28V Alternator Controller Units (ACU) Cross Reference
CESSNA 310L · Wiring Diagram
Overview
This document serves as a cross-reference for 28V Alternator Controller Units (ACUs) applicable to various Cessna aircraft models, including the Cessna 310L. It provides detailed specifications, voltage regulation features, and part numbers for replacement units. The document is intended for aircraft maintenance personnel and technicians who require accurate information for electrical system components. It includes information on voltage regulation, ground-fault protection, and troubleshooting features, ensuring that users can select the appropriate alternator controller for their specific aircraft model.
- Cessna 310L is compatible with multiple 28V alternator controller units.
- R25101 provides voltage regulation at 27.7V; R25102 at 28.7V.
- Ground-fault protection is included in all units for safety.
- Troubleshooting lights help identify electrical issues quickly.
- Part numbers and FAA approvals are essential for compliance.
Document
Source
Originally published by zeftronics.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Wiring Diagram
- Year
- 2014
- Pages
- 2
- File size
- 3.6 MB
- Publisher
- zeftronics.com
Common. Rarer than 2% of the aircraft models we track.
Most owners only have the POH. Here's the essential set for the CESSNA 310L.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
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In this document
Voltage Regulation Features
The document outlines various voltage regulation features for different alternator controller units. For instance, the R25101 model provides voltage regulation at 27.7V, while the R25102 model offers 28.7V regulation. Each unit includes ground-fault protection and troubleshooting lights to assist in identifying electrical issues.
Cessna Model Eligibility
The document lists the Cessna models eligible for each alternator controller unit. Notably, the Cessna 310L is specifically mentioned as compatible with several units, including R25101 and R25102, ensuring that maintenance personnel can easily identify suitable replacements.
Part Numbers and Approvals
Each alternator controller unit is associated with specific part numbers and FAA approvals. For example, the R25101 unit is approved for use in Cessna models C611004-0101 and C611002-0102, among others. This section is crucial for ensuring compliance with aviation regulations.
Safety notes
- Ensure proper installation of alternator controllers to avoid electrical failures.
- Verify compatibility with specific aircraft models before replacement.
Full document text
ZEFTRONICS Electrical Charging System Solutions CROSS REFERENCE VOLTAGE REGULATORS, ALTERNATOR & GENERATOR CONTROLLERS, STARTER GENERATOR CONTROLLERS. CURRENT &V CONTROLLER SENSORS. PARALLELING OVER CURRENT/VOLTAGE PROTECTION UNITS. LIGHT, MOTOR & TEMPERATURE CONTROLLERS, TESTERS, & TIMERS 1622 E. Whaley St, Longview, TX 75601. USA P: 888-309-3883 vvvVVV.zeftronics.com F: 903-236-9766 sales@zefironics.com 28V Alternator Controller Units (ACU) Cross Reference Photo System Volt Engine Benefits / Features Approval Replacement For Aircraft Eligibility Zeftronics P/N fr- i _ . e L ALT 28V Single • Voltage Regulation: 27.7V • Ground-Fault-Protection (GFP) • Reduced panel lights flicker • Trouble-Shooting Light • Identifies field open/ground • For unit with built-in OV Protection use the R25400 (requires mod to ALT wiring / connector and FAA field approval. FAA-PMA Cessna: C611004-0101, C611002- 0102, -0105 Ford: C8FF-10316-A, C6FF- 10316-A TCM: CM 636147 Electrodelta: VR500-0101 PFT/Lamar: DGR5-01 Cessna: 152, A152, F152, FA152, 172, 172N, F172N, R172K, FR172K, 177B, 177RG, 180K, 182, 182P, 182Q, F182P, F182Q, R182, FR182, T182, TR182, A185F, A188, A188A, A188B, T188C, 206, P206, TU206A, U206, U206G, 207, T207, 207A, T207A, 210, 210K, 210L, 210M, 210N, T210K, T210L, T210M, T210N, P210R, 337, 337B, 337C, 337D, 337E, 337F, 337G, 337H, T337B, T337C, T337D, T337E, T337F, T337G, T337H, P337H, T337H-SP, F337E, F337F, F337G, F337H, FT337E, FT337F, FT337GP, FT337HP, 337A (USAF 02B), M337B (USAF 02A). R25101 Rev A ,-,=1,_ --,,,...-,,,,,,,,_ 9,,,E.ThoNics prz.,.... ...,-..... e ALT 28V Single • Voltage Regulation: 28.7V • Ground-Fault-Protection • Reduced panel lights flicker • Trouble-Shooting Light • For unit with built-in OV Protection use the R25400 (requires mod to ALT wiring / connector and FAA field approval. FAA- PMA Cessna: C611004-0102, Electrodelta: VR500-0102 PFT/Lamar: DGR5-02 Applicable for all CESSNA models listed for R25101 Rev A except 337A (USAF 028), M3378 (USAF 02A). R25102 Rev A i ..._ 0 ALT 28V Single / Twin • Voltage Regulation: 27.7V • !!BEST VALUE!! • Ground-Fault-Protection • Single & Dual Alternator Application • Trouble-Shooting Light • Externally Adjustable • Use V2510A for Over- Voltage (OV) Protection. • Identifies field open/ground 1 FAA-PMA Delco Remy: 9000591 Lycoming: 74292 Piper: 450-395 TMC: 631656 Cessna: 310N, 310L, 320D, 320E; Beech: B95A, D95A, 95-B55, 95-055; Piper: PA-31,PA31-300, 310, 325. R251DR m .....- .-67: ,„.„ ... . t .0m-T1 ,-- = .... 0 A 1 ALT 28V - Single • Voltage Regulation: 28.7V + Low Voltage warning: 24.7V • OV Protection Built-in: 32.0V • Reduced panel lights flicker • Low & OV Warning • Protects system loads against overexcited alternator • Trouble-Shooting Light • Identifies field open/ground FAA-STC FAA- PMA Cessna: C611005-0103, - 0101, -0102 Electrodelta: VR515F, G, GA Lamar: DGR3 Cessna: 152,A152, F152, FA152; 172, 172N, 172P, 172RG; FR172; R172, R172K; F172N, F172P; 180, 180K; 182, 182Q, 182R; R182, FR182, TR182, F182R, T182R; 185,A1 85F; 206,U206; 207,T207; 210, 210N, 210R; P210N, P210R; T210N, T210R. R25400 Parts Cross Reference - Features, Specifications, Part Numbers, Eligibilities and Approvals may change with or without notice. Photos are for reference only, actual product may differ Date Issued 7/14/2014 ZEFTRONICS Electrical Charging System Solutions CROSS REFERENCE VOLTAGE REGULATORS, ALTERNATOR & GENERATOR CONTROLLERS, STARTER GENERATOR CONTROLLERS. CURRENT &V CONTROLLER-SENSORS. PARALLELING-OVER CURRENT/VOLTAGE PROTECTION UNITS. LIGHT, MOTOR & TEMPERATURE CONTROLLERS, TESTERS, & TIMERS 1622 E. Whaley St, Longview, TX 75601. USA P: 888-309-3883 vvvVVV.zeftronics.com F: 903-236-9766 sales@zefironics.com 28V Alternator Controller Units (ACU) Cross Reference Photo System Volt Engine Benefits / Features Approval Replacement For Aircraft Eligibility Zeftronics P/N ,- 1 - ,, , ALT 28V Single " • Voltage Regulation: R25501 - 27.7V R25502 - 28.7V • Low Voltage warning: 24.7V • OV Protection Built-in: 32.0V • Reduced panel lights flicker • Low & OV Warning • Protects system loads against overexcited alternator • Trouble-Shooting Light • Identifies field open/ground • Combines voltage regulator with OV Relay & Low/OV warning in a user friendly unit FAA-STC FAA- PMA R25501 replaces Cessna: C611004-0101, C611002-0102, -0105 Ford: C8FF-10316-A, C6FF- 10316-A TCM: CM 636147 Electrodelta: VR500-0101 PFT/Lamar: DGR5-01 Plus OV Relay & LVI R25502 replaces C611004-0102 Plus OV Relay & LVI Cessna: 210 R25501 R25502 — — ALT 28V Single / Twin • Voltage Regulation, VR: 28.4V • Externally Adjustable VR • Reduced panel lights flicker • Single or Dual ALT Application • Use R25VON for built-in Over- Voltage (OV) Protection FAA-STC FAA-PMA Prestolite: V5F7403A, V5F74035, V5F7404 Piper: 550-381 Lycoming: LW10179, 77347 Piper: PA-31, PA31-300, 310, 325, 350. PA36-285. Cessna: 310,310P, 310Q, 320. 401A, 401B, 402A, 402B, 414, 421, 421A, 421B. Schweitzer: 269C. Piper: PA36-300, 375, PA60- 600, 601, 601P, 602P, 700P Twin Commander: 500-S Beech: E55, 58, F33A, A36, A36TC R2510N R25VON „ " i., 41. Przxic rair...-,Ar ,-...,---.....,. GA X I ALT 28V — .1 1:k Single / Twin • Voltage Regulation: 28.4V • OV Protection built-in: 32V • Low Voltage warning: 24.7V • Externally Adjustable VR • Reduced panel lights flicker • Single or Dual ALT Application • Low/Over-Voltage warning pin _........ i FAA-STC FAA-PMA Zeftronics: R251 ON (ACU) + V251 OA (OVR) APPLICABLE FOR ALL AIRCRAFT MODELS LISTED FOR R2510N. Parts Cross Reference — Features, Specifications, Part Numbers, Eligibilities and Approvals may change with or without notice. Photos are for reference only, actual product may differ Date Issued 7/14/2014
What's in the CESSNA 310L TCDS
A Type Certificate Data Sheet (TCDS) is the FAA's record of what an aircraft type was approved as. It is the source of truth for weights, seating, fuel and the rules the design was certified against. Expand any line to see what it means.
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