China AC Contactor CJ20t ZNFO Special Series - Reliable Suppliers and Factory for Power Circuits up to 1000A
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
- Ambient Temperature: The ambient air temperature should be -5℃ to +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℃, 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 changes.
- Pollution Level: Level 3.
- Installation Category: Category II.
- 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 CJ20t-40A and above, the auxiliary contacts are installed on both sides of the main contact as independent components, which are electrically separated.
- CJ20t-10-25A products may be installed by screws or by 35mm standard card track.
- 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.
- 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
Can the products be customized for specific scenarios?
Yes, all products of the company can be customized for production according to user usage scenarios to ensure optimal performance.
What are the ambient temperature and altitude requirements for installation?
The ambient air temperature should be between -5℃ and +40℃, with an average temperature of no higher than +35℃ within 24 hours. The installation altitude should not exceed 2000m.
What installation methods are available for the CJ20t-10-25A models?
CJ20t-10-25A products offer flexible installation options and can be mounted using screws or a standard 35mm card track.
What are the benefits of the power-saving module in CJ20t-63~630?
These models feature a DC general power saving module. It allows the derivation of silencing energy-saving or DC-operated products without occupying auxiliary contacts, significantly improving product reliability and service life.
What type of contact system is used in these contactors?
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, electrically separated components.
What are the requirements regarding vibration during installation?
The product must be installed and operated in environments without obvious shaking, impact, or vibration to ensure stable and safe performance.