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MCI 4300-207 - Attitude Indicator Electric, 10–32 VDC, 10°, Diamond, Delta

Part #: 4300-207
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The Lifesaver 4300 Series is an electric attitude indicator for primary and backup use in fixed-wing and helicopter applications. It boasts an impressive 7,500-hour lifespan, more than double most electric gyros. A key feature is its self-contained battery, which provides one hour of emergency power*, ensuring continued operation even if the main power source fails. The 4300-6XX automatically switches to battery backup without pilot intervention. It uses a single 4-pin connector for easy installation and operates on a wide range of voltages (10-32 VDC). Additional benefits include built-in annunciators, internal emergency lighting, versions to match existing instrument displays, field-replaceable lighting, anti-reflective glass for better visibility, and FAA/RTCA certifications for safety and vibration resistance. The Lifesaver is built in the USA and has a one-year warranty for peace of mind.

*Note: Battery performance may depend on factors like charge level and maintenance.
General Information
Part #4300-207
ManufacturerMid-Continent Instrument & Avionics
Specifications
AnnunciatorsSTBY PWR (standby power mode), TEST (battery test — red/green)
BatteryRechargeable, sealed lead-acid cells, Life: 3 years in average aircraft environment, Run time: 60 minutes minimum when fully charged and properly maintained
CertificationFAA TSO-C4c, RTCA DO-160D
GlassSpecial HEA anti-reflective coating
Length6.6 inches without battery, 8.6 inches with battery
LightingField-replaceable tray wired through main connector
Mating ConnectorMid-Continent P/N 9015514 (MS3116F8–4S)
MountingRear mount in standard 3 1/8” round panel cutout
MTBF7,500 hrs
Power Input10–32 VDC, 1400 mA start, 600 mA max at 14 VDC input, 700 mA start, 300 mA max at 28 VDC input
Temperature Range–30°C to +70°C (–22°F to +158°F)
Weight2.7 lbs without battery, 3.7 lbs with battery

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AIRCRAFT COMPATIBILITY

Compatible Aircraft*
*This list is for general reference only and may not be entirely accurate for all aircraft. Please confirm all equipment meets the requirements of your aircraft with the owners/maintenance manuals prior to purchasing or using with your aircraft.

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