MID-CONTINENT EMERGENCY POWER SUPPLY

The MD420 Emergency Power Supply System is designed to supply emergency power to the Mid-Continent Instrument 4200 and 4300 series attitude indicator when the aircraft main power buss has been de-energized. Additionally, the MD420 will supply emergency lighting power to two additional instruments such as an airspeed and altimeter. During normal aircraft operation, the MD420 will utilize the aircraft main power buss to recharge or maintain existing charge on the System. FEATURES • Designed to operate Mid-Continent Instruments standby attitude indicator for one hour after primary power loss • Simultaneously provides power for lighting to attitude indicator, airspeed, and altimeter • Automatic features include: -Arms at beginning of flight -Activates instantly upon power loss -Recharges during flight Turns off after flight • Utilizes sealed lead-acid cells for reliability and cold weather performance • Airspeed or optional electrical input provides automatic switching to emergency power without pilot intervention • Powers LED or incandescent lighting at 5, 14 or 28 VDC (three instruments) • Remote, mini-annunciation switch (with automatic dimming) controls test and manual operation • Lightweight 3.2 lbs. • Quality Mil-Spec connectors included • Field replaceable batteries • Designed and built in Wichita, Kansas, USA • One year limited warranty       SPECIFICATIONS Power Input:   10–32 VDC; 0.25A nominal, 4.0A max (14V) 2.0A max (28V) Power Output:   18 VDC, 0.5 Amps Certification:   FAA TSO C4c and RTCA DO-160E Weight:   3.1 lbs. (battery module) 0.2 lbs. (annunciator) Mating Connector:   25-pin female D-Sub (FD25F10JVL0 or equivalent) 9-pin female D-Sub (MD9F20JVL0 or equivalent) Annunciation Lighting:   LED backlighting, automatic internal dimming Battery Run Time:   60 minutes minimum (with full charge) Battery Charging:   Automatic recharging when main power is present Compatibility:   Supplies backup power to Mid-Continent Instruments Electric Attitude Indicator Model 4200 or 4300 and lighting power to two (2) additional instruments

Description Part No. Price Buy MID-CONT EMERG PWR SPPLY MD420 11-05540 $1895.00

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