Zn63

Basic Info.

Model NO.	ZN63 VS1-12KV
Poles Number	3
Type	Circuit Breaker
Function	Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
Certification	ISO9001-2000, CCC
Transport Package	Export Standard Wooden Case
Specification	12kv
Trademark	Witry OEM
Origin	Shandong China
HS Code	8535210000
Production Capacity	50000PCS/Years

Product Description

ZN63 (VS1) type indoor high voltage vacuum circuit breakerProduct overview
VS1 (ZN63A) type indoor high voltage vacuum circuit breaker (hereinafter referred to as circuit breaker) is the indoor switchgear used for 12kV power system, power grid equipment as well as protection and control unit of the power equipment in industrial and mining enterprises. Due to its special merits, vacuum circuit breaker is in particular suitable for frequent operation at rated working current or for multiple times of short circuit current breaking.
It is of operating mechanism and circuit breaker integrated design. It can serve as the fixed installation unit or be equipped with the special feed mechanism to form the withdrawable unit.
Service condition
a) Ambient temperature: maximum +40ºC; minimum -15ºC
b) Ambient humidity: Daily average RH ≤95%
Monthly average RH ≤90%
Daily average steam pressure ≤2.2×10-3MPa:
Monthly average steam pressure ≤1.8×10-3MPa
c) Altitude: ≤2000m
d) Seismic intensity: no more than 8
e) In places without water dripping, inflammable and explosive hazards, chemical corrosive gases or violent vibration.
Technical specification

No.	Items	Unit	Parameters
1	Rated voltage	kV	12
2	(1min)Rated short duration power frequency withstand voltage (1min)		42
3	Rated lightning impulse withstand voltage(peak)		75
4	Rated frequency	Hz	50
5	Rated current	A	630 1250	1250 1600 2000 2500 3150	1250 1600 2000 2500 3150
6	Rated short circuit breaking current	kA	25	31.5	40
7	Rated short-time withstand current		25	31.5	40
8	Rated short-circuit duration	s	4
9	Rated peak withstand current	kA	63	80	100
10	Rated short circuit closing current		63	80	100
11	[1min]Secondary circuit power frequency withstand voltage (1min)	V	2000
12	Rated single/back to back capacitor bank breaking current	A	630/400 (800/400 for 40kA)
13	Rated capacitor bank inrush making current	kA	12.5 (frequency of no more than 1000Hz)

About Our Company Shandong Witry Electric Co., Ltd. is a professional electrical equipment enterprise located in Shandong province east of China, integrating R&D, design, manufacture, supply and export. The main products are high-voltage transmission and transformation equipment, high and low-voltage switchgear, cable tray. the products are widely used in power, metallurgy, chemical industry, machinery, medicine, mining, textile and other industries.

Mission & Vision Thinking and doing more, make customers do less. Being more efficient, make customers more beneficial. Represent with quality, make reputation with service. Sincerely treat guests, make friends in business. We are committed to producing only the highest quality products that meet or exceed our customers' expectations and requirements. Our goal is to achieve 100% customer satisfaction by delivering the best products and services on time and defect free. We will achieve this individually and corporately through tested and proven processes and controls in our Quality System, and with a constant focus and effort on continuous improvement.

Our Employees Our employees consists of experienced, well-motivated and dedicated team of engineers, technicians, sales executives and management staff. Our company has a strong technical team, all-weather provide convenient fast pre-sale and after-sale service and detailed engineering technical solutions.

Our Equipment and Management Our factory covers an area of 100,000 square meters and has 18 workshops. The main equipment includes laser cutting machine, Shearing Machine, automatic ladder edge production line, high-voltage electrostatic powder spraying production line, etc. It has more than 100 sets of imported CNC processing equipment and precision testing equipment. Each process has strict quality control and processing technology, and the products fully comply with national standards and IEC (International Electrotechnical Commission)standards. The company has successfully obtained ISO9001:2008 quality management system, ISO14001:2004 environmental management system and OHSAS18001:2007 occupational health and safety management system certification.