Overhauled Emergency Power Supply Units Available

Overhauled Emergency Power Supply Units
Part NumberModel
501-1228-04C
501-1228-03D
501-1288-06F

The  L-3 Avionics PS-835 is a fully-enclosed power supply that provides continuous standby power for self-contained gyro horizons and essential flight instruments. The PS-835 Emergency Power supply is designed as a 24 VDC (nominal) emergency power source for prolonging the operation of a connected standby attitude indicator when the aircraft’s main power bus has de-energized. The is designed to easily fit into the existing avionics shelf. 

Specifications for the PS-835C Emergency Power Supply Unit

Dimensions7.626″H x 14.114″ L x 2.282″ WWeight8lbs
Input Voltage+28-30VdcOutput Voltage+24 Vdc (nominal)
Altitude55,000 ftTemperature-55C to +70C
TSONone ExistsCell Power2.5 Ah

Specifications for the PS-835D Emergency Power Supply Unit

Dimensions7.626″H x 14.114″ L x 2.282″ WWeight13lbs
Input Voltage+28-30VdcOutput Voltage+24 Vdc (nominal)
Altitude55,000 ftTemperature-55C to +70C
TSONone ExistsCell Power5.0 Ah

Specifications for the PS-835E Emergency Power Supply Unit

Dimensions7.626″H x 14.114″ L x 2.282″ WWeight13lbs
Input Voltage+28-30VdcOutput Voltage+24 Vdc (nominal)
Altitude55,000 ftTemperature-55C to +70C
TSONone ExistsCell Power5.0 Ah

Our Program

  • Competitively Priced
  • Available now for true flat-rate exchange
  • Unit comes fully top charged
  • In stock
  • Same-day shipping
  • Located in all our global warehouses for quick delivery
  • 8130 dual release certificates

Contact C&L Aviation Group

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