Ultra-Fast Opening • Long Lifespan • Easy Replacement • High Precision | 12kV Fast Vacuum Circuit Breaker

To help power systems achieve more energy-efficient, stable, and secure operations, Greegoo proudly launches the GRH-12F series 12kV Indoor Fast Vacuum Circuit Breaker. Leveraging core technical advantages, it provides an ultimate protection solution for terminal loads.

Ultra-Fast Opening for Millisecond Precision

Equipped with an advanced eddy current driving mechanism, the product achieves an opening time of less than 5ms. This industry-leading response speed quickly cuts off fault currents, maximizing the safety of terminal loads like transformers and motors while minimizing fault-related losses.

Longer Lifespan, Lower Wear

The innovative direct-rod drive structure significantly reduces mechanical wear. With a mechanical life of up to 30,000 cycles—far exceeding conventional circuit breakers—it ensures stable, reliable operation while reducing maintenance frequency and costs.

Seamless Replacement, Zero-Hassle Retrofitting

Designed to be fully interchangeable with standard medium-voltage circuit breakers, this product requires no changes to cabinet structures or additional modifications. Installation is simple and compatible with existing distribution systems, making upgrades efficient and cost-effective.

Precise and Stable Performance

The three-phase opening and closing asynchrony is kept within ≤2ms. High synchronization precision ensures smooth, deviation-free operation, comprehensively enhancing the safety of power distribution systems across various demanding environments.

Greegoo remains committed to technological innovation, providing high-quality equipment and efficient services for power systems. We sincerely invite partners from all sectors to join us in building a safe, reliable, and win-win future for the modern power grid.