The CKJ5 series indoor low-voltage high-current AC vacuum contactor is a heavy-duty switching component designed for power systems rated up to 1140V AC 50/60Hz. Engineered for remote making and breaking of electrical circuits, this vertical-structure contactor is highly optimized for frequent starting and control of inductive and capacitive loads, including AC motors, transformers, and capacitor banks. It is widely utilized in heavy industries such as mining, metallurgy, petroleum, chemical processing, and power distribution panels (including explosion-proof electromagnetic starters).
Technical Parameters
Unit
Specifications
Main circuit rated voltage
kV
1.14
Main circuit rated current
A
1000
1250
1600
Main circuit making capacity
A/100times
6000
6000
6000
Main circuit breaking capacity
A/10times
4800
5000
5000
Limit breaking capacity
A/ 3 times
6000
6000
6000
Electrical life AC3
Ten-thousand times
20
Electrical life AC4
Ten-thousand times
2
Mechanical life time
Ten-thousand times
100
Rated operating frequency AC3
times/h
100
Rated operating frequency AC4
times/h
120
Contact opening
mm
3±0.5
Over travel
mm
≥1.3
Packaging & Delivery
Package Size
40.00cm * 35.00cm * 25.00cm
Gross Weight
20.000kg
Transport Package
Carton and Pallet
Frequently Asked Questions
What are the primary applications for the CKJ5-1600A vacuum contactor?
The CKJ5 series is specifically designed for heavy-duty industrial use in mining switchgear, metallurgy, petroleum processing, and chemical industries. It is ideal for frequent starting and control of AC motors, transformers, and capacitor banks.
What is the rated mechanical and electrical life of this unit?
This model features a high mechanical life of 3,000,000 operations. The electrical life varies by category, with AC3 rated at 200,000 times and AC4 rated at 20,000 times.
Which control voltages are available for the CKJ5 series?
The CKJ5 contactor supports multiple control voltage options including 110V, 220V, and 380V to suit various power system requirements.
Can this contactor be used in explosion-proof environments?
Yes, it is widely utilized within explosion-proof electromagnetic starters and explosion-proof enclosures commonly found in mining and chemical processing plants.
What is the advantage of using a vacuum interrupter for arc quenching?
The vacuum interrupter provides superior arc quenching media, ensuring fast circuit breaking, reduced wear on contacts, and maintenance-free operation compared to traditional air-break contactors.
What are the dimensions and weight for shipping purposes?
The product is packed in cartons and pallets with a package size of 40x35x25 cm and a gross weight of approximately 20.00kg.