Power Management

Emergency Power Supply Systems

The Extant Aerospace Emergency Power Supply (PS) products provide continuous standby power for self-contained gyro horizons and essential flight instruments.

The system automatically switches to battery power during aircraft power failures, maintaining uninterrupted instrument operation, and is built to withstand demanding requirements including thermal shock and high charge/discharge cycles.

Product IDs

PS-834PS-835PS-841PS-850PS-855

Key Platforms

Sikorsky UH-60S-92Pilatus PC12Embraer ERJ E1/E2Beechcraft King AirAirbus C295

Primary P/Ns

501-1228-04, 501-1228-03, 501-1318-01, 501-1682-01, 501-1712-01, 501-1712-02

Full P/N List

All Part Numbers (PDF) →