Part# 07-00638
MFR Model# V1510A
ImageMfr PNDescriptionReplacement forPN
V1510A16V Over-Voltage Relay
More Precise, Less Temperature Sensitive, Protect sensitive Avionics equipment
Piper: 450-397, 484-183, 550-380, 450-393
Beech: 138-1
Wico: X-17621
B00289-2, B00339-1
Electrodelta: OS75-14
Delco Remy: 1115831
Prestolite: FOC-4002B
Zeftronics: ACU PN R15V0N or ACU P/N: R15V0L has this Over-Voltage relay built in


Note: Manufacturer C of C not available on Zeftronics stocked units. Zeftronics C of C available via special order only. If certs are required, please add part # 07-00000 with your order (See Accessories).

As a factory authorized Zeftronics distributor, we can assure you the fastest delivery and best prices on all of your Zeftronics engine accessory requirements. We carry the complete Zeftronics product line. If you do not see the product you need listed, please call us for price and availability.

We have complete information on file cross referencing Zeftronics part numbers to all OEM part numbers.If you are not sure what part number you need for your aircraft, please call us for immediate assistance.

Download Aircraft Eligibility Chart in .pdf.

Note: Please read wiring instructions carefully prior to installation of voltage regulators. Improper wiring will void warranty All returns subject to manufacturer's warranty inspection. For an accurate cross reference, OEM Part Number Required. For Aircraft Eligibility, download the Eligibility Chart
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Qhat i need at a. Affordable price

Carlos J
January 23, 2020

I used a MS21919 - WDG22 clamp to secure the Over-voltage Relay V1510A.

Cliff S
October 25, 2019

Sensor appears to work as it is suppose to.

David H
September 30, 2019

I gave 5 stars as the V11100 appears as advertised. I presume it works, however there is no easy way of testing the overvoltage sensing aspect. I installed the Zeftronics to replace an older Electrodelta that while still apparently working OK, was showing black marks on its out case. I first assumed the black marks were from the Adel clamp I used to secure the Electrodelta but eventually decided that perhaps something bad was happening internally. The Zeftronics V11100 overvoltage sensor could be the same unit internally as the equivalent Electrodelta except that the V11100 is covered in a sort of rubbery outer covering material that makes it a larger diameter than the Electrodelta. What I am saying is that this covering would likely have obscured the black markings such as were evident on the Electrodelta. As such, I am not certain this is for the better, hence I wondered why the additional covering. Also you need a larger sized Adel clamp for the Zeftronics than for the Electrodelta. (ACS might perhaps make available a suitable sized Adel clamp for each of the overvoltage sensors.) Not that it really matters, the wire gauge of the three wires from the Zeftronics was at least a gauge lighter than the Electrodelta. I generally like heavier gauge wires on this sort of small item as it makes the squeeze on crimp on ring connectors more certain. I must complement Zeftronics on providing paper wiring drawings and instructions re installation plus repeating the colour code wiring hookup on the body label of the Overvoltage Sensor. The provided serial number and weight, (0.2 lb), was a class provision but given the cost, I guess that info is not too much to expect, and well in order.

Bruce B
March 5, 2017


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Is the STC document included with these Zeftronics Voltage Regulators?

Yes, the STC document will be included with the product.

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