China AC Contactor CJ20 ZNFO Traditional Series - 690V, 1000A, Reliable Suppliers and Factory Solutions
Type and meaning
Normal working conditions and installation conditions
- The ambient air temperature should be -5℃ -+40℃, with the average temperature of no higher than +35℃ within 24 hours.
- Altitude: not higher than 2000m;
- Atmospheric conditions: when the highest temperature is +40'c, the relative humidity of the air should not be higher than 50%; A higher relative humidity is allowed at a lower temperature, such as 90% under 20℃c. Special measures should be taken for occasional condensation due to temperature change;
- Pollution level: level 3;
- Installation category: category III；
- Installation condition: the inclination between the installation surface and the vertical plane should not exceed +5°.
- Impact vibration: the product should be installed and used in a place without obvious shaking, impact and vibration.
Structural features
The contact system of the contactor is direct-acting with double breakpoints, For CJ20-40A and above, the auxiliary contacts are installed on both sides of the main contact as independent components, which are electrically separated;
CJ20-10-25A products may be installed by screws or by 35mm standard card track.
CJ20-10-16A products have double breakpoints to simply break the arc extinguishing chamber, and the rest adopt the plastic grid are extinguishing chamber, which has the advantages of high breaking capacity and high reliability;
C120-63~630 power saving products have the DC general power saving module, which not only can derive silencing energy saving products or DC operated products, but also do not occupy auxiliary contacts, thus greatly improving the reliability and life of products.
Shape and installation dimensions(mm)
| Type | A | B | C | a | b | φ | F m n | kg | |
|---|---|---|---|---|---|---|---|---|---|
| CJ20-10 | 45 | 67.5 | 107 | 35±0.31 | 55±0.37 | 5±0.3 | 7.5±0.19 | 10 | 0.35 |
| CJ20-16 | 45 | 73 | 116.5 | 35±0.31 | 55±0.37 | 5±0.3 | 7.5±0.29 | 10 | 0.43 |
| CJ20-25 | 52.5 | 90.5 | 122 | 40±0.31 | 80±0.37 | 5±0.3 | 7.5±0.29 | 15 | 0.67 |
| CJ20-40 | 86.5 | 111.5 | 118 | 70±0.37 | 80±0.37 | 5±0.3 | 15±0.19 | 30 | 0.96 |
| CJ20-63 | 116 | 142 | 146 | 100±0.4 | 90±0.4 | 5.8±0.3 | 10±0.29 | 60 | 2.9 |
| CJ20-100 | 120±1.75 | 145±2 | 150±3.15 | 108±0.435 | 92±0.435 | 7±0.58 | 15±0.38 | 70 | 3 |
| CJ20-160 | 146 | 187 | 178 | 130±0.5 | 130±0.5 | 9±0.58 | 15.5±0.35 | 80 | 5.5 |
| CJ20-250 | 190 | 235 | 230 | 160±0.5 | 150±0.5 | 9±0.58 | 17±0.35 | 100 | 10.5 |
| CJ20-400 | 190 | 235 | 230 | 160±0.5 | 150±0.5 | 9±0.58 | 17±0.35 | 100 | 10 |
| CJ20-630 | 245 | 294 | 272 | 210±0.575 | 180±0.5 | 11±0.7 | 11±0.7 | 120 | 21.5 |
| CJ20-800-1000 | 245 | 294 | 287 | 210±0.575 | 180±0.5 | 11±0.7 | 11±0.7 | 120 | 21.5 |
Frequently Asked Questions
Q: What are the ambient temperature requirements for the CJ20 series AC contactor?
The ambient air temperature must be between -5℃ and +40℃, and the average temperature over a 24-hour period should not exceed +35℃.
Q: What is the maximum installation altitude and inclination for these contactors?
The installation altitude should not exceed 2000 meters, and the inclination between the installation surface and the vertical plane must not exceed +5°.
Q: How do the installation options differ among CJ20 series models?
CJ20-10-25A products can be installed using screws or on a 35mm standard card track. For CJ20-40A and above, auxiliary contacts are installed as independent, electrically separated components on both sides of the main contact.
Q: What kind of arc extinguishing chambers do these contactors use?
CJ20-10-16A models feature double breakpoints for a simplified break arc extinguishing chamber, while the remaining models utilize a plastic grid arc extinguishing chamber for high breaking capacity and reliability.
Q: What are the benefits of the power-saving module in the CJ20-63~630 models?
The CJ20-63~630 power saving products are equipped with a DC general power saving module. This allows for silencing energy-saving or DC operated configurations without occupying auxiliary contacts, significantly enhancing product reliability and lifespan.