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China CJ19 Capacitor Changeover Contactor - Reliable Suppliers & Factory for Low-Voltage Power Solutions
Type and meaning
Notes:
The number of auxiliary contacts is represented by two digits, of which the tens digit is the logarithm of normally open contacts, and the units digit is the logarithm of normally closed contacts.
For AC-6b 400vAT, the rated working currents corresponding to various specification codes are 25(18A), 32(24A), 43(29A), 50(36A), 63(48A), 95(58A), 125(87A).
Normal working conditions and installation conditions
- The ambient air temperature should not exceed +40℃, with the average temperature of no higher than +35℃ within 24 hours. The lower limit of the ambient air temperature should be -5℃: 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;
- The altitude of the installation site should not exceed 2000m;
- Pollution level: level 3;
- Installation category: category II;
- Installation condition: the inclination between the installation surface of the contactor and the vertical plane should not exceed 5°.
- Impact and vibration: the product should be installed in a place without obvious shaking, impact and vibration.
Schematic diagram of wiring
For the schematic diagram of wiring of CJ19 series, please refer to Fig. 1.

L1~L3 should be connected to the power supply side; T1~T3 should be connected to the load side.
Main parameters and technical performance
| CJ19 | 25 | 32 | 43 | 63 | 95 | 115 | 150 | 170 | |
|---|---|---|---|---|---|---|---|---|---|
| Rated insulation voltage (Ui) V | 500V | 690V | |||||||
| Rated working voltage (Ue) V | 220V/240V, 380V/400V | ||||||||
| Controllable capacitor Capacity (Qn) Kva | 220V | 6 | 9 | 10 | 15 | 28.8 (240V) | 34.5 (240V) | 46 (240V) | 52 (240V) |
| 380V | 12 | 18 | 20 | 30 | 50 (400V) | 60 (400V) | 80 (400V) | 90 (400V) | |
| Conventional free air thermal current Ith | 25 | 32 | 43 | 63 | 63 | 200 | 200 | 275 | |
| Rated working current (AC-6b) le A | 17 | 23 | 29 | 43 | 43 | 87 | 115 | 130 | |
| Inrush current suppression capability | 20le | ||||||||
| Control power supply voltage Us V | 110, 127, 220, 380 | ||||||||
| Auxiliary contact | AC-15: 360VA DC-13: 33W Ith: 10A | ||||||||
| Operating frequency times/h | 120 | ||||||||
| Electrical endurance 10,000 times | 10 | 2 | |||||||
| Mechanical endurance 10,000 times | 100 | 300 | |||||||
| Dimensions and type | Outline dimensions | Installation dimensions | ||||||
|---|---|---|---|---|---|---|---|---|
| A | B | C | D | A | B | φ | Calliper gauge | |
| CJ19-25 | 76 | 47 | 125 | 120 | 35 | 50/60 | 4.5 | 35 |
| CJ19-32 | 86 | 58 | 135 | 130 | 40 | 50/60 | ||
| CJ19-43 | 86 | 58 | 135 | 130 | 40 | 50/60 | ||
| CJ19-63 | 128 | 79 | 156 | 150 | 40 | 100/110 | 6.5 | 35/75 |
| CJ19-80 | 128 | 87 | 160 | 200 | 40 | 100/110 | ||
| CJ19-95 | 128 | 87 | 160 | 200 | 40 | 100/110 | ||
Shape and installation dimensions(mm)

Fig.2 Diagram of outline and installation dimensions of CJ19-25,32,43
Frequently Asked Questions (FAQ)
What are the ambient temperature requirements for the CJ19 contactor?
The ambient air temperature should be between -5℃ and +40℃. Additionally, the average temperature over a 24-hour period must not exceed +35℃. When the temperature reaches the highest limit of +40℃, the relative humidity should not exceed 50%.
What is the maximum installation altitude for the CJ19 series contactor?
The altitude of the installation site for the CJ19 series capacitor changeover contactor should not exceed 2000 meters.
How should the wiring be connected on the power and load sides?
According to the wiring schematic, terminals L1, L2, and L3 must be connected to the power supply side, while terminals T1, T2, and T3 must be connected to the load side.
What is the allowable installation inclination for the contactor?
The inclination between the installation surface of the contactor and the vertical plane must not exceed 5°. Additionally, it should be installed in a location free of obvious shaking, impact, or vibration.
What is the rated insulation voltage (Ui) for the different CJ19 models?
For CJ19-25 through CJ19-95 models, the rated insulation voltage (Ui) is 500V. For the larger CJ19-115 through CJ19-170 models, the rated insulation voltage (Ui) is 690V.
What is the pollution level and installation category of this product?
The contactor is rated for Pollution Level 3 and falls under Installation Category II.













