ZnO varistor D52 H20 MOV blocks for surge protection ZOV electrical part high voltage metal oxide varistor
Zinc oxide varistor is a polycrystalline semiconductor material modified with zinc oxide as the main body and doped with various metal oxides. Due to its superior protection performance, large current capacity, and no freewheeling, it is widely used in internal and external overvoltage protection of power and electronic systems. Lightning arresters are the main product form used in power systems. When the voltage gradient of the zinc oxide varistor sheet is high, the current capacity is large, the residual voltage ratio is low, and the aging performance is excellent, it can not only reduce the volume and quality of the arrester itself, reduce the insulation level and cost of the protected equipment but also provide energy for power equipment. Provide safer and more reliable protection.
Features
- The aging performance is excellent, it can not only reduce the volume and quality of the arrester itself, but also reduce the insulation level and cost of the protected equipment
- It also provides energy for power equipment.
- Provide safer and more reliable protection.
Application
- Voltage division, filtering, and attenuation in signal processing circuits: Zinc oxide varistor ceramics can also be used in signal processing circuits for functions such as voltage division, filtering, and attenuation.
- Current detection and voltage measurement in sensor circuits: Zinc oxide varistor ceramics are used in sensor circuits for functions such as current detection and voltage measurement.
Technical Datasheet -----MOV Blocks for Lightning Arrester Classification 2 (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 |
| MOV46×20 | 48±0.5 | 20±0.5 | 4.0 ~ 4.8 | 7.0 ~ 8.4 | 100 | 600 | 3 | 4.9 |
| MOV46×30 | 48±0.5 | 30±0.5 | 6.2 ~ 7.0 | 10.9 ~ 12.3 | 100 | 600 | 4.5 | 4.9 |
| MOV52×20 | 52±0.5 | 20±0.5 | 4.0 ~ 4.8 | 7.0 ~ 8.4 | 100 | 800 | 3 | 6.3 |
| MOV52×30 | 52±0.5 | 30±0.5 | 6.2 ~ 7.0 | 10.8 ~ 12.2 | 100 | 800 | 4.5 | 6.3 |
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
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