3kV 5kA Metal Oxide Rheostat Mov Block Surge Arrester For Overvoltage protection
Price:
Negotiable
MOQ:
5000PCS
Delivery Time:
5-7 days
Brand:
UCHI
Product Description
3kV 5kA Metal Oxide Rheostat MOV Block Surge Arrester for Overvoltage Protection
A complex structure of micro varistors consisting of Zinc oxide grains and surrounding high-resistance grain boundary layers, connected in series and parallel. Therefore, if the size of the Zinc oxide grains is the same, the varistor voltage is proportional to the thickness and the surge withstand capability is proportional to the cross-section area of the MOV.
Compared to ordinary resistive elements, MOVs have a very large non-linear voltage-current characteristic, so they act as insulators in areas where the applied voltage is small, and as conductors in areas where the voltage is large, such as in lightning surges. This makes it possible to safely protect equipment from lightning surges.
Key Features
- Excellent non-ohmic property: When an excessive surge is applied to a MOV, the terminal voltage is kept low to protect electronic equipment and power facilities.
- High surge withstand capability: Uniform current flow due to high homogeneity of ZnO ceramics and high collaring materials with excellent insulation.
- Long service life: High reliability under constant system voltage application.
- Wide product range: Comprehensive selection of AC and DC products from low to high voltage to meet diverse requirements.
- International compliance: MOVs satisfy IEC, IEEE, UL and other international standards for surge arresters and SPDs.
Product Specifications
Product name: Metal oxide varistor resistor D32*20mm Uchi electric
Type: Varistor D32*H20mm
Material: Zinc oxide
Application for Arrester Classification DM (IEC Standard)
| Specification | Diameter (mm) | Thickness (mm) | D.C. reference voltage (U1mA) (kV) | Max. ratio of residual voltage (8/20us) at 5kA | Current impulse withstand capability | Recommended rated voltage (kV) | Maximum energy absorption capacity (kJ/kVr) |
|---|---|---|---|---|---|---|---|
| MOV30×3 | 30±0.5 | 3.0±0.5 | 0.6-0.8 | 1.82 | 40 (4/10us) 150 (2ms) | 0.28 | 0.8 |
| MOV30×6 | 30±0.5 | 6.0±0.5 | 1.2-1.6 | 1.82 | 40 (4/10us) 150 (2ms) | 0.5 | 0.8 |
| MOV30×20 | 30±0.5 | 20±0.5 | 4.0-4.8 | 1.82 | 65 (4/10us) 150 (2ms) | 3 | 1.2 |
| MOV30×30 | 30±0.5 | 30±0.5 | 6.2-7.0 | 1.82 | 65 (4/10us) 150 (2ms) | 4.5 | 1.2 |
| MOV32×20 | 32±0.5 | 20±0.5 | 4.0-4.8 | 1.75 | 65 (4/10us) 200 (2ms) | 3 | 1.6 |
| MOV32×30 | 32±0.5 | 30±0.5 | 6.2-7.0 | 1.75 | 65 (4/10us) 200 (2ms) | 4.5 | 1.6 |
| MOV35×20 | 35±0.5 | 20±0.5 | 4.0-4.8 | 1.73 | 65 (4/10us) 250 (2ms) | 3 | 2.0 |
| MOV35×30 | 35±0.5 | 30±0.5 | 6.2-7.0 | 1.73 | 65 (4/10us) 250 (2ms) | 4.5 | 2.0 |
Application for Arrester Classification DH (IEC Standard)
| Specification | Diameter (mm) | Thickness (mm) | D.C. reference voltage (U1mA) (kV) | Max. ratio of residual voltage (8/20us) at 10kA | Current impulse withstand capability | Recommended rated voltage (kV) | Maximum energy absorption capacity (kJ/kVr) |
|---|---|---|---|---|---|---|---|
| MOV36.5×20 | 36.5±0.5 | 20±0.5 | 4.0-4.8 | 1.83 | 100 (4/10us) 350 (2ms) | 3 | 2.5 |
| MOV36.5×30 | 36.58±0.5 | 30±0.5 | 6.2-7.0 | 1.83 | 100 (4/10us) 350 (2ms) | 4.5 | 2.5 |
| MOV42×20 | 42±0.5 | 20±0.5 | 4.0-4.8 | 1.81 | 100 (4/10us) 400 (2ms) | 3 | 3.4 |
| MOV42×30 | 42±0.5 | 30±0.5 | 6.2-7.0 | 1.81 | 100 (4/10us) 400 (2ms) | 4.5 | 3.4 |
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Guangdong Uchi Electronics Co.,Ltd
Location
Room 810, Unit 2, Building 5, Huixing Commercial Center, Dongsheng Road No.1, Zhongshan Dong, Shilong Town Dongguan, GUANGDONG, 523326 CN
Contact Person
Anna