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  • Zeftronics Alternator Controller
R251DR
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Zeftronics Alternator Controller (R251DR)

$424.97
SKU:
R251DR
Weight:
2.00 LBS
Availability:
Usually ships withn 24 hours
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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

Click here for cross reference guide

Additional Information

Weight .3 lbs
Model Number

R251DR

Voltage Reg. (VR)

27.7V +/- 0.4V

Max Field Current

(IF) 5A

Field-to-Ground Protection

@ IF > 6A

Approval Type

FAA-PMA Approved

Document Approval

Log Book Entry Required

OEM PN(Delco-Remy)

DELCO-REMY: 9000591

OEM PN: (Cessna)

CESSNA: 9000591, 11570010-1

Replaces OEM PN (LYCOMING)

LYCOMING: 74292

Replaces OEM PN (PIPER)

PIPER: 450-395

Aircraft Common Name

Skyknight

Approved Aircraft

CESSNA: 310N, 310L, 320D, 320E

Beech (Beechcraft)

BEECH: B95A, D95A,95-B55,-C55

PIPER

PIPER: PA-31,-300,-310,-325

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