Protection against short-circuit situations and power overload

DC breaker switches

Update over het DC breaker switch project

DC grids are an ideal solution to support the increased requirements of the onboard power system, but they cannot be safely deployed without the necessary protection. Fuses often aren’t the best option when it comes to safety and efficiency. Based on market input Astrol Electronic AG and KWx co-created a product range of 1kV DC breaker switches for marine applications. 

Technical DC breaker switch

Protection against short-circuit situations and power overload

The primary and most important function of our DC breaker switch technology is its ultra-fast interruption of high powers, thereby preventing the dramatic consequences of short circuit situations.

The Astrol DC breaker switch is based on modern and powerful semiconductor technology. It guarantees reliable protection against short-circuit currents in any part of the grid and allows the system integrator to achieve selectivity in the most flexible way. The 1kV version uses 3.3kV Insulated Gate Bipolar Transistors (IGBT) as well as diode modules and can handle nominal voltages up to 1.500V.

This video briefly explains the working and advantages of our DC breaker switch technology.

Why use Astrol Electronic AG’s DC breaker switches?

Safety by preventing arc forming Thanks to the ultra-fast switch-off times (μs) our solid-state DC breaker switches prevent arcing in case of short circuit-situations.

System-independent and modular design The DC breaker switch is a system-independent solution with a modular design and is easily integrated into new and existing systems.

Type-approved product: DNV-GL and Lloyds Register The DC breaker switch is a type-approved product (DNV-GL and Lloyds Register pending), which simplifies the process of getting a complete system certified. The certified bodies actively support the use of modern technologies.

Cost-efficient and green solution System integrators and naval architects who want to design sustainable DC systems benefit from our DC breaker switches which enable smarter solutions, leading to fuel savings, lower maintenance costs and a smaller environmental footprint.

Consultancy, technical knowledge and certified products Our experienced consultants and extensive DC solutions will make sure you’ll rely on professional support and the availability of certified DC breaker switches with unique features such as balancing switch and communication between DC breaker switches to achieve protection selectivity.

Enabling Innovative and SMART DC systems Do you want to design innovative, future-proof DC systems that allow the integration of modern energy sources? Our technology enables efficient topologies such as closed bus tie and ring systems.

“Our technology enables efficient topologies like closed bus tie and ring systems.”

A solution you can rely on!

  • Stand-alone solution for integration in any type of DC-grid
  • Autonomous switch-off capability
  • Fast switch off-time (within microseconds)
  • Modular system
  • Switch-off current <- 20kA
  • Bidirectional current flow
  • Liquid cooling
  • Internal self-diagnostics
  • Customized interface to overall controller
  • Optical (glass or POF) connections
  • Modbus-TCP, PROFINET, web-based, etc.
  • Wire bus system with CAN and RS485
  • 24V power supply with internal filter module

Product range

500A DC breaker switch

500A

1250A DC breaker switch

1250A

3000A DC breaker switch

3000A

Interested in the DC breaker range?

Please download our product brochure.

Do you want to design innovative, future-proof and sustainable DC systems?

This technology enables the design of sustainable DC systems with technologies that enable smarter solutions, leading to fuel savings, lower maintenance costs and a smaller environmental footprint.

Our Astrol DC breaker switches enable the design of innovative, future-proof DC systems (such as hybrid systems) that allow the integration of modern energy sources. Last but not least it enables the design of efficient topologies such as closed bus tie systems and zone protection.

The Astrol DC breaker switches are highly recommended for protecting onboard DC power systems.

If you’re challenged with designing complex, smart and future-proof DC systems, our experienced consultants can help. You will rely on professional support and the availability of certified DC breaker switches with unique features such as a balancing switch, and communication between DC breaker switches to achieve protection selectivity. With our maritime DC solutions and professional support, we’ll always make sure you’ll meet your special, electrical and mechanical requirements.

Let's talk about our DC solutions

✆ +31 (0)186 633 600

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