1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the Schneider Electric Merten MEG5136-0000 Rotary Dimmer Switch. This device is designed for controlling lighting from 20W to 315W at 230V AC. It is suitable for both ohmic and capacitive loads, including incandescent bulbs, 230V halogen lamps, and dimmable low-voltage halogen lamps with electronic transformers.
2. Product Overview
The MEG5136-0000 is a robust and reliable dimmer insert featuring a rotary knob for brightness adjustment and an integrated push-button for switching lights on and off. It is engineered for ease of use and durability.
Key Features:
- Load Compatibility: Controls electronic transformers and incandescent bulbs (ohmic and capacitive loads).
- Integrated Switch: Equipped with a push-button switch for on/off functionality.
- Quiet Operation: Designed for hum-free performance.
- Safety Features: Resistant to short-circuits and includes overload protection to safeguard lamps and the device.
- Configuration: 1-pole, 2-way rotary dimmer.
- Power Range: Supports loads from 20W to 315W.

3. Specifications
The following table details the technical specifications of the Schneider Electric Merten MEG5136-0000 Rotary Dimmer Switch.
| Specification | Value |
|---|---|
| Manufacturer | Schneider Electric |
| Model Number | MEG5136-0000 |
| Product Dimensions (L x W x H) | 5.5 x 7.1 x 7.1 cm |
| Weight | 99.79 grams |
| Color | Silver |
| Material | Metal |
| Quantity per Pack | 1 piece |
| Batteries Required/Included | No |
| Dimmer Type | Rotary Dimmer (Phase Cut, R, C) |
| Switch Function | 1-pole, 2-way |
| Load Type Compatibility | Incandescent lamps, 230V halogen lamps, Dimmable low-voltage halogen lamps with electronic transformers |
| Power Range | 20-315 W |
| Rated Current/Voltage | 10 A at 230 V AC |
| Protection Functions | Short-circuit and overload protection with automatic reset |
| Connection Terminals | Screw terminals |
| Terminal Connection Capacity | 1.5-2.5 mm² (rigid and flexible cable) |
| Mounting Depth | 28 mm |
| Protection Class (IP) | IP20 |


4. Installation
Important Safety Information: Installation must be performed by a qualified electrician in accordance with all local and national electrical codes. Always disconnect power at the main circuit breaker before beginning any electrical work.
Installation Steps:
- Prepare Wiring: Ensure the power supply to the circuit is turned off. Strip approximately 10-12mm of insulation from the ends of the electrical wires.
- Connect Wires: Refer to the wiring diagram on the back of the dimmer module (Figure 4.1). Connect the live (L) wire, switched live (L with arrow or X), and neutral (N) if applicable, to the corresponding screw terminals. The quick-thread screws and clear connection possibilities facilitate simple mounting.
- Mount Dimmer Insert: Place the dimmer insert into the wall box. Use the alignment marks and long claws to secure it firmly.
- Attach Faceplate: Secure the decorative faceplate and rotary knob (sold separately) onto the dimmer insert.
- Restore Power: Once installation is complete and all connections are secure, restore power to the circuit at the main circuit breaker.


Post-Installation Verification: The design allows for verification of installed switches without complete disassembly, simplifying checks.
5. Operation
Operating the Schneider Electric Merten MEG5136-0000 Rotary Dimmer Switch is straightforward:
- Switching On/Off: Press the rotary knob firmly to switch the connected lights on or off.
- Adjusting Brightness: Rotate the knob clockwise to increase light brightness and counter-clockwise to decrease it.
6. Maintenance
The Schneider Electric Merten MEG5136-0000 Dimmer Switch requires minimal maintenance to ensure long-term performance.
- Cleaning: To clean the surface of the dimmer, use a soft, dry cloth. Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish or internal components.
- Inspection: Periodically inspect the dimmer for any visible damage or loose connections. If any issues are found, disconnect power and consult a qualified electrician.
No user-serviceable parts are inside the dimmer module. Do not attempt to open or repair the unit yourself.
7. Troubleshooting
If you encounter issues with your dimmer switch, refer to the following common problems and solutions:
- Lights do not turn on:
- Check if the main circuit breaker is tripped.
- Ensure the dimmer is correctly wired and connections are secure (consult a qualified electrician).
- Verify that the light bulb(s) are functional and correctly installed.
- Lights do not dim or flicker:
- Confirm that the connected light source is dimmable and compatible with a phase-cut (R, C) dimmer.
- Ensure the total wattage of the connected lights is within the dimmer's specified range (20-315W).
- Check for loose wiring connections.
- The dimmer has overload protection; if it has been overloaded, it may temporarily cease to function. Reduce the load and allow it to reset.
- Dimmer feels warm:
- It is normal for dimmers to generate some heat during operation. However, if it feels excessively hot, ensure the load is within the specified range and there is adequate ventilation in the wall box. If the issue persists, consult an electrician.
For problems not listed here or if troubleshooting steps do not resolve the issue, contact Schneider Electric customer support or a qualified electrician.
8. Warranty and Support
Warranty Information:
The Schneider Electric Merten MEG5136-0000 Rotary Dimmer Switch comes with a contractual warranty of 18 months from the date of purchase. Please retain your proof of purchase for warranty claims.
Customer Support:
For technical assistance, product inquiries, or warranty claims, please contact Schneider Electric customer service through their official website or local support channels. Refer to the product packaging or Schneider Electric's official website for contact details.





