DC Secondary Power Distribution

Secondary Power Distribution Unit

The DC Secondary Power Distribution Unit (SPDU) leverages digital communications and the use of solid-state technology to develop a highly configurable and flexible power distribution system. The SPDU is designed to be used in multiple locations throughout the aircraft and employs the latest design features to address the most current aircraft safety and performance requirements. AMETEK’s SPDUs are available in single channel and dual channel. The dual channel SPDU is capable of switching up to 288 Amp of 28V DC current and controlling up to 54 independent channels using Solid State Power Controllers (SSPCs). The single channel SPDU contains identical components to those found inside of the dual channel SPDU, including all the software and has 27 channels.

Features and Benefits:

  • Dual Redundant data bus and control
  • Advanced load management
  • Output controls for speed control, lighting control, heat control, flashing lights, sound – UTILITY CONTROL
  • Attractive solution based on weight, space, and performance advantages
  • Discrete Inputs for load control and data acquisition
  • Customization by uploading tables for easy adaptation to a variety of aircraft configurations
  • Higher power: 288 or 144 Amps
  • Outputs: 54 channels or 27 channels