R15100 Rev A


14V Alternator Controller Unit (ACU), Voltage Regulator

SKU: ZA0013.
Category: .

Product Description

14V Alternator Controller Unit (ACU), Voltage Regulator

What’s included:

  • Installation Drawing
  • Warranty Card
  • Product Eligibility Catalog (PEC)
  • Troubleshooting Notes
  • STC Certificate
  • Instructions For Continued Airworthiness Maintenance (ICA)

Product Features:

Voltage Regulation, Remote Voltage Sensed

The Controller or Voltage Regulator, with Remote Voltage sense of the Alternator output, keeps the bus voltage constant by controlling the field current: increasing it when the system load increases and decreasing it when the load drops.

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Low Voltage Warning Light Output1

A warning light connected between pin I and the bus comes on to warn the pilot if the bus voltage exceeds the OV level or the alternator is off-line due to Field-to-Ground Fault Protection (GFP).

Field-to-Ground Fault Protection (GFP)

An alternator field-to-ground short will cause the field-to-ground short protector to deactivate the Controller and switch on the unit’s Red TSL, and the LV-OV indicator on the instrument panel.

Trouble-Shooting Light (TSL)

The TSL (on the unit) is designed to alert the user to the condition of the Alternator / Controller (ACU) system.

Additional Features:

  • Increased Regulator life
  • Reduced panel lights flicker
  • Warns the Pilot of Low & OV Conditions
  • Protects against grounded alternator field
  • Identifies grounded field. Reduce trouble-shooting time.

Additional Information

Weight1 lbs
Dimensions11 × 8.5 × 5.5 in
Model Number

R15100 Rev A

Voltage Reg. (VR)

14.2V + 0.4V

Max Field Current


Approval Type

FAA-STC Approved

Document Approval

FAA Form 337 Required

Aircraft Common Name

Skywagon, Super Skylane, Stationair, Super Cargo Master, Turbo Stationair, Centurion, Cardinal, Cardinal RG, Classic, Skyhawk, Hawk XP, Cutlass, Cutlass RG, Powermatic, Skyhawk Powermatic

OEM PN: (Cessna)

C611001-0201, C611001-0101, C611001-0102

Replaces OEM PN (BEECH)


OEM PN (Electrodelta)

VR 600



Replaces OEM PN (FORD)

D4FF-10316-BA, CA

Approved Aircraft

150, 150A, 150B, 150C, 150D, 150E, 150F, 150G, 150H, 150J, 150K, 150L, 150M; A150, A150K, A150L, A150M; F150F, F150G, F150H, F150J; FA150, FA150K, FA150L, FA150M. 172, 172B, 172D, 172E, 172F, 172G, 17

Approved Aircraft (GRUMMAN)

A, AA-5, B

Beech (Beechcraft)

35A33, 35B33, 35C33, E33, E33B, F33, H35, K35, M35, N35, P35


Product SupportPDF Requires Acrobat Reader

Warranty Policy

Click the links below to download warranty policy in .pdf format.

Warranty Policy (New Manufactured) PDF Requires Acrobat Reader

Warranty Policy (Recertified) PDF Requires Acrobat Reader

R15100 Rev A - Zeftronics


Click the links below to download the .pdf


Product Connector FAQ PDF Requires Acrobat Reader

General Product

GCU Cross Reference (Coming Soon)

ACU Cross Reference (Coming Soon)

OVR, OVS, Cross Reference (Coming Soon)

How To

How To Read the Cross Reference Chart FAQ (ACU) PDF Requires Acrobat Reader

How To Read the Cross Reference Chart FAQ (GCU) PDF Requires Acrobat Reader