Product Short Description
Product Introduction
The GE CK12BE300 24 is a 3-pole low-voltage AC contactor engineered for industrial 3-phase power switching and motor control. It has a 24V AC coil, handles 300A under AC-3 load conditions, and supports a maximum system voltage of 690V AC. The contactor incorporates an electromagnetic coil design with robust arc suppression, and a modular structure compatible with auxiliary contacts, surge protection, and overload relay accessories. It operates reliably in temperatures from -40°C to +70°C and features a panel – mount design with IP20 front – face protection. It is a core switching component for industrial automation, controlling motors, heaters, and capacitors with high mechanical and electrical durability, meeting global safety and performance standards for seamless integration into industrial power systems.
Description
Technical Specifications
| Parameter | Details |
|---|---|
| Brand | GE Industrial Solutions (General Electric) |
| Model | CK12BE300 24 |
| Product Type | 3-Pole Low-Voltage AC Contactor (CK Series, Electromagnetic Coil) |
| Size Category | Size 6 (CK12BE series) |
| Rated Current (Ie) – AC-3 | 300A (400V AC, 50/60Hz); 250A (690V AC) |
| Max System Voltage (Ue) | 690V AC |
| Insulation Voltage (Ui) | 1000V AC |
| Poles | 3 poles, 3NO (normally open) main contacts |
| Auxiliary Contacts | 1NO+1NC (standard); expandable to 4NO+4NC via add-on auxiliary modules |
| Coil Type | 24V AC, 50/60Hz electromagnetic coil |
| Coil Power Consumption | 180VA (inrush); 25VA (holding) |
| Mechanical Life | ≥10,000,000 operations |
| Electrical Life | ≥1,000,000 operations (AC-3, full load) |
| Operating Temperature | -40°C to +70°C |
| Storage Temperature | -55°C to +85°C |
| Installation Type | Panel mount (IP20 front face protection) |
| Altitude Rating | Up to 3000m without derating |
| Vibration Resistance | Compliant with IEC 60068-2-6 (10–500Hz, 10g peak) |
| Certifications | UL 508, IEC 60947-4-1, CE, CSA compliant |
| Weight | Approx. 12.8 kg |
| Dimensions | 285 mm × 135 mm × 160 mm (height × width × depth) |
| Arc Chute | Non – metallic arc chute for efficient arc quenching and extended contact life |
| Terminal Type | Screw – clamp terminals for 16–70 mm² copper/aluminum cables |
Functional Features
- 24V AC Coil Operation: Delivers consistent pulling and holding force for reliable switching in 24V control circuits, ideal for industrial automation systems with low – voltage control logic.
- High Current & Voltage Handling: Manages 300A at 400V AC (AC-3) and 690V AC max system voltage, suitable for medium – power motor and load control.
- Efficient Arc Suppression: The non – metallic arc chute quenches arcs quickly during switching, reducing contact wear and extending contact life.
- Modular Expandability: Add – on auxiliary contacts, time – delay modules, and surge suppressors can be integrated without altering the base unit, enabling custom control logic.
- Robust Environmental Performance: Operates from -40°C to +70°C and withstands high vibration, making it suitable for wind, marine, and heavy – industry applications.
- Long Mechanical & Electrical Life: ≥10 million mechanical and ≥1 million electrical operations minimize replacement and maintenance downtime.
- Easy Retrofit: Directly replaces legacy CK contactors without dimensional changes, simplifying system upgrades.
- Safety Compliance: Conforms to UL, IEC, CE, and CSA standards; IP20 front – face protection prevents accidental contact with live parts.
- Secure Terminal Connections: Screw – clamp terminals ensure stable connections for 16–70 mm² cables, reducing resistance and thermal losses.
- Compatibility with Overload Relays: Works seamlessly with GE CK series overload relays for integrated motor protection against overload and phase loss.
Application Scenarios
- Industrial Motor Control: Controls 3-phase induction motors in pumps, fans, compressors, and conveyors, supporting direct – on – line (DOL) and star – delta starting methods.
- Power Distribution: Switches feeder circuits in low – voltage switchgear, distributing power in factories, data centers, and commercial buildings.
- Heating & Ventilation (HVAC): Controls large electric heaters, fan coils, and chiller compressors in industrial and commercial HVAC systems.
- Capacitor Bank Control: Switches power factor correction capacitors in substations and industrial plants to maintain grid efficiency.
- Renewable Energy Systems: Manages inverters and auxiliary loads in solar farms and wind turbines, enduring harsh outdoor and high – vibration conditions.
- Marine & Offshore Power: Controls shipboard power distribution and propulsion systems, withstanding salt spray and extreme temperature fluctuations.
- Oil & Gas Industry: Operates in upstream and downstream facilities, controlling pumps, compressors, and process heaters in hazardous and demanding environments.
- Railway Traction Power: Controls traction motor circuits and auxiliary systems in locomotives and rail transit, adapting to 24V control systems.
- Building Automation: Integrates with BMS to switch heavy electrical loads in large commercial and industrial buildings, ensuring energy – efficient operation.
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