The RB-14/28-25 Series Aircraft Ramp Power Supply is an aircraft flight line service and maintenance tool. The APU unit has a filtered 14 or 28 volt DC power supply with an amperage capability up to 25 amperes for testing of aircraft electrical systems. This ramp or hangar accessory is an absolute must for avionics service, gear and flap actuator exercising and other electrical system service.
Version R-14/28-25P is designed as a power supply only unit with a 60Hz frequency and also includes the Piper coaxial connector.
- Voltage is filtered to eliminate hum and is regulated against input AC line voltage changes
- Output DC voltage and current are displayed on front panel meters
- DC voltage is also protected by a circuit breaker
- Selection of output voltage by front panel switch which is protected by a switch guard
- Closing the guard forces the switch to the 14 volt position
- Plugs directly into the APU receptacle on the aircraft
- AC/DC cable length is 8' each
- Steel housing
- Rubber feet and handle
Product Codes | |
|---|---|
| Mfr Part No: | R-14/28-25P |
| ECCN: | EAR99 |
| SCHEDULE B CODE: | 8504.40 |
Weight: 32 lbDimensions: 8 x 10 x 10 in.Input voltage: 115 VACAC input amperage: 4.5/9 AInput frequency: 60HzOutput voltage: 14/28 VDCDC output amperage: 25AOutput wattage: 350/700 W
- Stock: Out of Stock - On Backorder
- Manufacturer Part #: R-14/28-25P
Aircraft Fitment Finder
Returns & refund summary
- 30-day return window — with prior return authorization, unopened in original packaging.
- Restocking fee: 20% on unopened items, 30% on open-box items.
- Refund processing fee: 5.51% applies to all refunds (returns, cancellations, core-fee refunds) regardless of reason.
- Return shipping: paid by buyer.
- Non-returnable categories: installed/used parts, special-order or rebuilt items, programmed items (incl. ELTs), batteries, AOG-priority orders, international orders.
Full terms: Return Policy.
Authenticity & authorization
All parts sold by American Aviation Parts are genuine factory products sourced through authorized distribution channels. Our authorization status varies by brand — for some brands we are a direct authorized dealer; for others we are an independent reseller through authorized distribution. Either way, the part you receive is the same factory product, with standard documentation available on request.
See our full Manufacturer Authorizations page for the current per-brand status.
Need traceability paperwork?
If your installation requires FAA Form 8130-3, manufacturer Certificate of Conformance, or other traceability documentation, please call 1-877-722-8727 or email [email protected] before placing the order so we can confirm what is available for this part.
Shipping
Standard ground, expedited, and AOG shipping options are available at checkout. Full shipping-cost tiers and timelines are published on our Delivery Information page.
