24kV CT68-24 Indoor Fixed Vacuum Circuit Breaker with Insulating Cylinder and Spring Operating Mechanism
The CT68-24 indoor high-voltage vacuum circuit breaker is a high-performance three-phase AC 50Hz power distribution device rated at 24kV. It features a reliable CT68 spring operating mechanism and a protective insulating cylinder for enhanced safety and durability. Designed for industrial and substation applications, it supports manual, AC, or DC operation, offering a long mechanical life and minimal maintenance for critical power protection
24kV CT68-24 Indoor Fixed Vacuum Circuit Breaker
Product Overview
The CT68-24 indoor fixed vacuum circuit breaker is a three-phase AC 50Hz indoor power distribution equipment with a rated voltage of 24kV. It is equipped with a high-performance CT68 spring operating mechanism that supports manual, AC, or DC operation. This model is specifically designed for controlling and protecting electrical equipment in transformer substations and industrial powerhouses, particularly in locations requiring frequent operations or high breaking capacity.
Key Features
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High Durability: Utilizes special contact materials and a vacuum interrupter to ensure long electrical endurance and high breaking capacity.
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Maintenance-Free Design: Features a simple, robust structure that requires minimal maintenance and carries no explosive danger.
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Versatile Protection: Ideal for protecting transport systems and switching loads in various power projects.
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Reliable Mechanism: The spring energy storage mechanism ensures rapid and stable opening/closing cycles.
Technical Specifications
| Item | Unit | Data |
| Rated Voltage | kV | 24 |
| Rated Frequency | Hz | 50 |
| Rated Current | A | 630 / 1250 / 1600 / 2000 / 2500 / 3150 / 4000 |
| Lightning Impulse Withstand Voltage (Peak) | kV | 125 |
| Rated Short-Circuit Breaking Current | kA | 20 / 25 / 31.5 / 40 |
| Rated Short-Circuit Duration | s | 4 |
| Secondary Circuit Power Frequency Withstand Voltage (1min) | V | 2000 |
Applying Ambient Conditions
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Altitude: Not exceeding 1000m above sea level.
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Ambient Temperature: Max +40°C, Min -25°C.
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Relative Humidity: Daily average <95%, Monthly average ≤90%.
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Earthquake Intensity: Up to Degree 9.
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Installation Site: No fire, no explosive danger, no serious corrosion, and no frequent intense vibration.
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