Solid State Power Distribution Units (SSPDU)

The RT-SSPDU family consists of advanced Solid State Power Distribution Units (SSPDUs) built around SSPC boards from Power Device Corporation (PDC), USA.

Solid State Power Controllers provide significant benefits over conventional switching and protection technologies like Relays and Circuit Breakers since they overcome many challenges associated with electro-mechanical devices. This, combined with the relatively very high MTBF provided by SSPCs, weight and space reduction etc. make them attractive to high-reliability applications in Military Ground Vehicles, UAVs and Aircrafts.

Please read Performance Comparison: Solid State Power Controllers vs. Electromechanical Switching for a comprehensive comparison between the two technologies.

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Primarily designed for 28V DC power distribution, the RT-SSPDU series also supports configurations for 48V DC, 270V DC, and 110V AC.

The standard COTS module is 19-inch rack-mountable, with customizable form factors available to meet specific customer requirements. The SSPDUs are engineered to comply with key military standards, including MIL-STD-810G, MIL-STD-1275E, MIL-STD-704, and MIL-STD-461F, ensuring reliability in demanding environments.

Optional features include local switching control via a toggle switch matrix for selected output channels and a panel mounted Vacuum Fluorescent Display (VFD). However, the primary control method is remote communication through Ethernet, CANbus or RS485, offering seamless integration with external systems.

The SSPDUs come equipped with user-friendly GUI software compatible with Windows and Linux, enabling configuration, control, and monitoring. Additionally, a C/C++ communication library is provided to support custom applications, allowing customers to integrate the SSPDU into their unique operational frameworks.

  • 19-inch rack mountable form factor (customisable on request)
  • Switching and Protection for DC & AC loads
  • Configurable Trip Limits for individual channels
  • Support for channels of different capacities - 8A, 10A, 16A and 25A
  • Channel Paralleling for High Current Loads
  • Remote ON/OFF control of individual channels
  • Remote monitoring of Current, Voltage and Status of each channel
  • Power-On Built-In-Test (PBIT) and Continuous Built-In-Test (CBIT)
  • Communication Interfaces: Ethernet, CANbus, RS485
  • GUI Software for Configuration, Control and Monitoring
  • C/C++ Communication Library for Windows and Linux for custom application development
  • Optional Vacuum Flourescent Display and Emergency Switch on Front Panel
  • Optional Local/Remote override for channel control using toggle switches
  • D38999 Connectors on facia for reliable & robust connectivity
  • High Reliability
  • Very Rapid Short Circuit Deactivation Protects Wires, Loads, and SSPCs
  • I²T Overload Protection Avoids Nuisance Trips
  • Reduced Weight and Volume
  • Controlled Rise/Fall Time for EMI Reduction, Reduced Inrush Currents
  • Reduced Inductive Transients during Turn-Off
  • Low Power Dissipation
  • Provides Prognostics / Diagnostics Data
  • Enables Preventive and Automated Maintenance
  • Power Profiling and Analysis
  • Local switch bypass for critical channels

RT-SSPDU modules can be customized to meet your specific needs. Available customization options include:

  • Voltage Distribution: Choose from 28V DC, 48V DC, 270V DC, 110V AC, or a combination of these.
  • Output Channels: Specify the desired quantity to suit your application.
  • Connector Types: Select input and output connectors based on your preferences.
  • Interface Features: Add a local display, toggle switch matrix, or both.
  • Custom Software: Opt for tailored GUI-based application software.
  • Firmware Logic: Incorporate custom interlocks and control logic.

We are happy to collaborate and design a solution that aligns with your unique requirements.

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