WH5 120 L Wiring Diagram | Explained

The WH5 120L, a versatile ballast by Fulham Co., Inc., requires correct wiring for optimal performance. Its diagram uses symbols like L (hot wire), N (neutral), G (ground), and R, Y, B, and W for specific wires. 

The specific wiring configuration depends on the number and type of lamps used. For example, two F32T8 lamps require a different wiring layout than a single F54T5HO lamp. Always consult the WH5 120L’s spec sheet and local electrical codes before installation. 

Wiring Diagram of WH5 120 L

Analyzing the diagram allows us to understand the circuit layout, wire sizing, conduit requirements, and grounding connections. This ensures a safe and functional installation. The specific configuration will vary depending on the number and type of lamps used.

Figure 1: WH5 120 L Wiring Diagram

1. AC Power Input:

• The ballast requires a 120-volt AC power supply.
• Terminals for AC input may be labeled as Line (L) and Neutral (N).
• There might be additional terminals for connecting to the incoming power source.

2. Lamp Connections:

Fulham WorkHorse 5 is designed for four lamps.

• The lamp connections will typically have multiple pairs of terminals, each corresponding to a specific lamp.
• Terminals may be labeled as follows: Lamp 1 (L1), Lamp 2 (L2), Lamp 3 (L3), and Lamp 4 (L4).

3. Grounding (if applicable):

• Some ballasts may have terminals for grounding. Ensure proper grounding as per local electrical codes.

4. Other Features:

• The ballast may include additional features such as an emergency backup battery connection, if it supports emergency lighting.

Frequently Asked Questions

What symbols are used in the WH5 120L wiring diagram?

Common symbols include L (line), N (neutral), G (ground), R (red output), Y (yellow output), B (black input), and W (white input). Each symbol represents a specific wire and its function.

How do I know which wiring configuration is right for my setup?

The specific configuration depends on the number and type of lamps you are using. The WH5 120L supports various lamp combinations, each requiring different wiring arrangements. Refer to the diagram or spec sheet for specific instructions.

Can I use any type of wire with the WH5 120L?

No, you must choose the appropriate wire gauge based on the circuit length and load. Using undersized wires can pose safety hazards due to overheating.

Conclusion

Always comply with local electrical codes and regulations. Use the correct lamp type and wattage specified for the WH5 120L. Prioritize safety and consult a professional if you have any doubts or require assistance with the installation or operation of the ballast.