Vacuum Circuit Breaker 12kv Circuit Breaker Switchgear Circuit Breaker

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: vs1-12
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: Vcb
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
• Certification: ISO9001-2000, CE
• Transport Package: Wooden Case
• Specification: 12kv 1250A
• Trademark: Q&S
• Origin: Zhejiang, China
• HS Code: 8536200000
• Production Capacity: 30000 PCS / Year

Product Description

PRODUCT DETAILS:

12KV Vacuum Circuit Breakers (VS1)
VS1 series indoor high voltage AC vacuum circuit breakers are indoor switching equipment with rated voltage of 12kV. It can be used for the control and protection of electrical facilities in industry and mining, buildings and substations, as well as in places with frequent operation. The products have high reliability and stability.

The vacuum circuit breaker is equipped with low power consumption modular spring operating mechanism to meet the requirements of electric and manual operation. After the mechanism stored energy, the closing operation is completed after receiving the closing signal or pressing the closing button by hand; After the closing action is completed, after receiving the opening signal or press the opening button by hand to complete the opening operation.

 Ambient air temperature range: -5° C to 40 ° C, in addition, average temperature measured in 24 hours does not exceed 35° C.
 Altitude <=1000m.
 Daily average relative humidity should not exceed 95%. Daily average water vapor pressure should not exceed 2.2kpa;
 Monthly average relative humidity should not exceed 90%. Monthly average vapor pressure should not exceed 1.8kPa.
 Keep away from fire, explosion, serious pollution, chemical corrosion and violent vibration.

Vacuum interrupter
 Vacuum interrupter adopts the world's advanced manufacturing technology of miniaturized and high-performance interrupter;
 Contact is made of copper chromium alloy, with high vacuum degree;
 Cup style axial magnetic field (AMF) arc extinguishing, providing stable breaking performance;
 A single circuit breaker completes 274 times of rated short-circuit breaking E2;

Modular Mechanism
 Modular mechanism design, highly standardized structure;
 Mechanism is easy to assemble / disassemble and easy to maintain;
 High reliability with less number of parts
 Integrated charging handle, makes operation convenient and easy

Pot-type Pole
 Environment friendly insulating material, PA66 provides light weight, high dielectric performance;
 Recyclable and easy disposal after product life cycle;
 Cost effective and reliable;

Vacuum Circuit Breaker
 Fully meets the requirements of IEC and GB standards;
 Complete interlocking, prevent misoperation, and provide safety in operation;
 Modular design, shortened delivery time;
 Small opening rebound and excellent performance;

Model explanation
VS1 - Product code
12 - 12KV
T - Spring Mechanism; M - Permanent Magnetic Mechanism
630 - 630A
25 - 25kA
W - Withdrawable type; F - Fixed type
150 - 150mm pole distance; 210 - 210mm pole distance; 1000 - 1000mm/1m pole distance
P - Potted type; E - Encapsulted type

Spring Mechanism

Model	Pole Distance  (mm)	Rated Current  (A)	Breaking Short-Circuit  Capacity (kA)	Installation  method	Note	Mechanism
VS1-12/T630-25KA-W150P	150	630	25	Withdrawable type	Potted type	Spring
VS1-12/T1250-25KA-W150P	150	1250	25	Withdrawable type	Potted type	Spring
VS1-12/T1250-31.5KA-W150P	150	1250	31.5	Withdrawable type	Potted type	Spring
VS1-12/T630-25KA-F150P	150	630	25	Fixed type	Potted type	Spring
VS1-12/T1250-25KA-F150P	150	1250	25	Fixed type	Potted type	Spring
VS1-12/T1250-31.5KA-F150P	150	1250	31.5	Fixed type	Potted type	Spring
VS1-12/T630-25KA-W150E	150	630	25	Withdrawable type	Encapsulated type	Spring
VS1-12/T1250-25KA-W150E	150	1250	25	Withdrawable type	Encapsulated type	Spring
VS1-12/T1250-31.5KA-W150E	150	1250	31.5	Withdrawable type	Encapsulated type	Spring
VS1-12/T1600-31.5KA-W150E	150	1600	31.5	Withdrawable type	Encapsulated type	Spring
VS1-12/T630-25KA-F150E	150	630	25	Fixed type	Encapsulated type	Spring
VS1-12/T1250-25KA-F150E	150	1250	25	Fixed type	Encapsulated type	Spring
VS1-12/T1250-31.5KA-F150E	150	1250	31.5	Fixed type	Encapsulated type	Spring
VS1-12/T1600-31.5KA-F150E	150	1600	31.5	Fixed type	Encapsulated type	Spring
VS1-12/T630-20KA-W210P	210	630	20	Withdrawable type	Potted type	Spring
VS1-12/T630-25KA-W210P	210	630	25	Withdrawable type	Potted type	Spring
VS1-12/T1250-25KA-W210P	210	1250	25	Withdrawable type	Potted type	Spring
VS1-12/T1250-31.5KA-W210P	210	1250	31.5	Withdrawable type	Potted type	Spring
VS1-12/T1600-31.5-W210P	210	1600	31.5	Withdrawable type	Potted type	Spring
VS1-12/T2000-31.5-W1000P	1000	2000	31.5	Withdrawable type	Potted type	Spring
VS1-12/T2000-40-W1000P	1000	2000	40	Withdrawable type	Potted type	Spring
VS1-12/T2500-31.5-W1000P	1000	2500	31.5	Withdrawable type	Potted type	Spring
VS1-12/T3150-31.5-W1000P	1000	3150	31.5	Withdrawable type	Potted type	Spring
VS1-12/T3150-40-W1000P	1000	3150	40	Withdrawable type	Potted type	Spring
VS1-12/T4000-31.5-W1000P	1000	4000	31.5	Withdrawable type	Potted type	Spring
VS1-12/T630-20KA-F210P	210	630	20	Fixed type	Potted type	Spring
VS1-12/T630-25KA-F210P	210	630	25	Fixed type	Potted type	Spring
VS1-12/T1250-25-F210P	210	1250	25	Fixed type	Potted type	Spring
VS1-12/T1250-31.5-F210P	210	1250	31.5	Fixed type	Potted type	Spring
VS1-12/T1600-31.5-F210P	210	1600	31.5	Fixed type	Potted type	Spring
VS1-12/T2000-31.5-F1000P	1000	2000	31.5	Fixed type	Potted type	Spring
VS1-12/T2000-40-F1000P	1000	2000	40	Fixed type	Potted type	Spring
VS1-12/T2500-31.5-F1000P	1000	2500	31.5	Fixed type	Potted type	Spring
VS1-12/T3150-31.5KA-F1000P	1000	3150	31.5	Fixed type	Potted type	Spring
VS1-12/T3150-40KA-F1000P	1000	3150	40	Fixed type	Potted type	Spring
VS1-12/T630-20KA-W210E	210	630	20	Withdrawable type	Encapsulated type	Spring
VS1-12/T630-25KA-W210E	210	630	25	Withdrawable type	Encapsulated type	Spring
VS1-12/T1250-25KA-W210E	210	1250	25	Withdrawable type	Encapsulated type	Spring
VS1-12/T1250-31.5KA-W210E	210	1250	31.5	Withdrawable type	Encapsulated type	Spring
VS1-12/T1600-31.5-W210E	210	1600	31.5	Withdrawable type	Encapsulated type	Spring
VS1-12/T1600-31.5-W275E	275	1600	31.5	Withdrawable type	Encapsulated type	Spring
VS1-12/T2000-31.5-W1000E	1000	2000	31.5	Withdrawable type	Encapsulated type	Spring
VS1-12/T2000-40-W1000E	1000	2000	40	Withdrawable type	Encapsulated type	Spring
VS1-12/T2500-31.5-W1000E	1000	2500	31.5	Withdrawable type	Encapsulated type	Spring
VS1-12/T3150-31.5-W1000E	1000	3150	31.5	Withdrawable type	Encapsulated type	Spring
VS1-12/T3150-40-W1000E	1000	3150	40	Withdrawable type	Encapsulated type	Spring
VS1-12/T4000-31.5-W1000E	1000	4000	31.5	Withdrawable type	Encapsulated type	Spring
VS1-12/T4000-40-W1000E	1000	4000	40	Withdrawable type	Encapsulated type	Spring
VS1-12/T630-25KA-F210E	210	630	25	Fixed type	Encapsulated type	Spring
VS1-12/T1250-25-F210E	210	1250	25	Fixed type	Encapsulated type	Spring
VS1-12/T1250-31.5-F210E	210	1250	31.5	Fixed type	Encapsulated type	Spring
VS1-12/T1600-31.5-F210E	210	1600	31.5	Fixed type	Encapsulated type	Spring
VS1-12/T1600-31.5-F275E	275	1600	31.5	Fixed type	Encapsulated type	Spring
VS1-12/T2000-31.5-F1000E	1000	2000	31.5	Fixed type	Encapsulated type	Spring
VS1-12/T2000-40-F1000E	1000	2000	40	Fixed type	Encapsulated type	Spring
VS1-12/T2500-31.5-F1000E	1000	2500	31.5	Fixed type	Encapsulated type	Spring
VS1-12/T3150-31.5KA-F1000E	1000	3150	31.5	Fixed type	Encapsulated type	Spring
VS1-12/T3150-40KA-F1000E	1000	3150	40	Fixed type	Encapsulated type	Spring
VS1-12/T4000A-31.5KA-F1000E	1000	4000	31.5	Fixed type	Encapsulated type	Spring
VS1-12/T4000A-40KA-F1000E	1000	4000	40	Fixed type	Encapsulated type	Spring

Main Technical Specification

Item	Unit	Data
Rated voltage	kV	12
Rated frequency	Hz	50
Rated insulation level 1 min power frequency withstand voltage pole to earth	kV	42
Rated insulation level 1 min power frequency withstand voltage phase	kV	48
Rated insulation level lightning impulse withstand voltage pole to earth	kV	75
Rated insulation level lightning impulse withstand voltage phase	kV	85
Power frequency withstand voltage of secondary circuit	V	2000
Rated current	A	630,1250, 1600, 2000, 2500, 3150, 4000, 5000
Rated short-circuit breaking current	kA	20, 25, 31.5, 40, 50
Rated short-time withstand current	kA	20, 25, 31.5, 40, 50
Rated short circuit duration	s	4
Rated peak withstand current	kA	50, 63, 80, 100, 125
Rated short-circuit making current	kA	50, 63, 80, 100, 125
Rated short circuit current breaking times (class E2)	times	30
Rated single/back to back capacitor bank breaking current	A	630/400,  800/400
Clearance between open contacts	mm	11±1
Contact stroke	mm	3~4
Allowable wear thickness of contact	mm	3
Average opening speed	m/s	0.9~1.4
Average closing speed	m/s	0.5~1.0
Contact closing bounce time	ms	≤2
Different phases of contact closing and opening	ms	≤2
Rebound amplitude of opening contact	mm	≤2
Opening time (rated voltage)	ms	20~50
Closing time (rated voltage)	ms	30~70
Mechanical life (M2)	ms	10,000(20,000)
Rated operating voltage	V	AC110/220  DC110/220
Rated operation sequence		O-0-CO-180s-CO