High-performance protection solutions for next-generation DC infrastructures
Modern data centers are increasingly adopting DC-based power distribution architectures to enhance efficiency, scalability, and the integration of renewable energy sources and battery storage systems. Astrol’s solid-state DC breakers are specifically developed to protect these advanced power networks, providing ultra-fast interruption, exceptional reliability, and seamless integration into complex systems.
Our breakers are designed for 800 VDC and 1500 VDC applications, with 400 VDC versions available on request. They support nominal currents up to 7.5 kA, enabling safe, selective, and reliable protection for high-power data center environments.
Ultra-fast fault interruption
Thanks to solid-state technology, faults can be interrupted within microseconds, significantly limiting fault energy and safeguarding critical infrastructure and equipment.
Built for advanced DC architectures
Our breakers are engineered specifically for modern data center power topologies, including:
- Solid-state transformer (SST)-based systems
- Common DC bus architectures (such as 800 VDC systems)
- Battery Energy Storage System (BESS) integration
Scalable and modular platform design
The modular design of the power stages allows flexible system configurations to meet a wide range of voltage and current requirements, supporting nominal currents up to 7.5 kA.
Improved system selectivity
Accurate control combined with ultra-fast switching provides full selectivity, ensuring that only the affected section is disconnected while the remainder of the system continues operating—maximizing uptime and availability.
Bidirectional functionality
The breakers support both unidirectional and bidirectional current flow and interruption capability, allowing flexible implementation across various positions within the DC distribution network.
Electrical characteristics – solid-state DC breaker range for data centers
| Nominal Voltage | Nominal Current | Cooling Type |
|---|---|---|
| 400 VDC | More information coming soon | Water / Air |
| 800 VDC | 800 A | Air |
| 800 VDC | 2.5 kA | Water |
| 800 VDC | 5 kA | Water |
| 800 VDC | 7.5 kA | Water |
| 1000 VDC | More information coming soon | T.B.D. |
| 1500 VDC | 3 kA | Water |
| 1500 VDC | 4 kA | Water |
| 1500 VDC | 5 kA | Water |
| 3000 VDC | More information coming soon | T.B.D. |
Architecture and design concept
The system is built around a modular platform architecture that combines:
- High-power semiconductor switching modules
- An integrated control and communication unit
- Auxiliary systems, including pre-charge functionality and cooling interfaces
To achieve higher current ratings up to 7.5 kA, multiple 2.5 kA power modules can be combined, providing both flexibility and simplified maintenance.
