High quality MOV Blocks D40×20 metal oxide varistor transient voltage suppression Metal Oxide
Varistor MOV 10KA
Metal oxide varistor also known as Zinc oxide varistor is installed in the surge
arrester and has excellent nonlinear volt-ampere characteristics.
Under normal operating voltage, it exhibits a large resistance and
its leakage current is only in the microampere range. When
overvoltage occurs, it immediately switches to low resistance,
releases energy, and limits the overvoltage range. After the
overvoltage disappears, it immediately restores high resistance to
ensure the safe operation of the power system.
Features
- Excellent overvoltage withstand capability
- Minimum leakage current under continuous operating voltage
- Stable aging performance
Application
- Lightning arrester (MOA): Zinc oxide varistors are the core
component of lightning arresters and are used to protect power
systems, electronic circuits, and microelectronic circuits from
overvoltage. It can effectively absorb surge current and is known
as a revolution in over-voltage protectors.
Technical Datasheet -----MOV Blocks for Lightning
Arrester Classification DH (10KA)
Specification | Diameter | Thickness | D.C. reference voltage (U1mA) | Residual voltage (8/20μs) at 10kA | Current impulse withstand capability | Rated voltage | Maximum energy absorption capacity |
4/10μs | 2ms |
mm | mm | kV | kA | A | kV | kJ/kVr |
MOV37×20 | 37±0.5 | 20±0.5 | 4.0 ~ 4.8 | 7.3 ~ 8.7 | 100 | 350 | 3 | 3.2 |
MOV37×30 | 37±0.5 | 30±0.5 | 6.2 ~ 7.0 | 11.3 ~ 12.8 | 100 | 350 | 4.5 | 3.2 |
MOV40×20 | 40±0.5 | 20±0.5 | 4.0 ~ 4.8 | 7.2 ~ 8.7 | 100 | 400 | 3 | 3.3 |
MOV40×40 | 40±0.5 | 40±0.5 | 8.2 ~ 9.4 | 14.9 ~ 17.1 | 100 | 400 | 6 | 3.3 |
MOV42×20 | 42±0.5 | 20±0.5 | 4.0 ~ 4.8 | 7.2 ~ 8.7 | 100 | 500 | 3 | 3.5 |
MOV42×30 | 42±0.5 | 30±0.5 | 6.2 ~ 7.0 | 11.2 ~ 12.7 | 100 | 500 | 4.5 | 3.5 |
COMPANY OVERVIEW
- Xian Xiwuer Electronic and Info. Co., Ltd is a wholly state-owned
company with a registered capital of CNY 101.465 million (exchanged
to USD15.85 million), owning total assets of CNY315 million (traded
to USD 49.22 million). It was established in 1976. Currently, it
has about 460 employees, with an annual sales income of CN280
million (exchanged to USD43.75 million). The company has four
production and business bases covering an area of 43052 square
meters, and a construction area of more than 50000 square meters.
The company has 8 persons with master's degrees, more than 80
engineers with senior technical titles 12 technicians who have been
awarded Experts with Outstanding Contributions by the Xian
municipal government, and 1 expert who has been enjoying a special
allowance from the State Council.
- The main products include
• Smart Embedded Epoxy Pole;
• Integrated Instrument Transformer
• Capacitive Voltage Divider;
• High Voltage Capacitor Rod;
• High Voltage Film Capacitor;
• High Voltage Resistor;
• Primary and Secondary Integrated Intelligent assembly and
components with the function of voltage measurement, current
measurement, protection, temperature monitoring, and power supply;
• Medium-High Voltage components/parts/ assembly;
• Surge Protective Device for Power Supply System;
• Chips for lightening devices;
• Zinc Oxide Varistor;Thermistor.
Major Customers: ABB, Schneider, GE, ZTE, XD Electric, XJ Electric, PingGao Electric
and etc.
- The company has the provincial Technical R&D Center. The
company has developing and manufacturing experiences of the key
products HV Ceramic Capacitor, SPD, Varistor, Thermistor and for
nearly 20 years. There have been 32 patented technology, 4
invention patents, and 4 national key new products. The company is
in the leading position in the same industry. The company has grown
very fast with a unique management system which is the fundamental
guarantee to the continuous development of the enterprise under the
state-owned system. In Northwest China, the company is the first to
implement ISO 9001 standards and the first to promote the use of
ERP management systems, having achieved ISO9001, ISO14001, and
ISO45001 approval, thus standardizing and improving the management
level of the company.
- Through continuous technological innovation, product R&D, and
quality improvement the main technical performance and reliability
of the products are at the internationally advanced level as the
same level with Panasonic and Siemens. The products have got UL,
VDE, TUV, CAS, CE, CQC, RoHS, and REACH Certification. The company
has advanced production equipment among which the key production
equipment and modern assembly lines are imported from Japan, the
U.S.A, Germany, Korea, and Belgium including 26m large sintering
tunnel furnaces8 automatic assembly lines, the largest energy
impulse current generator and a series of special test equipment
and environmental test equipment. In the same industry in China,
the company has the largest production capacity, the highest degree
of automation with the most complete testing methods. The company
has two routine test laboratories with the most advanced lightning
testing equipment and environmental testing equipment which comply
with national standards for laboratory construction. They are the
significant laboratories supported by Shaanxi Province with
professional testing technicians undertaking part of the
supervision and inspection of electronic products in Shaanxi
Province at the same time.
- We believe we are able to supply satisfied goods and services to
customers at home and abroad with the most reasonable price and the
shortest delivery time. on the bases of our excellent quality
assurance capacity, technical development capacity, and rich
manufacturing experiences.
CERTIFICATE