China AC Contactor CJ20 ZNFO Traditional Series - 690V 1000A Motor Starter | Reliable Suppliers & Factory
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
What is the ambient temperature limit for the CJ20 AC contactor?
The ambient air temperature for standard operation must be between -5℃ and +40℃. Additionally, the average temperature over a 24-hour period should not exceed +35℃.
What is the maximum installation altitude for the CJ20 series?
The CJ20 series AC contactor should be installed at an altitude not exceeding 2000 meters above sea level.
How can the CJ20-10-25A contactors be mounted?
CJ20-10-25A models support dual installation options: they can be mounted using standard screws or securely snapped onto a 35mm standard card track.
What are the structural features of the auxiliary contacts on larger CJ20 models?
For CJ20-40A and above, the auxiliary contacts are designed as independent, electrically separated components and are installed on both sides of the main contact system.
What are the benefits of the power-saving modules in the CJ20-63~630 models?
The CJ20-63~630 models feature a DC general power-saving module. This module allows the derivation of silencing energy-saving or DC-operated products without occupying auxiliary contacts, significantly improving overall reliability and product lifespan.
What is the allowed installation angle inclination for the CJ20 contactor?
The inclination between the vertical plane and the contactor's installation surface must not exceed +5°.