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PLANE POWER POWERFLEX VOLTAGE REGULATOR - R1224

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14V28V
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Overview

14V / 28V, replaces Ford, Electrodelta, Prestolite, Interav, Wico, FVR, and more voltage regulators. (Refer to Model Eligibility for your more information and additional models)

The Plane Power R1224 Voltage Regulator is a solid-state voltage regulator with over-voltage protection, field short (over current) protection, and reverse battery protection. The Plane Power R1224 Voltage Regulator also supports precision load sharing for twin applications, and an alternator inoperative lamp.

NOTE: The R1224 voltage regulator is designed to be setup in the field for 14 or 28 volt operation by configuring the two jumpers within the voltage regulator.

Attention:
Some applications require accessory part number 07-03532. See Application Guide for requirements.
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Reviews

Solved my voltage problem!

Tim
September 20, 2019

Used to replace my old InterAv regulator. Was more work than just replacing the regulator (some re-wiring) but works great.

Matt A
August 30, 2019

Installed it, it works.

Christopher S
August 14, 2019

I had been chasing alternator problems, it would come online then off again. My C172 (1965 F) had standard Cessna voltage reg and Electrodelta over voltage sensor. Narrowed it down to faulty Over voltage sensor. Cost to replace about same as plane power R1224-14v. Easy decision for me. Get rid of separate device and upgrade newer technology to all in one. Tech support was extremely knowledgeable on pre-purchase questions. Install was a breeze. Everything changed out and adjusted in less than 30 minutes, and no more alternator problems problems. I even got back my over/under voltage warning indicator that someone had disconnected who knows when? Even if it goes out in 3-5 years as some say, $190 bucks is a cheep throwaway, and I’ll be glad to get a new one.

William G
December 24, 2018

Easy to hook up and works right out of the box , replaced a Over Votage relay and regulater at the same time that is no longer avalible , saves room for being small in size

Blaine W
April 2, 2018

Quality part, much better than original STC unit. Adjustable voltage, set at lowest voltage from factory, had to adjust to get proper voltage. Excellent paperwork included.

Guy H
August 5, 2015

Replaced the old InterAv regulator and over voltage relay in my Piper Comanche in one unit. Not hard if you follow the instructions carefully. Works just fine. I like that it is easy to adjust the bus voltage to the value recommended by the battery manufacturer for your operating temperature.,14.25 for my Concorde battery. Glad to replace the 40 year old technology with something better. Be prepared to replace the old wire terminations with new - they are a weak spot.

Carl H
February 27, 2018

They are indeed throw away, I just did but as I worked thru the issues I ended up sending mine back to Hartzel/PP where they bench tested it and pronounced it failed. So they threw it away and after 6 years I bought a new one. Please note, keep your existing ground wire, it is not included in the package. I sent mine back w/ the unit and we had to fabricate a new one.

Greg H
November 4, 2017

We installed a R1224 on our 14V Skylane three years ago. At the time, Plane Power provided service for them. Hartzell Engine Technologies / Kelly Aerospace / Plane-Power now states that they are disposable - if they break just throw it away. Mine failed after 3 years

Geoffrey C
July 6, 2015

Q&A

Q: Do the Plane Power Powerflex Voltage Regulators listed on this page provide noise reduction as well?

Per the supplier: No, these units are not equipped with noise reduction.

Q: Does this Plane Power Powerflex voltage regulator replace InterAv P/N 625-61623? 14 volt Neg ground?

Yes, per the Fit Guide PDF in the "Application Guide" tab of the web page, part number R1224 (our part number 07-01305) will replace InterAv 625-61623. However, we recommend that you verify your aircraft application using the fit guide to confirm it is the correct replacement.

Q: Is the 12-1021 adapter plate included?

No, the 12-1021 adapter plate is not included but can be purchased separately.

Q: What's the difference between the R1224 and R1224B products? Which one is appropriate for E-AB aircraft? Which one is compatible with the Plane Power C14-100 alternator?

The only difference between the two products is the mounting base. Both would be appropriate for an E-AB aircraft along with the Plane Power C14-100 alternator.

Q: Does the unit come with wire connectors that fit the terminals on the regulator? Does not appear that the existing aircraft terminal ends will fit the regulator.

Yes, this will come with the connectors.

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