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D B ASSEMBLY APU POWER SUPPLY SERIES R-14/28-25

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APU Power Supply OnlyAPU Power Supply w/ Piper PlugAPU Power Supply Only (European)APU Power Supply (European) w/ Piper Plug
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Overview

The D B Assembly, Inc R-14/28-25 APU is designed to operate avionics equipment in private and commercial aircraft.

The R-14/28-25 will output 14 or 28 volts DC at up to 25 amperes. The voltage is filtered to eliminate hum and is regulated against input AC line voltage changes.

The output DC voltage and current are displayed on front panel meters. The DC is also protected by a circuit breaker.

Selection of output voltage is by a front panel switch, which is protected by a switch guard. Closing the guard forces the switch to the 14-volt position.

The RB-14/28-25 plugs directly into the APU receptacle on the aircraft. It comes equipped with either the standard three-prong connector or the Piper coaxial connector. Both connectors can be supplied, optionally at a slight extra cost. DC cable length is 8'.

The AC line cord is normally 8' in length, but special lengths up to 50' are available.

The housing is steel, powder coated in red, for optimum flight line safety. Rubber feet and handle are included.

Specifications

  • AC Line Voltage: 115v, 60 Hz.
  • AC Current Drain: 7 amperes maximum
  • DC Output: 14 or 28 volts, up to 25 amperes.
  • Portable, weight only 35 lb. (16 Kg)
  • Maximum Size: 10" x 8" x 8" (25 x 20 x 20 cm)
  • Warranty: one year from date of purchase
  • Regulations: 13.75V 1.5v. / 27.5V 2.5v.
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Reviews

They are back! They are yellow now. This unit arrived with the cessna and piper plugs, 14v and 28v operation. We needed a second unit for power, these supplies are perfect for our operations.

Thom D
December 11, 2020

Q&A

Q: Can this unit support piston engine starting?

No this is just a power supply, it cannot start aircraft.

Q: Can this unit charge the aircraft battery?

No, this is meant as an aux power unit only. It is not designed to properly charge the battery.

Q: Can this unit brings the piper and Cessna plugs together?

This only has the 3 pin, cessna style plug.

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