1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Legrand LEG92758 Timer. Please read these instructions carefully before use and retain them for future reference.
2. Safety Information
WARNING: Electrical installation should only be performed by qualified personnel. Disconnect power before installation or servicing to prevent electric shock.
- Ensure the power supply matches the timer's specifications (230V~ 50/60Hz).
- Do not exceed the maximum load capacity of 16A / 3680W.
- Protect the device from moisture and extreme temperatures.
- Do not attempt to repair or modify the device yourself. Contact qualified service personnel.
3. Product Overview
The Legrand LEG92758 is a compact electrical timer designed for controlling lighting circuits. It features an adjustable delay time and supports both 3-wire and 4-wire operation, automatically detecting the configuration.

Image 1: Front view of the Legrand LEG92758 Timer, showing terminals A1, A2, B, and the adjustable delay knob with settings from 0.5 to 10 minutes.
Key Features:
- Adjustable delay time from 0.5 to 10 minutes.
- Manual push-button contact.
- Automatic recognition of 3-wire or 4-wire operation.
- Suitable for various lamp types, including incandescent, halogen, and compact fluorescent.
4. Specifications
| Specification | Value |
|---|---|
| Brand | Legrand |
| Model Number | LEG92758 |
| Voltage | 230V~ |
| Frequency | 50/60 Hz |
| Amperage Capacity | 16 Ampere |
| Output | 16A – 250V – cos Ø = 1 |
| Incandescent Load | 3680 Watts |
| Halogen Load (230V) | 1000 VA |
| Fluorescent Load (Offset Parallel 70F) | 1000 VA |
| Compact Fluorescent Load | 1000 VA |
| Energy-Saving Lamp Load | 1000 Watts |
| Delay Time Adjustment | 0.5 to 10 minutes |
| Number of Modules | 1 |
| Product Dimensions | 5 x 1 x 9 cm |
| Item Weight | 110 grams |
| Batteries Required | No |
5. Installation
The Legrand LEG92758 Timer is designed for installation in an electrical panel. Ensure all power is disconnected at the main circuit breaker before proceeding.
Installation Steps:
- Power Disconnection: Turn off the main power supply to the electrical panel where the timer will be installed. Verify with a voltage tester that no power is present.
- Mounting: Mount the timer onto the DIN rail within the electrical panel.
- Wiring: Connect the timer according to the wiring diagram provided with the product packaging. The timer automatically recognizes 3-wire or 4-wire operation. Ensure all connections are secure and properly insulated.
- Load Connection: Connect the lighting circuit or other load to the timer's output terminals.
- Power Restoration: Once all connections are secure and verified, restore power to the electrical panel.
For detailed wiring diagrams, refer to the specific instructions included in the product packaging.
6. Operation
The Legrand LEG92758 Timer allows for adjustable delay control of connected loads.
Adjusting the Delay Time:
- Locate the adjustment knob on the front of the timer (refer to Image 1).
- Using a small screwdriver, carefully turn the knob to select the desired delay time. The available range is from 0.5 minutes to 10 minutes.
- After setting the delay, the timer will activate the connected load for the set duration each time it receives a trigger signal (e.g., from a push-button).
Manual Push-Button Operation:
The timer supports connection to an unlimited number of illuminated push buttons or up to 50 illuminated push buttons with a 1mA Neon indicator. Pressing a connected push button will activate the timer for the set delay period.
7. Maintenance
The Legrand LEG92758 Timer requires minimal maintenance. Follow these guidelines to ensure optimal performance and longevity:
- Cleaning: Ensure power is disconnected before cleaning. Use a soft, dry cloth to wipe the exterior of the timer. Do not use abrasive cleaners or solvents.
- Inspection: Periodically inspect the wiring connections for any signs of loosening or damage. Address any issues promptly.
- Environment: Ensure the timer is installed in a dry, well-ventilated area, free from excessive dust or corrosive substances.
8. Troubleshooting
If you encounter issues with your Legrand LEG92758 Timer, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Timer does not activate load. | No power supply; Incorrect wiring; Faulty push-button. | Check main power supply; Verify wiring connections against diagram; Test push-button functionality. |
| Load remains on continuously or does not turn off. | Delay time set to maximum or 'continuous light' mode; Internal fault. | Adjust delay knob to desired time; If problem persists, contact support. |
| Load flickers or operates erratically. | Loose wiring connections; Overload; Incompatible load type. | Check and secure all wiring; Ensure load does not exceed specifications; Verify load compatibility. |
If the problem persists after attempting these solutions, contact Legrand customer support or a qualified electrician.
9. Warranty and Support
Legrand products are manufactured to high-quality standards. For information regarding warranty coverage, technical support, or service, please refer to the warranty card included with your product or visit the official Legrand website.
Contact Information: Please refer to your regional Legrand website for local contact details.







