R251DR

$570.00

28V Electronic Alternator Controller

SKU: ZA0016.

Product Description

28V Electronic Alternator Controller

What’s included:

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

Product Features:

Voltage Regulation, IC sense referenced

The Voltage Regulator keeps the bus voltage constant by increasing the current to the alternator’s field with a system load increase, decreasing it with a load decrease.

Field-to-Ground Fault Protection (GFP)

Should either of the alternator’s field become shorted to ground (the reason most Voltage Regulators fail), the field-to-ground short protector will deactivate the Voltage Regulator, and switch on the unit’s RED field TSL. The defective field may be identified by selectively operating the right or left alternator. The alternator with the faulty field will not come on line, while the good one will allow bus voltage regulation to 27.5V to 28.0V.

Trouble-Shooting Light (TSL)

Alerts the user to the condition of the Alternator / ACU system.

Other Features:

  • Increase Regulator life
  • Not temperature sensitive
  • Protects against grounded alternator field
  • Helps isolate grounded alternator field in twin engines
  • Identifies grounded field
  • Reduce trouble-shooting time

Additional Information

Weight .3 lbs
Model Number
Voltage Reg. (VR)
Max Field Current
Field-to-Ground Protection
Approval Type
Document Approval
OEM PN(Delco-Remy)
OEM PN: (Cessna)
Replaces OEM PN (LYCOMING)
Replaces OEM PN (PIPER)
Aircraft Common Name
Approved Aircraft
Beech (Beechcraft)
PIPER

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

Cross Reference

Click the links below to download info in .pdf format.

Voltage Regulators for Alternator Systems

14V Alternator Controller Units (ACU) Cross Reference PDF Requires Acrobat Reader

28V Alternator Controller Units (ACU) Cross Reference PDF Requires Acrobat Reader

Single Engine Voltage Regulators for Generators 12A - 50A

14V Single Engine Generator Controller Units (GCU) Cross Reference PDF Requires Acrobat Reader

Twin Engine Voltage Regulators for Generators 35A - 50A

14V Twin Engine Generator Controllers Units (GCU) Cross Reference PDF Requires Acrobat Reader

28V Twin Engine Generator Controller Units (GCU) Cross Reference PDF Requires Acrobat Reader

Over-Voltage Protection Sensors/Relays For Alternator Systems

16V Over-Voltage Relays/Sensors (OVS/OVR) Cross Reference PDF Requires Acrobat Reader

32V Over-Voltage Relays/Sensors (OVS/OVR) Cross Reference PDF Requires Acrobat Reader

Equalizer (EQ) or Parallel Relay for Twin Engine Generator Systems

14V Twin Engine EQ Parallel Relay Cross Reference PDF Requires Acrobat Reader

28V Twin Engine EQ Parallel Relay Cross Reference PDF Requires Acrobat Reader

FAQ

Click the links below to download the .pdf

Connectors

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