DESCRIPTION |
FEATURES |
SPECIFICATIONS |
DOCUMENTS |
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DESCRIPTION
The **Lamar B-00266-2 Overvoltage Relay** (P/N **B-00266-2**) is a 28V aircraft electrical protection component designed for use in compatible aircraft charging and electrical systems.
The relay provides overvoltage protection by responding to excessive electrical system voltage, supporting the protection of aircraft electrical equipment and associated components.
The B-00266-2 is listed for selected Piper aircraft and other applicable aircraft electrical system installations.
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## Applications
Suitable for applicable:
- **Piper Aircraft** – PA-23-235, PA-23-250, PA-31 Series and PA-36 Series
- **Britten-Norman Islander Aircraft** – BN-2A, BN-2B, BN-2T and BN-2T-4
- **Britten-Norman Trislander Aircraft** – BN-2A Mk III Series
- **Aircraft Electrical Systems** – Overvoltage protection for compatible 28V electrical systems
- **Aircraft Electrical System Maintenance** – Replacement of applicable overvoltage protection relays
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## Why CJ Aerospace?
CJ Aerospace supplies aircraft electrical components, overvoltage relays, voltage regulators and replacement electrical system parts for a range of aviation applications.
Our team can assist with product information, availability and part-number identification.
- 🇦🇺 **Australian-owned and operated**
- 📦 **Aircraft electrical components and replacement parts**
- 🔧 **Technical assistance with part identification and compatibility**
- ✈️ **Support for aircraft owners, operators and aviation professionals**
> ✉️ [Contact us at sales@cjaerospace.com.au](mailto:sales@cjaerospace.com.au)
> Need help identifying the correct overvoltage relay or compatible aircraft electrical component? Contact our team for assistance.
FEATURES
- **28V Electrical System Compatibility** – Designed for applicable 28V aircraft electrical systems
- **Overvoltage Protection** – Responds to excessive electrical system voltage
- **Electrical System Protection** – Supports the protection of associated aircraft electrical equipment
- **Aircraft Maintenance Applications** – Replacement component for applicable electrical system servicing
- **Multiple Aircraft Applications** – Listed for selected Piper and Britten-Norman aircraft
SPECIFICATIONS
Package Dimensions
| Length | cm |
| Height | cm |
| Width | cm |
| Weight | |
Details
| **Specification** | **Detail** |
| --- | --- |
| **Part Number** | B-00266-2 |
| **Product Type** | Overvoltage Relay |
| **System Voltage** | 28V DC |
| **Function** | Aircraft Electrical System Overvoltage Protection |
| **Contacts** | One Circuit, Normally Closed (NC) |
| **Contact Rating** | 10A, Non-Inductive |
| **Overvoltage Operation** | Contacts Open and Lock Open |
| **Reset** | Remove Supply Voltage |
| **Operating Voltage (Calibration)** | 32.0V ±0.3V |
| **Operating Time – 1.0V Above Calibration** | 0.25 Seconds |
| **Operating Time – 5.0V Above Calibration** | 0.09 Seconds |
| **Weight** | 0.252 lb Maximum (Approx. 114 g) |
| **Dimensions** | 1.44 in (L) × 3.00 in (W) × 2.75 in (H) |
| **OEM Part Number** | 484-182 |
| **Compatible Piper Aircraft Models/Series** | PA-23, PA-23-160, PA-23-235, PA-23-250, PA-23-250 (Navy UO-1), PA-E23-250, PA-31, PA-31-300, PA-31-325, PA-31-350, PA-36-285, PA-36-300, PA-36-375 |
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| **Compatible Twin Commander Aircraft Models/Series** | 500, 500-A, 500-B, 500-S, 500-U, 520, 560, 560-A, 560-E, 560F, 680, 680E, 680F, 680FL, 680FL(P), 680T, 680V, 680W, 681, 685, 690, 690A, 690B, 690C, 690D, 695, 695A, 695B, 700, 720 |
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| **Compatible Agusta-Bell Aircraft Models/Series** | AB102 |
| **Brand** | Lamar |
| **Manufacturer** | Lamar Technologies LLC |
BROCHURES & DOCUMENTATIONS
List of Brochures
List of Documentation
Lamar Electrical Component Application
Technical Data Sheet
VIDEO
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