Maestro LED Dimmer 3-Way 4-Way Install Tips

Warning: Shock Hazard. May result in serious injury or death.
Turn off the power at the circuit breaker or fuse before installing.
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Before You Begin
Before installing your Maestro LED+ dimmer, have the following items available: 
 Maestro LED+ Dimmer and Companion* Flathead Screwdriver 
<img src='https://lutron.my.salesforce-sites.com/publicknowledge/servlet/rtaImage…; alt='Maestro LED+ Dimmer and Companion' height='216' width='278' style='float: left;'></img> <img src='https://lutron.my.salesforce-sites.com/publicknowledge/servlet/rtaImage…; alt='Flathead screwdriver vector image' height='48' width='127'></img> 
Phillips-head Screwdriver 
<img src='https://lutron.my.salesforce-sites.com/publicknowledge/servlet/rtaImage…; alt='Phillips-head screwdriver vector image' height='39' width='124'></img>
Pliers
<img src='https://lutron.my.salesforce-sites.com/publicknowledge/servlet/rtaImage…; alt='Pliers vector image' height='46' width='100'></img>
* In a 3-way installation a mechanical switch can be used in place of a Maestro Companion Dimmer if the mechanical switch is rewired, and the dimmer is reprogrammed for use with a switch. Only one Maestro LED+ dimmer can be installed in a lighting circuit. To dim from more than one location, install Maestro Companion Dimmers.
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<h2 align='center' style='text-align: center;margin: 2pt 0in 0in;line-height: 107%;break-after: avoid;font-size: 13pt;font-family: 'Calibri Light', sans-serif;color: rgb(47, 84, 150);font-weight: normal;'>Maestro LED+ Dimmer Installation Video For 3-ways Or 4-ways: </h2>
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<iframe frameborder='0' scrolling='auto' width='560' height='315' style='display: table;margin-left: auto;margin-right: auto;' src='https://www.youtube.com/embed/wFw57wMSXKk?si=zrXL4qGEF_U6Y0_E' title='YouTube video player' allowfullscreen='allowfullscreen'></iframe>
Most Rewatched Steps: <a class='video-link' data-toggle='modal' data-target='#video-modal-dialog' data-backdrop='static' data-keyboard='false' data-video-title='Video' data-video-url='https://www.youtube-nocookie.com/embed/wFw57wMSXKk?rel=0'>Rewire existing 3-way switch</a> | <a class='video-link' data-toggle='modal' data-target='#video-modal-dialog' data-backdrop='static' data-keyboard='false' data-video-title='Video' data-video-url='https://www.youtube-nocookie.com/embed/wFw57wMSXKk?rel=0'>Reprogram dimmer for use with a switch</a>.
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<h2 align='center' style='text-align: center;margin: 2pt 0in 0in;line-height: 107%;break-after: avoid;font-size: 13pt;font-family: 'Calibri Light', sans-serif;color: rgb(47, 84, 150);font-weight: normal;'>I want to install my Maestro LED+ dimmer with a…</h2>
 
<a target='_self' href='#threewaycompanion'>Maestro Companion Dimmer</a> <a target='_self' href='#threewaymechanical'>Existing Mechanical Switch</a>
 (Switches/dims light) (Switches light on/off) 
 <img src='https://lutron.my.salesforce-sites.com/publicknowledge/servlet/rtaImage…; <img alt='A close-up of a switchDescription automatically generated' height='100' width='43' src='https://lutron.my.salesforce-sites.com/publicknowledge/servlet/rtaImage…; style='background-color: var(--lwc-colorbackgroundalt, #fff);color: var(--slds-g-color-neutral-base-10, #181818);font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';font-size: 13px;text-indent: 0.5in;'></img> 
 
When wiring in a 3-way use only one Maestro LED+ Dimmer (MACL-153M*) with one Maestro Companion Dimmer (models: MA-R*, MA-RR*, or MSC-AD*) or one existing 3-way mechanical switch.
 
When the Maestro LED+ dimmer is installed with a mechanical switch, you must rewire the mechanical switch with the included yellow jumper wire and program the dimmer for use with a mechanical switch to function properly. Click here for steps on <a class='video-link' data-toggle='modal' data-target='#video-modal-dialog' data-backdrop='static' data-keyboard='false' data-video-title='programming your Maestro dimmer with a mechanical switch' data-video-url='https://www.youtube-nocookie.com/embed/wFw57wMSXKk?rel=0'>programming your Maestro dimmer with a mechanical switch</a>.
 
For 4-way wiring, you must use only one Maestro LED+ Dimmer and 2 or more Maestro Companion Dimmers (models: MA-R*, MA-RR*, or MSC-AD*). This dimmer will not function in a 4-way with any mechanical switches.
 
*Base model numbers are shown. Characters that appear after the model numbers listed above indicate the packaging or color of the product. They do not affect how the device operates or installs.
 
 
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 <a id='threewaycompanion' target='_blank'></a>MACL-153M MA-R 
<a href='https://webtools.lutron.com/wiringwizard/us/en?id=r439&p=q1,q371:a4…; target='_blank'><img src='https://lutron.my.salesforce-sites.com/publicknowledge/servlet/rtaImage…; <img src='https://lutron.my.salesforce-sites.com/publicknowledge/servlet/rtaImage…; 
 
<a href='https://webtools.lutron.com/wiringwizard/us/en?id=r439&p=q1,q371:a4…; target='_blank'>Installing A Maestro LED+ Dimmer With One Maestro Companion Dimmer In A 3-way</a>
The Maestro LED+ dimmer can be installed at the line-side or the load-side electrical box in a 3-way with a Maestro MA-R, MA-RR, or MSC-AD companion dimmer.
Only one Maestro LED+ dimmer can be installed per lighting circuit. The other location must use a Maestro companion dimmer.
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 <a id='fourwaycompanion' target='_blank'></a>MACL-153M MA-R MA-R 
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<a id='fourway' target='_blank' href='https://webtools.lutron.com/wiringwizard/us/en?id=r503&p=q1,q371:a4… src='https://lutron.my.salesforce-sites.com/publicknowledge/servlet/rtaImage…; <a style='font-size: 11pt;background-color: var(--lwc-colorbackgroundalt, #fff);color: var(--slds-g-color-neutral-base-10, #181818);' target='_blank'> <img src='https://lutron.my.salesforce-sites.com/publicknowledge/servlet/rtaImage…; </a> <img src='https://lutron.my.salesforce-sites.com/publicknowledge/servlet/rtaImage… style='font-size: 11pt;color: var(--slds-g-color-neutral-base-10, #181818);background-color: var(--lwc-colorbackgroundalt, #fff);'> 
 
<a href='https://webtools.lutron.com/wiringwizard/us/en?id=r503&p=q1,q371:a4…; target='_blank'>Installing A Maestro LED+ Dimmer With Multiple Maestro Companion Dimmers In A 4-way</a>
The Maestro LED+ dimmer can be installed in any wallbox in a 4-way with Maestro companion dimmers. It will not function if installed in a 4-way with mechanical switches. Click the link above for more information on installing Maestro devices in a 4-way.
 
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 <a id='threewaymechanical' target='_blank'></a>MACL-153M On/Off Switch 
<a id='mechanicalswitch' target='_blank' href='https://webtools.lutron.com/wiringwizard/us/en?id=r395&p=q1,q371:a4… src='https://lutron.my.salesforce-sites.com/publicknowledge/servlet/rtaImage…; <a href='https://webtools.lutron.com/wiringwizard/us/en?id=r395&p=q1,q371:a4…; target='_blank'><img alt='A close-up of a switchDescription automatically generated' height='100' width='43' src='https://lutron.my.salesforce-sites.com/publicknowledge/servlet/rtaImage… target='_blank'></a>
 
<a href='https://webtools.lutron.com/wiringwizard/us/en?id=r395&p=q1,q371:a4…; target='_blank'>Installing A Maestro LED+ Dimmer With An Existing Mechanical Switch In A 3-way</a>
The Maestro LED+ Dimmer can be installed with a mechanical switch in a 3-way if <a class='video-link' data-toggle='modal' data-target='#video-modal-dialog' data-backdrop='static' data-keyboard='false' data-video-title='Video' data-video-url='https://www.youtube-nocookie.com/embed/wFw57wMSXKk?rel=0'>the mechanical switch is rewired</a> and the Maestro dimmer is <a href='https://assets.lutron.com/a/documents/048459.pdf#page=16' target='_blank'>programmed for use with a switch</a>. 
The dimmer can be installed at either electrical wallbox when installed in a 3-way with a mechanical switch. If the existing switch is not rewired and the dimmer is not reprogrammed the dimmer will not function properly.
 
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Multiple MACL-153M Dimmers
 
<img src='https://lutron.my.salesforce-sites.com/publicknowledge/servlet/rtaImage…; width='114' height='113'></img>
 
Only one Maestro LED+ dimmer can be installed in a lighting circuit. For additional control locations, install Maestro companion dimmers (for 3-way and 4-way installations) or a single three-way switch (for 3-way installations only).
 
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Related Articles
Looking for more detailed information about Maestro dimmers? Click here to review the <a href='https://support.lutron.com/us/en/product/maestro/article/product-select…; target='_self'>Selecting a Maestro Dimmer</a> article for additional product specifications.

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This article provides tips and resources when installing a Maestro LED+ dimmer in a 3-way with a mechanical switch or in a 3-way or 4-way with Maestro companion dimmers.

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Maestro LED Dimmer 3-Way 4-Way Install Tips

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Maestro LED Dimmer 3-Way 4-Way Install Tips

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This article provides tips and resources when installing a Maestro LED+ dimmer in a 3-way with a mechanical switch or in a 3-way or 4-way with Maestro companion dimmers.

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Maestro LED Dimmer 3-Way 4-Way Install Tips

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