Introduction
This manual provides essential information for the proper installation, operation, and maintenance of the Ditek DTK-HL480 Highway Lighting Surge Protector. The DTK-HL480 is designed to protect 480 VAC single-phase, 2-wire plus ground (2W+G) highway lighting systems from damaging transient overvoltages caused by lightning and other electrical disturbances.
Please read this manual thoroughly before installation and retain it for future reference. Adherence to these instructions will ensure optimal performance and longevity of the surge protector.
Safety Information
- Installation must be performed by qualified personnel in accordance with all national and local electrical codes.
- Always disconnect power to the circuit before installing or servicing the surge protector.
- Verify the voltage of the electrical system matches the surge protector's rating (480 VAC).
- Ensure proper grounding connections are made.
- Do not operate the device if it appears damaged.
Setup and Installation
The DTK-HL480 is designed for easy integration into existing or new highway lighting systems. Proper installation is crucial for effective surge protection.
Pre-Installation Checks
- Confirm the supply voltage is 480 VAC.
- Ensure adequate space for mounting the device near the equipment to be protected.
- Gather necessary tools: screwdriver, wire strippers, multimeter, mounting hardware.
Mounting Instructions
- Select a suitable mounting location, typically within 3 feet (1 meter) of the protected equipment, to minimize lead length.
- Securely mount the DTK-HL480 to a stable surface using appropriate fasteners.
Wiring Connections
The DTK-HL480 is a 2-wire plus ground device. Follow the wiring diagram below for correct connections.
- Line 1 (L1): Connect to one of the 480 VAC phase conductors.
- Line 2 (L2): Connect to the other 480 VAC phase conductor.
- Ground (GND): Connect to a reliable earth ground. This connection is critical for effective surge protection.
Ensure all connections are tight and secure. Verify wiring polarity and voltage before re-applying power.
Image: Ditek DTK-HL480 Surge Protector. This image shows the compact design of the surge protector, indicating its connection terminals for line and ground wires.
Operating Instructions
The Ditek DTK-HL480 is a passive surge protection device. Once correctly installed, it operates automatically to divert harmful transient voltages away from your highway lighting equipment. There are no user-adjustable settings or controls.
Functionality Check
After installation and power restoration, the device is immediately active. Some models may include an indicator light to confirm operational status. If an indicator is present and not illuminated, refer to the troubleshooting section.
Maintenance
The DTK-HL480 requires minimal maintenance. Regular visual inspections are recommended to ensure continued protection.
Inspection Schedule
- Periodically inspect the surge protector for any signs of physical damage, such as cracks, discoloration, or loose connections.
- If the unit has an operational status indicator, verify it is illuminated (if applicable).
- In areas prone to frequent lightning activity, more frequent inspections are advisable.
Replacement
Surge protectors have a finite lifespan, as they absorb and dissipate surge energy. If the unit shows signs of damage, or if an operational indicator suggests failure, the unit should be replaced immediately to ensure continued protection.
Troubleshooting
This section addresses common issues that may arise with the DTK-HL480 surge protector.
| Symptom | Possible Cause | Action |
|---|---|---|
| Protected equipment experiences surge damage despite surge protector installation. | Improper installation (e.g., long lead lengths, poor grounding), surge protector has reached end-of-life, or surge magnitude exceeded device capacity. | Verify installation per instructions, check grounding. Replace the surge protector. |
| No indicator light (if applicable). | No power to the unit, unit failure, or indicator LED failure. | Verify power supply to the unit. If power is present, the unit may have failed and requires replacement. |
| Physical damage to the unit. | Severe surge event, environmental factors, or mechanical impact. | Immediately disconnect power and replace the unit. |
Specifications
| Feature | Specification |
|---|---|
| Model | DTK-HL480 |
| Voltage Rating | 480 VAC |
| Phase | Single Phase |
| Wiring Configuration | 2-Wire plus Ground (2W+G) |
| Item Weight | 3 pounds (approximately 1.36 kg) |
| Manufacturer | DITEK |
Warranty and Support
For information regarding the product warranty, please refer to the warranty documentation provided with your purchase or visit the official Ditek website. Ditek stands behind the quality and performance of its products.
Customer Support
If you have questions about the installation, operation, or troubleshooting of your DTK-HL480 surge protector, please contact Ditek customer support. Contact details can typically be found on the manufacturer's website or product packaging.
When contacting support, please have your product model number (DTK-HL480) and any relevant purchase information available.
