Lifessaver 3 Attitude Indicator 4300-611

The Lifesaver® 4300-611 is a 3-inch electric attitude indicator from Mid-Continent Instruments and Avionics. It combines a traditional symbolic-aircraft display and rotating roll dial with a self-contained rechargeable battery backup for emergency attitude reference following aircraft power loss.

The 4300-611 automatically transfers to standby power without pilot intervention and incorporates STBY PWR and battery-test annunciation, together with internal emergency lighting. It operates from 10–32 VDC electrical systems.

• Manufacturer part number: 4300-611
• Electric attitude indicator with rotating roll dial
• Traditional symbolic-aircraft display
• Self-contained rechargeable battery backup; manufacturer-stated minimum runtime of 60 minutes when fully charged and properly maintained
• Automatic switchover to standby battery power
• 10–32 VDC input
• Rear mounting for a standard approximately 80 mm round panel cut-out
• Single 4-pin connector installation; mating connector specified by the manufacturer as P/N 9015514 (MS3116F8-4S)
• Manufacturer-listed references: FAA TSO-C4c and RTCA DO-160D

Installation configuration, including panel tilt and lighting arrangement, should be verified against the applicable approved aircraft data and manufacturer documentation. The manufacturer currently identifies P/N 4300-611 as repair-only.

Documentation: Mid-Continent Lifesaver® 4300 Series product flier and 4300-6XX technical drawing.