Introduction
This manual provides essential instructions for the safe and effective installation, operation, and maintenance of the Technical Precision Replacement Ballast, model DUE-53-AX-UF1B-3. This product is designed as a direct replacement for the Keystone DUE-53 LED ballast. Please read this manual thoroughly before installation or use and retain it for future reference.

Image: An assortment of LED light bulbs and a fluorescent tube, illustrating the types of lighting components this ballast may interact with. This image serves as a general representation of lighting products.
Safety Information
- Electrical Hazard: Installation should only be performed by a qualified electrician. Ensure power is disconnected at the circuit breaker before beginning any installation or maintenance.
- Compatibility: This ballast is a replacement for Keystone DUE-53. Verify compatibility with your existing lighting system before installation.
- Proper Wiring: Follow all local and national electrical codes. Incorrect wiring can lead to fire, electric shock, or product damage.
- Operating Environment: Do not expose the ballast to moisture or extreme temperatures outside its specified operating range.
Setup and Installation
- Disconnect Power: Turn off the main power supply to the fixture at the circuit breaker. Confirm power is off using a voltage tester.
- Access Fixture: Open the lighting fixture to access the existing ballast.
- Remove Old Ballast: Carefully disconnect all wires from the old ballast. Note the wiring configuration or take a photograph for reference. Remove the old ballast from the fixture.
- Install New Ballast: Mount the Technical Precision DUE-53-AX-UF1B-3 replacement ballast securely within the fixture.
- Wire Connections: Connect the wires from the fixture to the new ballast according to the wiring diagram provided with the original fixture or the replacement ballast (if included). Ensure all connections are secure and insulated.
- Close Fixture: Carefully close the lighting fixture, ensuring no wires are pinched.
- Restore Power: Turn the main power supply back on at the circuit breaker.
- Test Operation: Verify that the lighting fixture operates correctly.
Note: If you are unsure about any step, consult a qualified electrician.
Operating Instructions
The Technical Precision Replacement Ballast operates automatically once properly installed and powered. It is designed to provide stable power to compatible LED lighting components.
- Power On/Off: Control the lighting fixture using its standard wall switch or control system.
- Normal Operation: The ballast should provide instant-on, flicker-free operation for compatible LED lamps.
Maintenance
The Technical Precision Replacement Ballast is designed for minimal maintenance. However, periodic checks can ensure optimal performance and longevity.
- Power Disconnection: Always disconnect power before performing any maintenance.
- Cleaning: Keep the ballast and surrounding area free from dust and debris to ensure proper heat dissipation. Use a dry, soft cloth for cleaning. Do not use liquid cleaners.
- Inspection: Periodically inspect wiring connections for any signs of wear, corrosion, or loosening. Ensure the ballast remains securely mounted.
- Lamp Replacement: If a compatible LED lamp fails, replace it according to the lamp manufacturer's instructions. Ensure the replacement lamp is compatible with the ballast.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Light fixture does not turn on. |
|
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| Light flickers or dims. |
|
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If troubleshooting steps do not resolve the issue, contact Technical Precision customer support or a qualified electrician.
Specifications
- Model: DUE-53-AX-UF1B-3
- Brand: Technical Precision
- Replacement For: Keystone DUE-53 Ballast
- Special Features: High Efficiency, Instant On
- Specific Uses: Air Conditioner, Furnace (Note: This refers to the original product's application, the ballast itself is for lighting.)
- Material: Glass (Note: This likely refers to the lamp it powers, not the ballast casing.)
- Unit Count: 1.0 Count
- ASIN: B0CDN5YMSX
Warranty Information
Specific warranty details for this Technical Precision product are not provided in the available information. Please refer to the product packaging or contact Technical Precision directly for warranty terms and conditions.
Support
For technical assistance, troubleshooting beyond this manual, or inquiries regarding your Technical Precision Replacement Ballast, please contact Technical Precision customer support.
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