Product Short Description
Product Introduction
The GE CK11CE300 is a 3-pole low-voltage AC contactor designed for industrial motor control, power distribution, and electrical switching applications. It integrates an electronic coil module for reliable operation across wide voltage ranges, delivering 300A current handling under AC-3 load conditions with a maximum system voltage of 690V AC. The contactor features a modular design supporting auxiliary contacts and surge protection accessories, and operates in harsh environments with a temperature range of -40°C to +70°C. It serves as a core switching component for 3-phase systems, controlling motors, heaters, capacitors, and other heavy loads with high reliability and minimal maintenance downtime. It meets global safety standards, ensuring compliance and performance in industrial automation, energy, and infrastructure projects.
Description
Technical Specifications
| Parameter | Details |
|---|---|
| Brand | GE Industrial Solutions (General Electric) |
| Model | CK11CE300 |
| Product Type | 3-Pole Low-Voltage AC Contactor (CK Series, Electronic Coil) |
| Size Category | Size 6 (CK11CE series) |
| Rated Current (Ie) – AC-3 | 300A (at 400V AC, 50/60Hz); 250A (at 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 modules |
| Coil Voltage Range | 24–500V AC/DC (electronic coil, 4 coil types cover full range) |
| Coil Frequency | 50/60Hz (AC) or DC (universal voltage compatibility) |
| 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, CCC compliant |
| Weight | Approx. 13 kg |
| Dimensions | 285 mm × 135 mm × 160 mm (height × width × depth) |
| Transient Protection | Built-in transient voltage suppressor (TVS) for coil overvoltage protection |
Functional Features
- Electronic Coil Technology: Prevents chattering and coil burnout in weak networks via voltage protection software, ensuring stable operation in unstable power grids.
- Wide Voltage Compatibility: Covers 24V–500V AC/DC with 4 coil types, reducing inventory complexity for global OEMs.
- Enhanced Contact Performance: Increased contact pressure lowers per-phase resistance and thermal load, extending contact life and reducing energy loss.
- Harsh Environment Operation: Operates from -40°C to +70°C, with anti-vibration design suitable for wind, marine, and transportation applications.
- Transient Voltage Suppression: Built-in TVS protects the coil from voltage spikes and surges during switching.
- Modular Expandability: Add-on auxiliary contacts, time-delay modules, and surge suppressors enable custom functionality without changing the base unit.
- High Mechanical & Electrical Life: ≥10 million mechanical and ≥1 million electrical operations minimize replacement frequency and downtime.
- Easy Retrofit: Drop-in replacement for legacy CK contactors with no dimensional changes, simplifying upgrades.
- Safety Compliance: Complies with UL, IEC, CE, and CCC standards; front face IP20 protection prevents accidental contact.
- Low Noise Operation: Reduced acoustic emissions in dusty or corrosive environments, improving workplace conditions.
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.
- Power Distribution: Switches feeder circuits in low-voltage switchgear, managing load distribution in factories and commercial buildings.
- Heating & Ventilation (HVAC): Controls large electric heaters, fan coils, and chiller compressors in industrial and commercial HVAC systems.
- Capacitor & Reactor Banks: Manages switching of power factor correction capacitors and harmonic filters in substations and industrial plants.
- Renewable Energy Systems: Switches inverters, transformers, and battery banks in solar farms and wind turbines, with robust performance in high-vibration environments.
- Marine & Offshore: Controls shipboard power distribution, propulsion systems, and auxiliary equipment, withstanding salt spray and temperature extremes.
- Oil & Gas: Operates in upstream and downstream facilities, controlling pumps, compressors, and process heaters in hazardous areas.
- Railway & Transportation: Manages traction motor control and auxiliary power in locomotives and rail vehicles, supporting wide voltage and vibration tolerance.
- Medium Voltage (MV) Switchgear: Acts as a low-voltage control contactor for MV circuit breakers and tap changers.
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