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China AC Contactor CJX1 - 660V, 400A, Reliable Suppliers & Factory for Electrical Solutions
Type and meaning
Normal working conditions and installation conditions
Altitude: not higher than 2000m;
The ambient air temperature should be -5℃ ~+40℃, with the average temperature of no higher than +35℃ within 24 hours.
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 not higher than 90% under +20℃. Special measures should be taken for occasional condensation due to temperature change;
Pollution level: level 3;
Installation category: category II;
Installation condition: the inclination between the installation surface and the vertical plane should not exceed ±5°;
The product should be installed in a place without obvious shaking, impact and vibration.
Main parameters and technical performance
| Type | CJX1 -9 | CJX1 -12 | CJX1 -16 | CJX1 -22 | CJX1 -32 | CJX1 -45 | CJX1 -63 | CJX1 -75 | CJX1 -85 | CJX1 -110 | CJX1 -140 | CJX1 -170 | CJX1 -205 | CJX1 -250 | CJX1 -300 | CJX1 -400 | ||
| Rated insulation voltage U iv | 660 | |||||||||||||||||
| Rated working current le(A) | AC-3 | 380 | 9 | 12 | 16 | 22 | 32 | 45 | 63 | 75 | 85 | 110 | 140 | 170 | 205 | 250 | 300 | 400 |
| 660 | 7.2 | 9.5 | 13.5 | 13.5 | 18 | 45 | 63 | 75 | 75 | 110 | 110 | 170 | 170 | 200 | 250 | 320 | ||
| AC-4 | 380 | 3.3 | 4.3 | 7.7 | 8.5 | 12 | 24 | 28 | 4 | 42 | 54 | 68 | 75 | 96 | 110 | 125 | 150 | |
| 660 | 1.4 | 1.9 | 3.5 | 4 | 7.5 | 12 | 14 | 17 | 21 | 27 | 35 | 42 | 67 | 95 | 110 | 115 | ||
| Controllable power Pe(kW) | AC-3 | 380 | 4 | 5.5 | 7.5 | 11 | 15 | 22 | 30 | 37 | 45 | 55 | 75 | 90 | 110 | 132 | 160 | 200 |
| 660 | 5.5 | 7.5 | 11 | 11 | 15 | 37 | 55 | 55 | 55 | 90 | 90 | 160 | 160 | 185 | 220 | 315 | ||
| AC-4 | 380 | 1.5 | 22 | 4 | 4 | 5.5 | 11 | 11 | 18.5 | 22 | 30 | 37 | 37 | 45 | 55 | 55 | 75 | |
| 660 | 11 | 15 | 3 | 4 | 7.5 | 11 | 15 | 18.5 | 22 | 30 | 37 | 55 | 75 | 90 | 110 | |||
| Conventional thermal current >It | A | 20 | 30 | 45 | 70 | 90 | 150 | 170 | 205 | 250 | 300 | 400 | ||||||
| Rated operating frequency times h | AC-3 | 1200 | 600 | 300 | ||||||||||||||
| AC-4 | 300 | 150 | ||||||||||||||||
| Mechanical endurance(10,000times) | 1000 | 800 | 600 | |||||||||||||||
| Electrical endurance(10,000times)AC-4 | AC-3 | 100 | 80 | 60 | ||||||||||||||
| 20 | 15 | 10 | ||||||||||||||||
| Specification of matched fuse(RT16)A | 16 | 20 | 25 | 32 | 50 80 | 100 125 | 160 | 200 | 200 | 250 | 250 | 300 | 400 | 500 | ||||
The rated control power supply voltage Us of the contactor at Ac 50/60 Hz is: 36/42, 48/58, 110/132, 127/152, 220/264, 380/456(V).
The contactor coil can reliably hold at 85%~110% of the rated control power supply voltage, and can reliably release at 20%~75% of the rated control power supply voltage.
For the auxiliary circuit, the rated insulation voltage (Ui) is 660V; the conventional thermal current (Ith) is 10A; Other parameters are shown in Table 3.
| Use category | Rated working voltage U eV | Rated working current IeV | Rated control power | |
| AC VA | DC W | |||
|
AC-15 |
36 | 10 |
360 |
|
| 110 | 3.2 | |||
| 220 | 1.64 | |||
| 380 | 0.95 | |||
|
DC-13 |
48 | 0.69 |
33 |
|
| 110 | 0.3 | |||
| 220 | 0.15 | |||
Outline and installation dimensions

Fig.1 Outline and installation dimensions of CJX1-9/32
| Type | a max | b | c max | d | e max | g | Φ |
| CJX1-9/12 | 79 | 60±0.60 | 46 | 35±0.50 | 106 | 8 | +0.48 4.8 |
| CJX1-16/22 | 89 | 75±0.60 | 46 | 35±0.50 | 116 | 8 | |
| CJX1-32 | 90 | 75±0.60 | 74 | 50±0.550 | 109 | 8 | .+0.48 |
Frequently Asked Questions (FAQ)
Q:
What is the maximum altitude limit for installing the CJX1 series AC contactor?
The altitude for installation should not be higher than 2000 meters.
Q:
What are the required ambient air temperature conditions?
The ambient air temperature should be within the range of -5℃ to +40℃, with an average temperature of no higher than +35℃ within a 24-hour period.
Q:
What is the allowable relative humidity for the operating environment?
At the highest temperature of +40℃, the relative humidity should not exceed 50%. However, higher relative humidity is permitted at lower temperatures, such as up to 90% at +20℃.
Q:
What are the pollution level and installation category classifications of this product?
The product is classified under pollution level 3 and installation category II.
Q:
Under what voltage conditions can the contactor coil hold and release reliably?
The contactor coil holds reliably at 85% to 110% of the rated control power supply voltage, and releases reliably at 20% to 75% of the rated control power supply voltage.
Q:
What is the conventional thermal current (Ith) for the auxiliary circuit?
The conventional thermal current (Ith) for the auxiliary circuit is 10A, with a rated insulation voltage (Ui) of 660V.












