Indoor 1250A Vacuum Circuit Breaker

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Energy-storage Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Insert
• Structure: Vcb
• Model NO.: VS1-12
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB, Do as Your Request
• Certification: ISO9001-2000, CE
• Rated Voltage: 24kv
• Rated Frequency: 50/60Hz
• Rated Current: 630A/1250A/1600A/2000A/2500A
• Phase Distance: 210mm/275mm
• Transport Package: Wooden Case
• Specification: steel, expoxy resin
• Trademark: LIYOND
• Origin: China
• Production Capacity: 3000/Month

Product Description

12kv Types vcb High Voltage Power Distribution Equipment Indoor VS1 Vacuum circuit breaker

12kv Types vcb High Voltage Power Distribution Equipment Indoor VS1 Vacuum circuit breaker

Summary

The ZN63A(VS1)-12 Model indoor high voltage 12kV 3 Pole High Voltage Vacuum Circuit Breaker is designed for power systems with a rated voltage of 12kV. It serves as a protective and control unit for power grid and industrial equipment, compatible with switchgear panels such as KYN28(GZS1), XGN, and GG-1A. Related products include isolated handcart, fuse handcart, and voltage transformer handcart.

Structural Features:

1. Integrated design for operating mechanism and VCB body


2. Vertical insulation house for impact resistance


3. Available in fixed type and withdrawable type installations

Applying Ambient Conditions:

• Ambient temperature: -10ºC to +40ºC


• Relative humidity: Average daily humidity not exceeding 95%, monthly not exceeding 90%


• Earthquake intensity: Not exceeding 8 degrees


• Saturated vapor pressure: Average daily not exceeding 2.2kPa, monthly not exceeding 1.8kPa


• Height above sea level: ≤1000 m (unless specified otherwise)


• Installation in areas free from fire, explosion, filth, chemical erosion, and violent vibration

Specification

Manufacturer: Yueqing Liyond Electric Co., Ltd.

No.	Name	Unit	Data
1	Rated voltage	kV	12
2	Rated current	A	630		1000 1250			1600 2000 2500 3150
3	Rated short circuit breaking current	kA	20	25	20	25	31.5	31.5	40
4	Rated peak withstand current	kA	50	63	50	63	80	80	100
5	Rated short time withstand current	kA	20	25	20	25	31.5	31.5	40
6	Rated short circuit making current	kA	50	63	50	63	80	80	100
7	Switching operations of short circuit current	times	50
8	Rated operating sequence		O-0.3s-CO-180s-CO-180s-CO(40KA)
9	Mechanical endurance	times	10000
10	Rated breaking operations of the rated current	times	20000
11	Rated lighting impulse withstand voltage(full wave)	kV	75
12	1 min. rated power frequency withstand voltage	kV	42
13	Contact stroke	mm	9±1
14	Over-travel of contacts	mm	3.5±0.5
15	Closing speed	m/s	0.4∼0.8
16	Opening speed	m/s	0.9∼1.2
17	Contact bouncing duration at closing operation	ms	≤2
18	Simultaneity of three phase closing operation	ms	≤2
19	Closing time	ms	30∼70
20	Opening time	m/s	20∼50
21	Distance between phases	mm	150, 210, 275
22	D.C component		50%

Yueqing Liyond Electric Co., Ltd. presents the Indoor 1250A Vacuum Circuit Breaker, ideal for rated currents up to 4000A with cold wind. Explore the Vs1-12 12kv Circuit Breaker for efficient performance.

Product Description

Welcome to Yueqing Liyond Electric Co., Ltd.

Product: Electrical Components

FAQ:

• Prices: Feel free to inquire for pricing information.


• Sample Order: Test and check quality with sample orders.


• Logo Printing: OEM services available with brand authorization.


• Product Customization: Provide specific details for customization.


• Lead Time: Varies based on quantities ordered, typically 7-20 days.


• Trade Terms: Accept EXW, FOB, CIF, FCA, etc.


• Payment Methods: Accept T/T, Western Union, Paypal, irrevocable L/C at sight, etc.


• Quality Inspection: Products inspected at each production step and before shipping.


• After Sales: Quality issues resolved within 3 days upon receiving photos.