1. Product Overview
The Intermatic PX600 600W Pool Light Transformer is engineered to provide safe and reliable low-voltage power for various aquatic and outdoor lighting applications. This unit supplies 12, 13, or 14 VAC to pool and spa lights, submersible fixtures, and outdoor landscape lights. Designed with enhanced safety features, including a grounded shield and built-in circuit protection, the PX600 ensures compliance with electrical safety standards.

Figure 1: Intermatic PX600 600W Pool Light Transformer, beige enclosure.
2. Important Safety Information
WARNING: Risk of Electric Shock. Installation must be performed by a qualified electrician and comply with all local and national electrical codes.
- Always disconnect power at the circuit breaker before installing or servicing the transformer.
- The transformer must be mounted at least 1 foot (0.3 meters) above ground level.
- Ensure proper grounding of the unit. A grounded shield between the primary and secondary windings provides an additional layer of safety.
- This transformer is suitable for direct connection to underwater lights and complies with NEC Code 680.23 requirements for underwater luminaries.
- Do not use with self-contained portable spas or hot tubs.
- The built-in circuit protection will temporarily disconnect power in case of an overload. If an overload occurs, remove the short or overload, and the unit will automatically reset after approximately 15 minutes. No user-serviceable parts are inside.
3. Key Features
- Versatile Voltage Output: Supplies 12V, 13V, or 14V AC to accommodate various low-voltage lighting requirements.
- Enhanced Safety: Features a grounded shield between primary and secondary windings for safe operation.
- Built-in Circuit Protection: Automatically disconnects power during an overload to protect the unit and connected lights.
- Robust Enclosure: Durable 3R Beige metal enclosure designed for outdoor use, featuring 12 combination knockouts for flexible conduit entry (2 right, 2 left, 2 back, 6 bottom).
- Compact Design: Measures 10 inches (H) x 10 inches (W) x 5 3/8 inches (D), allowing for efficient installation in various spaces.
4. Technical Specifications
| Specification | Detail |
|---|---|
| Model Number | PX600 |
| Brand | Intermatic |
| Input Voltage | 120V AC, 60Hz |
| Output Voltage | 12V, 13V, or 14V AC |
| Maximum Wattage | 600W |
| Enclosure Type | 3R Beige Metal, Rainproof |
| Dimensions (H x W x D) | 10 x 10 x 5.38 inches |
| Item Weight | 22.8 pounds |
| Mounting Type | Panel Mount or Wall Mount |
| UPC | 078275079854 |
5. Setup and Installation
Installation of the Intermatic PX600 transformer should be performed by qualified personnel in accordance with all applicable national and local electrical codes. Refer to the wiring diagram located inside the transformer's cover for specific connections.
5.1 Mounting
The PX600 is designed for wall or panel mounting. It includes top and bottom mounting brackets for secure installation. Ensure the mounting location is at least 1 foot (0.3 meters) above ground level and provides adequate ventilation.
5.2 Wiring
The enclosure features 12 combination knockouts for flexible conduit entry. Connect the 120V AC input power to the designated terminals. For the low-voltage output, select the appropriate voltage tap (12V, 13V, or 14V) based on your lighting requirements and cable run length. Ensure all connections are tight and properly insulated. The grounded shield provides safety between the primary and secondary windings.

Figure 2: Internal view of an Intermatic transformer, highlighting wiring flexibility and grounded shield.
6. Operating Instructions
Once properly installed and wired, the Intermatic PX600 transformer operates automatically. Apply power to the 120V input circuit. The transformer will then provide the selected low-voltage output to your connected pool/spa or landscape lights.
6.1 Voltage Selection
The PX600 offers multiple output voltage taps (12V, 13V, 14V). The appropriate tap should be selected during installation to compensate for voltage drop over long cable runs and to ensure optimal brightness for your specific lighting fixtures. Consult your lighting fixture's specifications for recommended voltage.

Figure 3: Example of pool and landscape lighting powered by a low-voltage transformer.
7. Maintenance
The Intermatic PX600 transformer is designed for minimal maintenance. Periodically inspect the unit for any signs of physical damage, corrosion, or loose connections. Ensure the enclosure remains sealed to prevent moisture ingress. Keep the area around the transformer clear of debris to allow for proper ventilation.
No user-serviceable parts are located inside the transformer. Do not attempt to open or repair the unit yourself.
8. Troubleshooting
8.1 Lights Not Functioning
- Check Power Supply: Verify that the 120V AC input power is active at the circuit breaker.
- Internal Protector Trip: The transformer has a built-in circuit protector that will open if an overload or short circuit occurs. If this happens, the power will be temporarily disconnected.
- Identify and Correct Overload/Short: Disconnect all loads from the transformer. Inspect your low-voltage wiring and fixtures for any shorts or overloads. Correct any issues found.
- Automatic Reset: After correcting the fault, the internal protector will automatically reset after approximately 15 minutes, restoring power.
- Inspect Connections: Ensure all wiring connections are secure and free from corrosion.
If the issue persists after following these steps, contact a qualified electrician or Intermatic customer support.
9. Warranty and Support
9.1 Product Warranty
The Intermatic PX600 600W Pool Light Transformer comes with a 1-year warranty from the date of purchase, covering defects in materials and workmanship. This warranty does not cover damage resulting from improper installation, misuse, abuse, or natural disasters. For warranty claims, please retain your proof of purchase.
9.2 Customer Support
For technical assistance, troubleshooting, or warranty inquiries, please contact Intermatic customer support. Refer to the official Intermatic website for the most current contact information.
10. Product Video Overview
Video 1: An official overview of Intermatic Safety Transformers, highlighting key features such as grounded shield, automatic reset, noise filtering, and flexible installation options. This video provides a visual guide to the benefits and design of Intermatic's transformer line, including the PX600 model.





