MD41-24P(14) Relay Unit, Model MD41, 14V, PMA’d



MD41-24P(14) Relay Unit, Model MD41, 14V, PMA’d

MD41-24P(14) Relay Unit Description

The MD41-24P(14) is a bulkhead mounted remote transfer relay unit specifically designed for switching a CDI or HSI Indicator between two aircraft radio navigation systems. The remote switching unit is designed to be used with the companion MD41-1XXX series Annunciation Control Unit (ACU). This pertains to GPS systems where the user desires to share a common CDI or HSI between an existing NAV system and a GPS system

The 24 pole unit features eight relay pairs consisting of 3 poles per relay pair. Each relay pair can be activated individually by either voltage or ground keying or as a group by ground keying.


  • Mounting: Bulkhead
  • Width: 2.86 Inches
  • Height: 1.52 Inches
  • Also, Depth: 2.60 Inch
  • Weight: 0.75 lb
  • TSO Compliance: TSO C129
  • Applicable Documents: RTCA DO-160C, and also DO-208
  • Operating Temperature Range: -55 to +70°C
  • Humidity: 95% Non-Condensin
  • Altitude Range: 0 to 55,000
  • Vibration: Cat. M and also N
  • Lastly, Operational Shock: Rigid Mounting, 6 G Operational (15 G Crash Safe)

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