P/N: 138-5
Category: Generator Control Units & Voltage Regulators
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| Condition | Price | Stock |
|---|---|---|
| As Removed | $125.00 | 2 Available |
The 138-5 is an overvoltage relay protecting aircraft DC electrical systems from charging circuit faults. Installed between the alternator and voltage regulator, it monitors bus voltage and trips to disconnect the charging circuit or alternator field when overvoltage is detected. This prevents damage to avionics, instruments, and the battery during regulator failure or system malfunction.
Installation requires proper wiring verification and compliance with aircraft maintenance manual specifications and FAA-approved data.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
The 138-5 is an overvoltage relay protecting aircraft DC electrical systems from charging circuit faults. Installed between the alternator and voltage regulator, it monitors bus voltage and trips to disconnect the charging circuit or alternator field when overvoltage is detected.
The 138-5 is currently available in the following conditions: As Removed. Each condition reflects the part's maintenance history and certification status per FAA standards.
The 138-5 requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.
Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.