High Voltage Circuit Breakers Center Solid Seal Vacuum Contact Switch

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Model NO.: VYC
• Arc-extinguishing Medium: Vacuum
• Installation: Open Frame
• Structure: ACB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker
• Certification: ISO9001-2000, CE, CB
• Operating Voltage: AC/DC220V;AC/DC110V
• Phase Spacing: P150;P210
• Installations: Ht (Handcart Type)
• Three-Phase Frequency: AC 50 Hz
• Rated Voltage: 3.6-12 Kv
• Standard: IEC60470:1999
• Electrical Life: 250000 Times
• Mechanical Life: 300000 Times
• Transport Package: Standard Packaging
• Specification: VYC
• Trademark: CNC/OEM
• Origin: Zhejiang, China
• HS Code: 85362000
• Production Capacity: 80000units/Years

Product Description

Product Description

 

VYC-12  Center Solid Seal Vacuum Contact Switch-Fuse Combination


 VYC Type Center-mounted Vacuum Contactor-Fuse Combination Electrical Appliance is suitable for indoor switchgear equipment with a rated voltage of 3.6-12 kV and a three-phase AC frequency of 50 Hz.
This  product  is  designed  for  places  that  require  frequent  circuit  breaking  and  closing  operations.  It  can  meet  the  user's requirements for frequent operations and has advantages such as long lifespan, stable operation, and reasonable functionality.
It is suitable for centermounted switchgear cabinets with widths of 650mm and 800mm. It is applied in various industrial and mining enterprises such as metallurgy, petrochemicals, and mining. It is used to control and protect high-voltage motors, variable frequency drives, induction furnaces, and other load switching equipment.
Standard: IEC60470:1999.

Operating conditions
1. The ambient temperature is higher than +40ºC and not lower than -10ºC (storage and transportation are allowed at -30ºC).
2. The altitude does not exceed 1500m.
3. Relative humidity: the daily average is not greater than 95%, the monthly average is not greater than 90%, the daily average saturated vapor pressure is not greater than 2.2*10-³Mpa, and the monthly average is not greater than 1.8*10-³Mpa.
4. The earthquake intensity does not exceed 8 degrees.
5. Places without risk of fire, explosion, serious pollution, chemical corrosion and severe vibration.


Technical data
Main specifictions

Number	Item		Unit	Value
1	Rated voltage		KV	3.6	7.2	12
2	Rated insulation level	Rated lightning impulse withstand voltage peak	KV	46	60	75
		1min	KV	20	32	42
3	Rated current		A	400	315	160
4	Short-time withstand current		KA	4
5	Short-term withstand current duration		s	4
6	Rated peak withstand current		KA	10
7	Rated short-circuit breaking current (fuse)		KA	50
8	Rated transfer current		A	3200
9	Rated switching current		A	3200
10	Rated duty system			Continuous duty
11	Use category			AC3,AC4
12	Operating frequency		Times/h	300
13	Electrical life		Times	250000
14	Mechanical life		Times	300000

Mechanical characteristic parameters after assembly adjustment of combined electrical appliances

Number	Item	Unit	Value
1	Contact spacing	mm	6±1
2	Contact stroke	mm	2.5±0.5
3	Opening time (rated voltage)	ms	≤100
4	Closing time (rated voltage)	ms	≤100
5	Contact bounce time on closing	ms	≤3
6	Different phases of three-phase closing	ms	≤2
7	Allowable cumulative thickness of wear for moving and static contacts.	mm	2.5
8	Main circuit resistance	µΩ	≤300

Opening and closing coil parameters

Number	Item	Unit	Value
1	Control circuit rated operating voltage	V	DAC/DC110	AC/DC220
2	Closing current	A	20	10
3	Holding current (electrical holding)	A	0.2	0.1

Structural features
1. Simplified transmission links,reduced energy consumption, and improved mechanical reliability.
2. The  pole  is  formed through APG  (Automatic  Pressure  Gelation)  process, providing waterproof,  dustproof,  and  dirt-resistant  properties,  enhancing operational reliability.
3. Electromagnetic operating mechanism with reliable closing operation and low power consumption during long-term operation.
4. Convenient assembly and maintenance.

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