AC Vacuum Contactor CKJ5
The CKJ5 vacuum contactor is designed to connect and disconnect circuits remotely. It facilitates frequent starting and control of AC motors in AC 50Hz, 1140V power systems up to 660A.
Technical Specifications
Overview
CKJ5 Series AC Vacuum Contactor
The CKJ5 series is a high-performance AC low-voltage electromagnetic vacuum contactor designed for reliable switching in industrial power transmission and distribution systems. Engineered with advanced vacuum interrupters, it ensures efficient arc quenching and extended operational life in demanding environments. This contactor is ideal for motor control, capacitor switching, and general power distribution, featuring a robust, modular design for easy installation and maintenance.
Electrical Ratings
Rated Operation Current
250 A
Current
400 A
Current
600 A
Current
- Rated Operation Voltage
- 380V660V1140V
- Control Circuit Voltage
- 36V127V220V380V
Performance & Durability
Rated Operation Frequency
| Category | Frequency |
|---|---|
| AC3 | 300 T/h |
| AC4 | 120 T/h |
| Short time | 20s |
- Electrical Life
- 360,000 operations (AC3)
- Mechanical Life
- 3,000,000 operations
Technical Specifications
Limited Breaking Capacity
- 4500A (for 250A/400A models)
- 6000A (for 600A models)
- Auxiliary Contacts
- 3NO, 3NC
- Making-Breaking Capacity
- Making 10Ie, Breaking 8Ie
