China AC Contactor CJ20t ZNFO Special Series - Reliable Suppliers & Factory for 50Hz/60Hz Applications
Advantage
All products of the company can be customized for production according to user usage scenarios.
Type and meaning
Normal working conditions and installation conditions
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The ambient air temperature should be -5℃-+40℃, with the average temperature of no higher than +35℃ within 24 hours
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Altitude: not higher than 2000m;
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Atmospheric conditions: when the highest temperature is +40℃, 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℃. Special measures should be taken for occasional condensation due to temperature change;
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Pollution level: level 3;
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Installation category: category II;
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Installation condition: the inclination between the installation surface and the vertical plane should not exceed ±5°.
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Impact vibration: the product should be installed and used in a place without obvious shaking, impact and vibration.
Structural features
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The contact system of the contactor is direct-acting with double breakpoints. For CJ20t-40A and above, the auxiliary contacts are installed on both sides of the main contact as independent components, which are electrically separated;
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CJ20t-10-25A products may be installed by screws or by 35mm standard card track;
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CJ20t-10-16A products have double breakpoints to simply break the arc extinguishing chamber, and the rest adopt the plastic grid arc extinguishing chamber, which has the advantages of high breaking capacity and high reliability;
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CJ20t-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.
Outline and installation dimensions
| Type | A | B | C | a | b | φ | mn | kg | |
|---|---|---|---|---|---|---|---|---|---|
| CJ20t-40 | 86.5 | 111.5 | 118 | 70±0.37 | 80±0.37 | 5±0.3 | 15±0.19 | 30 | 0.96 |
| CJ20t-63 | 116 | 142 | 146 | 100±0.4 | 90±0.4 | 5.8±0.3 | 10±0.29 | 60 | 2.9 |
| CJ20t-100 | 120±1.75 | 145±2 | 150±3.15 | 108±0.435 | 92±0.435 | 7±0.58 | 15±0.38 | 70 | 3 |
| CJ20t-160 | 146 | 187 | 178 | 130±0.5 | 130±0.5 | 9±0.58 | 15.5±0.35 | 80 | 5.5 |
| CJ20t-250 | 190 | 235 | 230 | 160±0.5 | 150±0.5 | 9±0.58 | 17±0.35 | 100 | 10.5 |
| CJ20t-400 | 190 | 235 | 230 | 160±0.5 | 150±0.5 | 9±0.58 | 17±0.35 | 100 | 10 |
| CJ20t-630 | 245 | 294 | 272 | 210±0.575 | 180±0.5 | 11±0.7 | 11±0.7 | 120 | 21.5 |
| CJ20t-800-1000 | 245 | 294 | 287 | 210±0.575 | 180±0.5 | 11±0.7 | 11±0.7 | 120 | 21.5 |
Frequently Asked Questions (FAQ)
Can the products be customized for specific scenarios?
Yes, all products of the company can be customized for production according to user usage scenarios.
What are the ambient air temperature requirements for normal operation?
The ambient air temperature should be within the range of -5℃ to +40℃, and the average temperature must not exceed +35℃ within 24 hours.
What is the maximum altitude allowed for installation?
The installation altitude should not be higher than 2000 meters.
What are the installation inclination requirements?
The inclination between the installation surface and the vertical plane should not exceed ±5°.
How are the auxiliary contacts structured on CJ20t-40A and above models?
For CJ20t-40A and above, the auxiliary contacts are installed on both sides of the main contact as independent components, which are electrically separated.
Do the power saving modules of CJ20t-63~630 occupy auxiliary contacts?
No, the DC general power saving module of CJ20t-63~630 power saving products does not occupy auxiliary contacts, which helps improve the reliability and lifespan of the products.