High-Voltage Vacuum Circuit Breaker for Indoor Complete Power Distribution Equipment

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Energy-storage Type
• Model NO.: VS1-12
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed or Handcart Type
• Structure: Vcb
• Poles Number: 3
• Type: Indoor Vacuum Circuit Breaker
• Function: Isolation,Protection,Automatic Reclosing
• Certification: ISO9001-2000
• Rated Voltage: 12kv
• Rated Current: 630/1250/1600A
• Mechanical Life: 30000 Times
• Altitude: 1000m
• Transport Package: Wooden Box Packing
• Specification: Custom-made
• Trademark: ZGHQDL
• Origin: China
• HS Code: 8535210000
• Production Capacity: 10000/M

Product Description

ZN63-12 Indoor High Voltage Vacuum Circuit Breaker (Modular) is our latest medium-voltage vacuumcircuit breaker product, which is

suitable for air-insulated indoor switching systems. The circuit breakeradopts the new solid-sealed pole technology with a modular

mechanism. At the same time, the circuitbreaker has perfect mechanical and electrical interlocking functions, and can be widely used

in energy.industry, construction, infrastructure and other fields.

The circuit breaker can perform frequent operation within the operating current range or open the shortcircuit current multiple times;

The mechanical life can be up to 30,000 times, and the number offullcapacity short-circuit current breaks can reach 50 times.

Circuit breakers are suitable for reclosing operations and offer high operational reliability and servicelife.

The circuit breaker can be installed in the switchgear ither as fixed or withdrawable or mounted on aframe.

No.	Item		Unit	Data
1	Rated voltage		KV	12
2	Max.working voltage		KV	12
3	Rated current		A	630 1250	630 1250 1600  2000 2500  3150		1250  1600 2000 2500 3150  4000
4	Rated short circuit breaking current (Rated thermal stability current (RMS))		KA	20/25	31.5		40
5	Rated short-circuit current (peak)		KA	50/63	80		100
6	Rated dynamic stability current (peak)		KA	50/63	80		100
7	4S Rated withstand current		KA	20/25	31.5		40
8	Rated insulation level	Power frequency withstand voltage (rated breaking before and after)/1 min power frequency withstand voltage	KV	To earth 42 (Between open contacts)
		Impulse withstand voltage(rated breaking before and after)/Lightning impulse withstand voltage (peak)		To earth 75 (Between open contacts
9	Rated thermal stability time		S	4
10	Rated operating sequence			O-0.3S-CO-180S-CO
11	Mechanical life		Times	20000
12	Rated short circuit current breaking time		Times	50
13	Rated operating mechanism closing voltage (DC)		V	AC,DC     110,220
14	Actuator voltage of the floodgate (DC		V	AC,DC     110,220
15	Contact stroke		mm	11±1
16	Overtravel(the length of contact spring compression)		mm	3.5±0.5
17	Three-phase points,closing phase asynchronous		Ms	≤2
18	Contact closing bounce time		ms	≤2
19	Average opening speed		m/s	0.9~1.2
	Average closing speed		m/s	0.5~0.8
20	Opening time	Under max.operating voltage	S	≤0.05
21		Under min.operating voltage		≤0.08
22	Closing time		S	0.1
23	The main circuit resistance of each phase		μΩ	630≤50		1250≤45
24	Allowed comision thickness for fixed and movable contacts		mm	3