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China CJX1 (3TF) Series AC Contactors 9-400A 690V - Reliable Suppliers and Factory for Industrial Automation Solutions

The CJX1 (3TF) Series AC Contactor is specially designed for demanding industrial applications, making it a preferred choice among China suppliers and manufacturers. This high-performance electrical component is ideal for long-distance circuit connections and disconnections. It is particularly effective in environments that require frequent motor starting, stopping, and reversing control. Operating at 50/60Hz frequencies, this contactor handles rated voltages of up to 690-1000V and rated operational currents ranging from 9A to 400A at 380V, adhering to the AC-3 utilization category. Fully compliant with IEC 947, VDE 0660, and GB 14048 standards, this product guarantees safety and reliability in various automation systems, making it a top choice from leading factories
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    Product Details

    Features
    • 1For better safety, conductive parts are enclosed.
    • 2Small size, light weight; material of arc chute adopts unsaturated resin, with good arc resistance and no splitting.
    • 3The arc chute is enclosed, arc-over distance is small, supporting a compact electric cabinet.
    • 4Construction of main contacts system is unique, abrasion of the contacts is small, with long electric endurance.
    • 5The operation of the magnet has many advantages such as good reliability, little consumption, low noise and high mechanical strength.
    • 6The contactors have higher operation frequency and control capacity.
    • 7Auxiliary contact block may be attached to CJX1-F(3TF30-50) series AC contactors.
    • 8SIGUT–Siemens patent terminal ensures easy and reliable connection, strong shock resistance and perfect safety protection.
    Main Technical Specifications
    Type CJX1-9F
    3TF30    		 CJX1-9F
    3TF40    		 CJX1-12F
    3TF31    		 CJX1-12F
    3TF41    		 CJX1-16F
    3TF32    		 CJX1-16F
    3TF42    		 CJX1-22F
    3TF33    		 CJX1-22F
    3TF43    		 CJX1-32F
    3TF34    		 CJX1-32
    3TF44    		 CJX1-38F
    3TF35    		 CJX1-38
    3TF45    		 CJX1-45
    3TF46    		 CJX1-63
    3TF47    		 CJX1-75
    3TF48    		 CJX1-75
    3TF49    		 CJX1-110
    3TF50    		 CJX1-140
    3TF51    		 CJX1-170
    3TF52    		 CJX1-205
    3TF53    		 CJX1-250
    3TF54    		 CJX1-300
    3TF55    		 CJX1-400
    3TF56
    Rated insulation voltage (V) 690 690 690 690 690 690 690 690 690 690 690 690 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
    Rated operational current (380V) (A) AC-3 9 9 12 12 16 16 22 22 32 32 38 38 45 63 75 85 110 140 170 205 250 300 400
    AC-4 3.3 3.3 4.3 4.3 7.7 7.7 8.5 8.5 15.6 15.6 18.5 18.5 24 28 34 42 54 68 75 96 110 125 150
    Rated outputs of three-phase motors at 50Hz (KW) AC-3 230/220V
    400/380V
    500V
    690/660V
    1000V    		 2.4
    4
    5.5
    5.4
    -    		 2.4
    4
    5.5
    5.5
    -    		 3.3
    5.5
    7.5
    7.5
    -    		 3.3
    5.5
    7.5
    7.5
    -    		 4
    7.5
    9
    11
    -    		 4
    7.5
    9
    12
    -    		 5.5
    11
    11
    11
    -    		 5.5
    11
    11
    11
    -    		 8.5
    15
    21
    23
    -    		 8.5
    15
    21
    23
    -    		 11
    18.5
    25
    23
    -    		 11
    18.5
    25
    23
    -    		 15
    22
    30
    39
    -    		 18.5
    30
    41
    55
    -    		 22
    37
    50
    67
    39    		 26
    45
    59
    67
    39    		 37
    55
    76
    100
    65    		 43
    75
    98
    100
    65    		 55
    90
    118
    156
    90    		 64
    110
    145
    156
    90    		 78
    132
    178
    235
    132    		 93
    160
    210
    235
    132    		 125
    200
    284
    375
    250
    AC-4 400/380V
    690/660V    		 1.48/1.4
    2.54/2.4    		 1.48/1.4
    2.54/2.4    		 2/1.9
    3.45/3.3    		 2/1.9
    3.45/3.3    		 3.5
    6    		 3.5
    6    		 4
    6.6    		 4
    6.6    		 7.5
    13    		 7.5
    13    		 9
    15.5    		 9
    15.5    		 12.6/12
    21.8/20.8    		 14.7/14
    25.4/24.3    		 17.9/17
    30.9/29.5    		 22/21
    38/36    		 28.4/27
    49/46.9    		 36/35
    63/60    		 40/38
    69/66    		 52/50
    90/86    		 61/58
    105/100    		 69/66
    119/114    		 85/81
    147/140
    Mechanical endurance (×10⁶) 15 15 15 15 15 15 15 15 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
    Electrical endurance (×10⁶) AC-3 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2
    AC-4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
    Switching frequency (1/h) AC-3 1000 1000 1000 1000 750 750 750 750 750 750 600 600 1200 1000 1000 850 1000 750 700 500 700 500 500
    AC-4 250 250 250 250 250 250 250 250 250 250 200 200 400 300 300 200 300 200 200 130 200 130 150
    Coil voltage tolerance (0.8～1.1)Us
    Power consumption of coil (50Hz) (AC) Closed (VA) 10 10 10 10 10 10 10 10 12.1 12.1 12.1 12.1 17 17 32 32 39 39 58 58 84 84 115
    Power Factor (p.f.) 0.29 0.29 0.29 0.29 0.29 0.29 0.29 0.29 0.28 0.28 0.28 0.28 0.29 0.29 0.29 0.29 0.24 0.24 0.26 0.26 0.24 0.24 0.33
    Closing (VA) 68 68 68 68 68 68 68 68 101 101 101 101 183 183 330 330 550 550 910 910 1430 1430 2450
    Power Factor (p.f.) 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.83 0.83 0.83 0.83 0.6 0.6 0.6 0.6 0.45 0.45 0.38 0.38 0.34 0.34 0.21
    Convention althermal current (A) 20 20 20 20 30 30 30 30 55 55 55 55 80 90 100 100 160 160 210 220 300 300 400
    Conventional thermal current of auxiliary contacts (A) 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
    Rated operational current of auxiliary contacts (A) AC-15 380/220V 4-6 6-10 4-6 6-10 4-6 6-10 4-6 6-10 4-6 4-6 4-6 4-6 4-6 4-6 4-6 4-6 4-6 4-6 4-6 4-6 4-6 4-6 4-6
    Weight (kg) AC0.37 AC0.43 AC0.37 AC0.43 AC0.45 AC0.49 AC0.45 AC0.49 AC0.68 AC0.8 AC0.68 AC0.8 AC1.4/1.6 AC1.4/1.6 AC2.3/2.5 AC2.3/2.5 AC3.3/3.5 AC3.3/3.5 AC4.8/5.0 AC4.8/5.0 AC6.2/6.4 AC6.2/6.4 AC8.5/8.7
    Product Display
    cjx2-d-ac-contactor-right-view
    cjx2-d-ac-contactor-top-view
    Outline and Installation Dimension
    CJX2-D-4
    CJX1(3TF30～38 、40～45) AC Contactor
    Type amax b cmax d emax f Φ
    CJX1F-9/22 79 60±0.60 46 35±0.50 106 8 4.8
    CJX1F-12/22 79 60±0.60 46 35±0.50 106 8 4.8
    CJX1F-16/22 89 75±0.60 46 35±0.50 116 8 4.8
    CJX1F-22/22 89 75±0.60 46 35±0.50 116 8 4.8
    CJX1F-32/22 105 75±0.60 82 35±0.50 112 8 5.0
    CJX1F-38/22 105 75±0.60 82 35±0.50 112 8 5.0
    CJX1(3TF46～51) AC Contactor
    Type amax b cmax d emax f Φ
    CJX1-45/22 120 100±0.70 92 70±0.60 125 12 5
    CJX1-63/22 120 100±0.70 92 70±0.60 125 12 5.5
    CJX1-75/22 135 110±0.70 105 80±0.60 145 12 5.5
    CJX1-85/22 135 110±0.70 105 80±0.60 145 12 6.5
    CJX1-110/22 158 130±0.80 125 100±0.70 155 12 6.5
    CJX1-140/22 158 130±0.80 125 100±0.70 155 12 6.5
    CJX1(3TF52～56) AC Contactor
    Type a1 a2 a3 b1 b2 c1 M e1 f1 g d1 d2 Φg1
    CJX1-170 135 158 110 180 160 185 8 154 115 48 20 42 7
    CJX1-205 135 158 110 180 160 185 10 159 115 48 25 48 7
    CJX1-250 145 168 168 200 180 198 10 168 132 58 25 48 9
    CJX1-300 145 168 120 200 180 198 10 168 132 58 25 48 9
    CJX1-400 160 183 130 200 180 222 10 178 150 65 25 48 9
    CJX1-475 160 183 130 200 180 222 10 182 150 65 30 52 9
    Frequently Asked Questions
    QWhat is the rated insulation voltage of CJX1 / 3TF series AC contactors?
    The rated insulation voltage varies by model. For smaller models (CJX1-9F to CJX1-38, 3TF30–3TF45), the rated insulation voltage is 690V. For larger models (CJX1-45 and above, 3TF46–3TF56), the rated insulation voltage is 1000V, making them suitable for a wider range of industrial power systems.
    QWhat is the difference between AC-3 and AC-4 rated operational current for these contactors?
    AC-3 refers to the rated current for normal motor starting and switching off during running (squirrel-cage motors), while AC-4 applies to plugging, inching, and reversing duties which involve higher breaking currents. For example, the CJX1-9F (3TF30) has an AC-3 current of 9A but only 3.3A under AC-4 conditions at 380V.
    QCan auxiliary contact blocks be added to the CJX1-F series AC contactors?
    Yes. Auxiliary contact blocks may be attached to CJX1-F (3TF30–50) series AC contactors. The conventional thermal current for auxiliary contacts is 10A across all models, and the rated operational current for auxiliary contacts (AC-15, 380/220V) is 4–6A or 6–10A depending on the specific model variant.
    QWhat coil voltage tolerance is acceptable for CJX1 / 3TF series contactors?
    The coil voltage tolerance for all models in the CJX1 / 3TF series is (0.8～1.1)Us, meaning the coil will operate reliably within 80% to 110% of the rated supply voltage. This ensures stable performance even with minor voltage fluctuations in the power supply.
    QWhat is the mechanical endurance life of CJX1 / 3TF series contactors?
    The mechanical endurance is 15×10⁶ operations for smaller models (CJX1-9F to CJX1-22F, 3TF30–3TF43), and 10×10⁶ operations for larger models (CJX1-32 and above). The electrical endurance under AC-3 duty is 1.2×10⁶ operations, and 0.2×10⁶ operations under AC-4 duty for all models.
    QWhat are the key structural advantages of the CJX1 / 3TF series AC contactors?
    The CJX1 / 3TF series features an enclosed arc chute made of unsaturated resin for excellent arc resistance, a compact design with small arc-over distance suitable for compact electric cabinets, a unique main contacts system for minimal abrasion and long electrical endurance, and SIGUT (Siemens patent) terminals for easy, reliable, and shock-resistant wiring connections.