Lutron LUT-MLC Installation and User Manual

Introduction

The Lutron LUT-MLC is a load device designed to ensure proper function of Lutron dimmers and switches when controlling certain LED, CFL, fluorescent, and ELV lighting loads. It helps to eliminate common issues such as flickering, ghosting (faint glow when off), or lights not turning off completely, especially in installations without a neutral connection at the switch.

Product Overview

The LUT-MLC is a compact module that integrates into your electrical system. It is designed for easy installation in a junction box or at the lighting fixture.

Image: The Lutron LUT-MLC module as it appears in its sealed plastic packaging. The label clearly shows "Lutron LUT-MLC" and a barcode with the number 0027557975353. This image provides a visual reference for identifying the product.

Image: The Lutron LUT-MLC module shown alongside its included English installation sheet. The sheet title reads "Wiring the LUT-MLC" and specifies its use for switches controlling CFL, LED, and Fluorescent lighting without a neutral connection. This image confirms the product's purpose and the availability of printed instructions.

Setup and Installation

The LUT-MLC is designed for straightforward installation. It should be wired in parallel with the lighting load. Always ensure power is turned off at the circuit breaker before beginning any electrical work.

Installation Steps:

1. Turn off power: Locate the circuit breaker controlling the light fixture and turn it off. Verify that power is off using a voltage tester.
2. Access wiring: Open the junction box or the lighting fixture where the LUT-MLC will be installed.
3. Connect one lead: Connect one lead of the LUT-MLC to the neutral (white) wire of the lighting circuit.
4. Connect the other lead: Connect the other lead of the LUT-MLC to the switched hot (black) wire of the lighting circuit.
5. Secure connections: Use appropriate wire connectors (e.g., wire nuts) to secure all connections.
6. Mount the device: Tuck the LUT-MLC and wiring neatly into the junction box or fixture.
7. Restore power: Close the junction box or fixture and restore power at the circuit breaker.

Image: A detailed wiring diagram illustrating how to install the Lutron LUT-MLC in a junction box. It shows one lead connected to the neutral (white) wire and the other to the switched hot (black) wire, in parallel with the load. This visual guide is essential for correct installation.

For optimal performance, ensure all connections are secure and follow local electrical codes.

Operation

The Lutron LUT-MLC operates passively by providing a minimum load to the circuit. This minimum load is often required by certain dimmers and switches, particularly those designed for traditional incandescent bulbs, to function correctly with low-wattage LED, CFL, or ELV loads. When installed, the LUT-MLC ensures that the dimmer or switch has sufficient load to properly detect the "off" state, thereby preventing issues like ghosting or flickering.

Maintenance

The Lutron LUT-MLC is a sealed, maintenance-free device. No user-serviceable parts are inside. If the device appears damaged or is not functioning as expected, it should be replaced by a qualified electrician.

Troubleshooting

If you experience issues after installing the LUT-MLC, consider the following troubleshooting steps:

• Lights still flickering or glowing:
  • Double-check all wiring connections to ensure they are secure and correctly installed according to the diagram (neutral to neutral, switched hot to switched hot).
  • Verify that the power to the circuit was completely off during installation.
  • Ensure the lighting load is compatible with the dimmer/switch and the LUT-MLC.
  • In some rare cases, if connecting to neutral does not resolve the issue, some users have reported success connecting one lead of the LUT-MLC to the ground wire instead of the neutral, alongside the switched hot. This is not the standard installation and should only be attempted by a qualified electrician after careful consideration and local code compliance.
• No change in light behavior:
  • Confirm that the LUT-MLC is properly connected in parallel with the load, not in series.
  • Ensure the dimmer or switch itself is functioning correctly.
• Buzzing sound from the device:
  • A faint buzzing sound can sometimes occur with load devices. If the buzzing is loud or accompanied by other issues, disconnect power and consult a qualified electrician.

If problems persist, it is recommended to consult a qualified electrician or contact Lutron customer support.

Specifications

Warranty Information

Specific warranty details for the Lutron LUT-MLC are not provided in this manual. Please refer to the official Lutron website or contact Lutron customer service for the most current warranty information.

Support

For technical assistance, additional product information, or to report issues, please visit the official Lutron website or contact their customer support department. Contact information can typically be found on the manufacturer's website or product packaging.