Products

Power

Power

Mid-Continent Instruments and Avionics Item MD835-1

Emergency Power Supply

Features

  • The emergency power supply automatically provides 24.5 VDC power for critical or standby equipment in the event of aircraft power failure
  • 4.5 amp-hour advanced Nanophosphate® lithium ion battery with A123 cell chemistry
  • Lightweight 4.8 lb. – 8 lb. less than legacy lead-acid designs
  • Input voltage: 24–32 VDC
  • Direct replacement for PS-835/PS-855 or forward-fit installations
  • Minimal scheduled maintenance required:
  • 2-year capacity check
  • 10-year replacement life
  • Dimensions (approx.): 3.1” H x 12.6” L x 2.3” W
  • Mounts in standard 1/4 ATR rack
  • Maintains full charge by recharging during normal flight operations
  • Remote-mounted self-test switch required
  • FAA TSO C179 certified
  • Part 23 AML STC certified
  • Qualified to RTCA/DO-160F and RTCA/DO-311
  • Designed and manufactured in Wichita, Kansas, USA
  • Two-year limited warranty

Specifications

Capacity - 4.5 amp-hour battery nominal

Input - 24–32 VDC, 5.0 amps maximum

Output - 24.5 VDC nominal, 20 amps maximum

Weight - 4.8 lb. — 8 pounds lighter than legacy lead-acid designs

Dimensions - 3.1"H x 12.6"L x 2.3"W (approximate)

Life Expectancy - 10 years

Protection - Field-replaceable fuse

Mating Connector - DPXB13-33S-0001

Rack Mount Installation - 1/4 ATR rack

Self-test Switch - Remote-mounted self-test switch required

Case - Anodize aluminum, blue

Certification

FAA TSO C179 
Part 23 AML STC 
Qualified to RTCA/DO-160F and RTCA/DO-311