±0.5
Average making speed	m/s	0.6±0.2
Average breaking speed	m/s	1.1±0.2
Bounce time in contact making	ms	≤2
Non-synchronous making/breaking of contact	ms	≤2 ≤3(40kA)
Resistance of the circuit of each phase	μΩ	≤80
Permissible total wear thickness of the moving/fixed contact	mm	3

 

Product standards	1.IEC 62271-100 High-voltage alternating-current circuit-breakers 2.GB/T 11022-2011 Common specifications for high-voltage switchgear and controlgear standards 3.GB 1984 High-voltage alternating-current circuit-breakers 4.GB311.1 Insulation co-ordination for high voltage transmission and distribution equipment
Ambient condition	1. Altitude:≤1000m; 2. Ambient temperature: - 40ºC-+40ºC (below 35C within 24 hours) 3.Relative humidity: ≤95% (daily average) or≤90% (monthly average)

Q: Can we get a sample for reference?
A: Yes, as long as the goods are conventional type, and you will be charged sample cost plus related shipping cost. Once you place an order to us, we can return or deduct the sample cost to you.

Q: How to solve the quality problems after sales?
A: Take photos of the quality problems and send to us for our checking and confirming, we will make a satisfied solution for you within 3 days.

Q: What is the lead time?
A: The lead time depends on the quantities ordered, generally within 25-35days upon the receipt of advance payment.

Q: What is your terms of payment ? 
A: We accept West Union, T/T, irrevocable L/C at sight. Prefer T/T 30% deposit before production, the balance against copy of B/L.

Q: Can you print our brand on the product?
A: Yes, of course, we also do OEM to print client's brand on the product.