CJX2 Series AC Contactor
Key attributes
| Brand | Switchgear parts |
| Model NO. | CJX2 Series AC Contactor |
| Rated voltage | 380V |
| Rated normal current | 25A |
| Rated frequency | 50/60Hz |
| Series | CJX2 |
Product descriptions from the supplier
Application
CJX2 series AC contactor is suitable for the powersystem of AC 50Hz or 60Hz and rated insulationvoltage up to 690V or the power system of rated working voltage 380V and rated working current up to 620Aunder AC-3 utilization, used to make and break circuitn a far distance or to frequently start and control AC motors, while, it can be combined with thermal relayor electronic protection equipment to form into anelectromagnetic starter to protect the circuit againstpossible overload.
Main Technical Data
1. 9A-95A
Type |
CJX2 - 09 |
CJX2 - 12 |
CJX2 - 18 |
CJX2 - 25 |
CJX2 - 32 |
CJX2 - 40 |
CJX2 - 50 |
CJX2 - 65 |
CJX2 - 80 |
CJX2 - 95 |
||
Rated Working current |
380V |
AC - 3 |
9 |
12 |
18 |
25 |
32 |
40 |
50 |
65 |
80 |
95 |
AC - 4 |
3.5 |
5 |
7.7 |
8.5 |
12 |
18.5 |
24 |
28 |
37 |
44 |
||
660V |
AC - 3 |
6.6 |
5.9 |
12 |
18 |
21 |
34 |
39 |
42 |
49 |
55 |
|
AC - 4 |
1.5 |
2 |
3.5 |
4.4 |
7.5 |
9 |
12 |
14 |
17.3 |
21.3 |
||
Conventional thermal current |
20 |
20 |
32 |
40 |
50 |
60 |
80 |
80 |
125 |
125 |
||
Power of controllable three - phase squirrel cage motor AC - 3 kW |
220V |
2.2 |
3 |
4 |
5.5 |
7.5 |
11 |
15 |
18.5 |
22 |
25 |
|
380V |
4 |
5.5 |
7.5 |
11 |
15 |
18.5 |
22 |
30 |
37 |
45 |
||
660V |
5.5 |
7.5 |
9 |
15 |
18.5 |
30 |
33 |
37 |
45 |
55 |
||
Operating frequency |
Electrical |
AC - 3 |
1200 |
600 |
||||||||
AC - 4 |
300 |
|||||||||||
Mechanical life |
3600 |
|||||||||||
Electrical life |
AC - 3 |
100 |
80 |
60 |
||||||||
AC - 4 |
20 |
15 |
10 |
|||||||||
Mechanical life |
1000 |
800 |
600 |
|||||||||
Fuse model |
RT16 - 20 |
RT16 - 20 |
RT16 - 32 |
RT16 - 32 |
RT16 - 50 |
RT16 - 63 |
RT16 - 80 |
RT16 - 80 |
RT16 - 100 |
RT16 - 125 |
||
Conform to standard |
GB/T14048.1 |
GB14048.4 |
IEC 60947 - 4 - 1 |
2. 115A-620A
Type |
CJX2 - 115 |
CJX2 - 150 |
CJX2 - 170 |
CJX2 - 205 |
CJX2 - 245 |
CJX2 - 300 |
CJX2 - 410 |
CJX2 - 475 |
CJX2 - 620 |
||
Rated Working current |
380V |
AC - 3 |
115 |
150 |
170 |
205 |
245 |
300 |
410 |
475 |
620 |
AC - 4 |
52 |
60 |
75 |
85 |
105 |
217 |
135 |
147 |
180 |
||
660V |
AC - 3 |
86 |
107 |
110 |
130 |
170 |
325 |
305 |
355 |
460 |
|
AC - 4 |
49 |
61 |
69 |
80 |
90 |
118 |
135 |
145 |
170 |
||
Conventional thermal current |
250 |
250 |
250 |
275 |
315 |
400 |
500 |
700 |
1000 |
||
Power of controllable three - phase squirrel cage motor AC - 3 kW |
220V |
30 |
40 |
55 |
63 |
72 |
100 |
110 |
147 |
200 |
|
380V |
55 |
75 |
90 |
110 |
132 |
160 |
200 |
265 |
335 |
||
660V |
80 |
100 |
110 |
129 |
160 |
220 |
280 |
335 |
450 |
||
Operating frequency |
Electrical |
AC - 3 |
600 |
300 |
|||||||
AC - 4 |
150 |
||||||||||
Mechanical life |
2400 |
||||||||||
Electrical life |
AC - 3 |
60 |
50 |
30 |
20 |
||||||
AC - 4 |
15 |
8 |
5 |
||||||||
Mechanical life |
600 |
500 |
|||||||||
Fuse model |
RT16 - 160 |
RT16 - 250 |
RT16 - 250 |
RT16 - 315 |
RT16 - 315 |
RT16 - 400 |
RT16 - 500 |
RT16 - 630 |
RT16 - 630 |
||
Conform to standard |
GB/T14048.1 |
GB14048.4 |
IEC 60947 - 4 - 1 |
External And Installation Size
type |
Amax |
Bmax |
Cmax |
G |
H |
CJX2-115/152/170 |
158 |
120 |
132 |
90/110 |
130 |
CJX2-185/205 |
170 |
174 |
185 |
80 |
110/120 |
CJX2-225/245 |
170 |
198 |
185 |
80 |
110/120 |
CJX2-300/330 |
213 |
206 |
219 |
96 |
110/120 |
CJX2-410 |
213 |
206 |
219 |
80 |
170/180 |
CJX2-475 |
233 |
238 |
232 |
80 |
170/180 |
CJX2-620/630 |
309 |
304 |
255 |
181 |
180/190 |
Related Products
Related Knowledges
-
Faults and Handling of Single-phase Grounding in 10kV Distribution LinesCharacteristics and Detection Devices for Single-Phase Ground Faults1. Characteristics of Single-Phase Ground FaultsCentral Alarm Signals:The warning bell rings, and the indicator lamp labeled “Ground Fault on [X] kV Bus Section [Y]” illuminates. In systems with a Petersen coil (arc suppression coil) grounding the neutral point, the “Petersen Coil Operated” indicator also lights up.Insulation Monitoring Voltmeter Indications:The voltage of the faulted phase decreases (in01/30/2026 -
Neutral point grounding operation mode for 110kV～220kV power grid transformersThe arrangement of neutral point grounding operation modes for 110kV～220kV power grid transformers shall meet the insulation withstand requirements of transformer neutral points, and shall also strive to keep the zero-sequence impedance of substations basically unchanged, while ensuring that the zero-sequence comprehensive impedance at any short-circuit point in the system does not exceed three times the positive-sequence comprehensive impedance.For 220kV and 110kV transformers in new constructi01/29/2026 -
Why Do Substations Use Stones, Gravel, Pebbles, and Crushed Rock?Why Do Substations Use Stones, Gravel, Pebbles, and Crushed Rock?In substations, equipment such as power and distribution transformers, transmission lines, voltage transformers, current transformers, and disconnect switches all require grounding. Beyond grounding, we will now explore in depth why gravel and crushed stone are commonly used in substations. Though they appear ordinary, these stones play a critical safety and functional role.In substation grounding design—especially when multiple gr01/29/2026 -
Why Must a Transformer Core Be Grounded at Only One Point? Isn't Multi-Point Grounding More Reliable?Why Does the Transformer Core Need to Be Grounded?During operation, the transformer core, along with the metal structures, parts, and components that fix the core and windings, are all situated in a strong electric field. Under the influence of this electric field, they acquire a relatively high potential with respect to ground. If the core is not grounded, a potential difference will exist between the core and the grounded clamping structures and tank, which may lead to intermittent discharge.I01/29/2026 -
Understanding Transformer Neutral GroundingI. What is a Neutral Point?In transformers and generators, the neutral point is a specific point in the winding where the absolute voltage between this point and each external terminal is equal. In the diagram below, pointOrepresents the neutral point.II. Why Does the Neutral Point Need Grounding?The electrical connection method between the neutral point and earth in a three-phase AC power system is called theneutral grounding method. This grounding method directly affects:The safety, reliabilit01/29/2026 -
What’s the Difference Between Rectifier Transformers and Power Transformers?What is a Rectifier Transformer?"Power conversion" is a general term encompassing rectification, inversion, and frequency conversion, with rectification being the most widely used among them. Rectifier equipment converts input AC power into DC output through rectification and filtering. A rectifier transformer serves as the power supply transformer for such rectifier equipment. In industrial applications, most DC power supplies are obtained by combining a rectifier transformer with rectifier equ01/29/2026
