China CJX2-N Interlocking Contactor Suppliers - Reliable Factory for AC Motors and Dual Power Control Solutions
Type and meaning
Normal working conditions and installation conditions
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The altitude of the installation site should not exceed 2000m;
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The ambient air temperature should not be higher than +40℃ and not be lower than -5℃.
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When the highest temperature is +40℃, the relative humidity of the air on the installation site should not be higher than 50%; A higher relative humidity is allowed at a lower temperature: In the wettest month, the monthly average minimum temperature should not exceed +20℃ and the average maximum relative humidity should not exceed 90%. Measures should be taken for condensation on the product due to temperature change.
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The inclination between the installation surface and the vertical plane should not exceed ±22.5°.
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Pollution level: level 3;
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The product should be installed in a place without obvious shaking, impact and vibration.
Structural features of the product
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The action mechanism is of direct acting type, and the contact is of double breakpoints.
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With the combination function, all surfaces except for the installation surface may be additionally provided with accessories.
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Auxiliary contact sets may be additionally installed on both sides.
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Auxiliary contact sets or air damping, type time relays may be additionally installed on the upper side.
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The coil terminal may be additionally provided with various functional modules such as time delay units.
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Both mechanical and electrical interlocking can be achieved.
Main parameters and technical performance
| Type | CJX2-09N | CJX2-12N | CJX2-18N | NCJX2-25N | CJX2-32N | CJX2-40N | CJX2-50N | CJX2-65N | CJX2-80N | CJX2-95N | ||||||
| Rated working current A | 380V | 9 | 12 | 18 | 25 | 32 | 40 | 50 | 65 | 80 | 95 | |||||
| 660V | 20 | 8.9 | 12 | 18 | 21 | 34 | 39 | 42 | 49 | 55 | ||||||
| Conventional thermal current Ith A | 20 | 20 | 32 | 40 | 50 | 60 | 80 | 80 | 125 | 125 | ||||||
| Rated working voltage Ue V | 380 | |||||||||||||||
| Rated insulation voltage Ui V | 690 | |||||||||||||||
| AC-3 | Electrical endurance 104 times | 100 | 100 | 100 | 100 | 80 | 80 | 80 | 80 | 60 | 60 | |||||
| Operating frequency times/h | 1200 | 1200 | 1200 | 1200 | 600 | 600 | 600 | 600 | 600 | 600 | ||||||
| AC-4 | Electrical endurance 104 times | 20 | 20 | 20 | 20 | 20 | 15 | 15 | 15 | 10 | 10 | |||||
| Operating frequency times/h | 300 | 300 | 300 | 300 | 300 | 300 | 300 | 300 | 300 | 300 | ||||||
| Rated working current Ie A | 380V | 3.5 | 5 | 7.7 | 8.5 | 12 | 18.5 | 24 | 28 | 37 | 44 | |||||
| 660V | 1.5 | 2 | 2.8 | 4.4 | 7.5 | 9 | 12 | 14 | 17.3 | 21.3 | ||||||
| Auxiliary contact | Electrical endurance | AC-15 360VA | The same as the electrical endurance of the main contact (AC-3) | |||||||||||||
| DC-13 (33W) | ||||||||||||||||
| Minimum load for connection | 6V 10mA | |||||||||||||||
| Coil | Rated control voltage Us V | 24, 48, 110, 220, 380 | ||||||||||||||
| Pull-in voltage | (0.85~1.10)Us | |||||||||||||||
| Release voltage | (0.20~0.75)Us | |||||||||||||||
| Coil power | Pull-in | 70 | 70 | 70 | 110 | 110 | 200 | 200 | 200 | 200 | 200 | |||||
| Holding | 8 | 8 | 8 | 11 | 11 | 20 | 20 | 20 | 20 | 20 | ||||||
Outline and installation dimensions
Note:
C1: CJX2-N+F4
C2: CJX2+SK2-2/3
C1: CJX2-N+F4
C2: CJX2+SK2-2/3
| Interlocking contactor type | A max | B max | C max | D max | C1 | C2 | a | b |
|---|---|---|---|---|---|---|---|---|
| CJX2-09N, 12N | 112 | 76 | 87 | 86 | 115 | 134 | 96 | 50 |
| CJX2-18N | 112 | 76 | 92 | 86 | 120 | 139 | 96 | |
| CJX2-25N | 134 | 86 | 102 | 98 | 130 | 149 | 112 | 60 |
| CJX2-32N | 134 | 86 | 120 | 100 | 135 | 154 | 112 |
Note:
C1: CJX2-N+F4
C2: CJX2+SK2-2/3
C1: CJX2-N+F4
C2: CJX2+SK2-2/3
| Interlocking contactor type | A max | B max | C max | D max | C1 | C2 | a | ai | b |
|---|---|---|---|---|---|---|---|---|---|
| CJX2-10N, 50N, 65N | 176 | 128 | 145 | 138 | 149 | 168 | 49 | 90±0.70 | 100 / 110 |
| CJX2-80N, 95N | 190 | 128 | 162 | 146 | 160 | 179 | 56 | 90±0.70 | 100 / 110 |
Tightening torque for verifying mechanical strength of connection terminal of AC contactor
| Basic specification | Thread diameter mm | Tightening torque N·m |
|---|---|---|
| 9~12 | 3.5 | 0.8 |
| 16-25 | 4 | 1.2 |
| 21-50 | 6 | 2.5 |
| 63~125 | 6 | 3.0 |
| 160~250 / 315~500 | 8 / 10 | 6.0 / 10.0 |
| 630~1000 | 12 | 14.0 |
Frequently Asked Questions (FAQ)
What is the maximum installation altitude for the CJX2-N series contactor?
The installation site's altitude should not exceed 2000 meters above sea level to ensure normal operation.
What are the ambient temperature requirements for this interlocking contactor?
The ambient air temperature must be kept within the range of -5°C to +40°C. The monthly average minimum temperature in the wettest month should not exceed +20°C.
Can both mechanical and electrical interlocking be achieved?
Yes, the structural features of the product allow for both mechanical and electrical interlocking to be achieved safely.
What is the rated insulation voltage (Ui) for the CJX2-N series?
The rated insulation voltage (Ui) for the entire series is 690V, with a rated working voltage (Ue) of 380V.
What accessories can be additionally installed on the CJX2-N contactor?
You can install auxiliary contact sets on both sides, auxiliary contact sets or air damping time relays on the upper side, and various functional modules (such as time delay units) on the coil terminal.
What is the required tightening torque for a basic specification of 9~12?
For the 9~12 specification with a thread diameter of 3.5mm, the recommended tightening torque is 0.8 N·m to verify mechanical strength.