CKJ5-125A 1140V AC Vacuum Contactor Wholesale Price
The CKJ5-125A Vacuum AC Contactor is engineered for industrial and power distribution use, providing reliable switching of high-current AC circuits. With a rated current of 125A and a rated working/insulation voltage of 1140V, it is suitable for frequent operation, motor control, and heavy-load applications in factories, power plants, and large equipment systems.
Featuring vacuum interruption technology, this contactor reduces arc-related wear and extends operational life compared to traditional electromechanical contactors. Its three-pole design ensures complete three-phase circuit control, and the availability of multiple coil voltages (110V/220V/380V) makes it flexible for different control panels and automation needs.
CKJ5 series contactors are compatible with a variety of protective devices such as thermal overload relays, allowing them to be integrated into full motor starter arrangements. The robust construction and excellent electrical performance make it ideal for industrial automation, HVAC systems, motor starters, and other high-demand electrical systems
Product Features
125A Rated Current - Designed for high current switching in AC power systems.
Vacuum Interruption Technology - Provides arc-free contacts for superior reliability and long service life.
110V/220V/380V Coil Options - Flexible control coil voltages suit a wide range of control systems.
3-Pole Configuration - Ideal for three-phase motor starters and industrial power distribution.
1140V Rated Working & Insulation Voltage - High voltage capability ensures strong performance in heavy-duty applications.
Compatibility with Protection Devices - Works with thermal relays and electronic protections for full system safety.
Technical parameters
| Main circuit rated voltage |
kV |
1.14 |
| Main circuit rated current |
A |
80 |
125 |
160 |
250 |
400 |
630 |
| Main circuit making capacity |
A/100times |
800 |
1250 |
1600 |
2500 |
4000 |
6300 |
| Main circuit breaking capacity |
A/100times |
1000 |
1000 |
1000 |
2000 |
3200 |
4800 |
| Electrical life AC3 |
Ten-thousand times |
60 |
| Electrical life AC4 |
Ten-thousand times |
6 |
| Mechanical life time |
Ten-thousand times |
300 |
| Rated operating frequency AC3 |
times/h |
600 |
| Rated operating frequency AC4 |
times/h |
120 |
| Short-time operatin |
times/h |
2000 |
| Clearance between open contacts |
mm |
1.8±0.1 |
2.0±0.1 |
| Over travel |
mm |
1.0±0.1 |
1.0±0.1 |
1.0±0.1 |
| Contact circuit P/F. withstand voltage |
kV |
2 |
| Closing time |
ms |
≤100 |
| Opening time |
ms |
≤80 |
FAQ
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