Precision
HV Control Engineering.
1500V DC Rack Control Units (RCU) tailored for utility-scale safety. Zero compromise on arc flash protection.
The High Voltage Reality.
It's not just a switchbox. It's the critical barrier between a gigawatt-hour of energy and the grid. We engineer for the millisecond that matters.
Inrush is Violent
Connecting a 1500V battery string to a capacitive DC bus creates massive inrush currents. Our multi-stage pre-charge logic eliminates contactor welding risks, ensuring 20-year operational life.
Arc Flash Containment
DC arcs don't self-extinguish. We separate HV and LV domains mechanically. Gland plates are sealed, and active thermal management prevents heat buildup that could trigger insulation failure.
Thermal Dissipation
Contactors generate significant heat at full load (500A+). Passive cooling isn't enough in a container at 40°C ambient. We use CFD-optimized layouts to ensure components stay within safe operating areas.
Layered Protection.
A robust protection strategy requires physical and logical separation. We architect RCUs as three distinct, interlocked layers.
Power Stage
- Main Contactors (+/-)
- Pre-charge Circuitry
- HV Fuses (Class aR) protection
Control Logic
- Safety Loop (Hardware Interlock)
- Door Sensors & E-Stop
- IMD (Iso-Monitoring) integration
Mechanical Base
- Gland Plate Design
- Verified Busbar Routing
- Service Access Hatches
Certified
Hardware.
We deliver production-ready documentation that passes audit. CAD files, E-Plan schematics, and BOMs that adhere to global low-voltage and high-voltage directives.
Ready to build hardware?
Send us your single line diagram. We'll return a preliminary 3D enclosure concept and component list.