vacuum_circuit_breakers_vcb_VS1(ZN63) 12kv /24kv 630a/1250a handart type

Vacuum circuit breakers vcb VS1(ZN63) 12kv /24kv 630a/1250a handart type

Product overview

VS1 (ZN63A) - 12 indoor high voltage vacuum circuit breaker, three-phase ac 50 hz, rated voltage of 12 kv power system of indoor switchgear, as power equipment, industrial and mining enterprises, power protection and control unit. Apply to working in the rated electric demand flow frequent operation, or more open circuit short circuit current.
The circuit breaker operating mechanism and circuit breaker unibody design of ontology. Either as a fixed installation unit, also can equipped with feed mechanism, form a handcart unit.

Using the environment conditions

Ambient air humidity: cap + 40 ° ℃, lower limit - 15 ° ℃
* height: < 1000 m (if need higher elevation, the rated insulation level increase)
Amplitude: the earthquake intensity is not more than 8 degrees
Air relative humidity, average no greater than 95%, on average no greater than 90%
No fire and explosion danger, serious pollution, chemical corrosion and the site of violent vibration

Specification

Item	Description		Unit	Data
1	Rated voltage		KV	12
2	Max. voltage		KV	12
3	Rated current		A	630/1250/2000A4000
4	Rated short circuit breaking current		KA	20/25/31.5/40
5	Rated short circuit making current		KA	50/63/80/100
6	Rated peak withstand current		KA	50/63/80/100
7	4S Rated withstand current		KA	20/25/31.5/40
8	Rated insulation level	Power frequency voltage(when losing a circuit)	KV	Dreaker 42
8	Rated insulation level	Impulse withstand voltage(when losing a circuit)	KV	Dreaker 75
9	Rated operating sequence			OC-0.3s-CO-180S-CO
10	Mechanical life		Times	20000
11	Rated short circuit current breaking time		Times	50
12	Rated close brake voltage of operating machnie		V	110,220
13	Rated break brake voltage of operating machnie		V	110,220
14	Contact stroke		mm	11±1
15	Exceed range(the compress length of contact sping)		mm	3.5±0.5
16	Different period of three-phase break and close break		ms	≤2
17	The jump time of contact close break		ms	≤2
18	Average break speed		m/s	0.9~1.2
19	Average closing speed		m/s	0.5~0.8
20	opening time	Ubder max.operating voltage	S	≤0.05
20	opening time	Under min.operating voltage	S	≤0.08
21	Closing time		s	0.1
22	Resistance of each phase main loop		μΩ	≤40
23	Contacts limit ersion		mm	3

Detailed Photos

Installation dimensions

Packing details

by strong wood box

OEM can be customized as required on the box.

Buy Guide

Determine the rated voltage

2. Determine breaking capacity

3. Determine the rated current

4. Determine the installation method (A: handcart type B: fixed type)

5. Determine installation size

About Us

Hebei Liebang Electric Technology Co. LTD was established in 2000, located in Hebei, China, covering an area of 20,000 square meters, is a group integrating R&D, manufacturing, sales and service. Our products cover many fields such as transformers, switch cabinets, electricity meters, wires and cables, and are widely used in construction, energy, communication and other industries.The company has its own technology research and development team. All products can be individually designed according to structural, mechanical and electrical principles. With advanced production equipment, testing equipment, production line and computer network control system, it is a leading domestic power equipment manufacturer in terms of product production, component selection and assembly. It has also passed ISO9001, ISO14001, ISO45001, CQC, test report and other quality system certifications, and the credit rating AAA certificate.We sincerely invite you to visit our factory for guidance and negotiation, and to explore potential cooperation opportunities.