CKG3-12 Series 12kV 5-Pole High Voltage AC Vacuum Contactor – 630A Magnetic Switch for Motor Control and Circuit Protection
The CKG3-12 Series 5-Pole Vacuum Contactor is a specialized high-voltage solution designed for 12kV power networks operating at AC 50-60Hz. Featuring a unique 5-pole configuration, this unit is optimized for the frequent starting and control of AC motors, offering a superior and more flexible alternative to traditional vacuum circuit breakers when paired with fuses and protection devices. Engineered for long-distance connection and disconnection, it provides exceptional reliability and arc-extinguishing performance for mining, industrial plants, and complex power distribution systems.
CKG3-12 Series 12kV 5-Pole High Voltage AC Vacuum Contactor (160A – 630A)
Product Overview
The CKG3-12 Series is a specialized high-voltage AC vacuum contactor designed for 12kV power networks operating at AC 50-60Hz. This series is uniquely engineered with a 5-pole configuration, making it an exceptionally flexible choice for the frequent starting and control of AC motors. It serves as a superior, high-reliability alternative to traditional vacuum circuit breakers, especially when integrated with fuses and various protection apparatus.
Core Advantages
-
Unique 5-Pole Design: The five-pole architecture provides enhanced circuit control flexibility, allowing for complex switching configurations in high-voltage industrial systems.
-
High Arc Extinguishing Capacity: Utilizes advanced vacuum interrupters to ensure rapid and safe arc extinction without external arcing, enhancing overall system safety.
-
Exceptional Service Life: Designed for longevity with a mechanical life of up to 1,000,000 operations, significantly extending maintenance intervals.
-
Compact & Lightweight: Despite its 5-pole capacity, the unit maintains a small volume and light weight for easier integration into electrical panels.
-
Robust Environmental Adaptability: Operates reliably in temperatures ranging from -10°C to +40°C and at altitudes up to 1000m (standard type) or 4000m (plateau type).
Technical Specifications
| Item | Unit | CKG3-160 | CKG3-250 | CKG3-400 | CKG3-630 |
| Rated Main Loop Voltage | kV | 12 | 12 | 12 | 12 |
| Rated Working Current | A | 160 | 250 | 400 | 630 |
| Mechanical Life | Times | 1,000,000 | 1,000,000 | 1,000,000 | 1,000,000 |
| Joint Capacity | A/100 times | 1600 | 2500 | 4000 | 6300 |
| On-Off Capability | A/10 times | 1280 | 2000 | 3200 | 5000 |
| Power Freq. Withstand (Main) | kV | 32 | 32 | 32 | 32 |
| Contact Opening Distance | mm | 5 ± 0.5 | 5 ± 0.5 | 5 ± 0.5 | 5 ± 0.5 |
Typical Applications
-
Industrial AC Motor Control: Specifically for high-frequency starting and remote control.
-
Long-Distance Line Management: Connecting and disconnecting high-voltage lines efficiently.
-
Complex Protection Systems: Ideal replacement for breakers when used with high-voltage fuses.
-
High-Altitude Power Projects: Plateau-type configurations available for use up to 4000m.
Selection details for CKG3-12 Series 12kV 5-Pole High Voltage AC Vacuum Contactor
To confirm the required vacuum contactor configuration for your project, include:
- Operating voltage, rated current, pole arrangement and load type
- Coil/control voltage, switching duty and required operating frequency
- Mounting dimensions, wiring diagram and protection coordination
Drawings and quotation requirements
Send the model reference, application, quantity and destination country together with the relevant drawing or existing equipment information. Confirm the selected configuration against a model-specific drawing and ratings sheet before ordering; request the applicable test documentation for your project requirements.
Request model confirmation and a technical quotation · Compare related Vacuum Contactor / Medium/High Voltage Vacuum Contactor.
Send Us Your Inquiry
We are always ready to assist you! Contact our team for expert support and personalized solutions.