High-performance protection for next-generation DC architectures
Modern data centers are rapidly transitioning toward DC-based power distribution to improve efficiency, scalability, and integration of renewable energy and battery storage. Our Astrol solid-state DC breakers are purpose-built to protect these advanced infrastructures, delivering ultra-fast interruption, high reliability, and seamless system integration.
Designed for 800V, and 1500V DC systems (400V upon request), our breakers support nominal currents up to 7.5 kA, enabling safe and selective protection across high-power data center applications.
Ultra-fast fault interruption
Solid-state technology enables fault interruption whitin microseconds, significantly reducing fault energy and protecting critical equipment.
Optimized for DC architectures
Engineered specifically for modern data center topologies, including:
- Solid-state transformer (SST)-based architectures
- Common DC bus systems (e.g., 800V DC)
- Battery energy storage system (BESS) integration
High scalability and modular design
Modular power stages allow flexible configuration to meet varying current and voltage requirements, up to 7.5 kA nominal.
Enhanced system selectivity
Precise control and fast switching enable full selectivity, ensuring only the faulted section is isolated—maximizing uptime.
Bidirectional operation
Supports both unidirectional and bidirectional current flow and breaking capability, enabling flexible deployment across different positions in the power distribution system.
Electrical Characteristics solid-state DC breakers range for data centers
| Nominal Voltage | Nominal Current | Cooling Type |
|---|---|---|
| 400 VDC | More info 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 info soon | T.B.D. |
| 1500 VDC | 3 kA | Water |
| 1500 VDC | 4 kA | Water |
| 1500 VDC | 5 kA | Water |
| 3000 VDC | More info soon | T.B.D. |
- Breaking Technology:
- Solid-state semiconductor-based (IGBT / future SiC)
- Current Direction:
- Unidirectional or bidirectional (application dependent)
Architecture & Design Concept
The system is based on a modular platform architecture, combining:
- High-power semiconductor switching modules
- Integrated control and communication unit
- Auxiliary systems (pre-charge, cooling interface)
- Multiple 2.5 kA power modules are combined to achieve higher current ratings up to 7.5 kA, ensuring flexibility and easy maintenance.
Typical Applications
- Data center DC distribution systems (400V / 800V / 1500V)
- Bus-tie protection between multiple SSTs
- Battery energy storage system (BESS) protection
- Feeder and branch circuit protection
- High-power rectifier and inverter interfaces
