Please Read Before Installing
WARNING: ELECTRIC SHOCK HAZARD. May result in Serious Injury or Death. Turn off power at circuit breaker or fuse before installing. | |
CAUTION: Use only with permanently installed fixtures with screw-in compact fluorescent, screw-in LED, halogen, or incandescent lamps. To avoid overheating and possible damage to other equipment, do not use to control receptacles, motor-driven appliances, or transformer-supplied appliances. |
- Install in accordance with all national and local electrical codes.
- For indoor use only.
- Fully wrap 14 AWG/12 AWG (1.5 mm2 /4.0 mm2) wires around the screw and tighten, or strip insulated 14 AWG (1.5 mm2) wires to 1/2 in (13 mm) and insert into the push-in terminals.
- Tighten screw terminals securely to 5 in-lb (0.55 N•m).
Limited Warranty:
lutron.com/warranty. For a physical copy of warranty information, contact 1.844.403.1795 (Mexico: 1.888.235.2910).
Scroll down and click Accept to view installation information online, or click here to print an install guide. To receive a physical copy of the installation guide call 1.844.403.1795.

5 Level Timer
MA-T51MNB
How do I find my Model Number?
Do you have the original packaging?
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If your product came in plastic packaging (a clamshell), you’ll find the model number on the front of the insert card, on the lower left corner. If your product came in a box, you’ll find the model number on the top of the box.
Most model numbers are 12-16 characters and start with a couple letters followed by a dash.

No packaging? No problem!
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The product number is on a label on the side of the dimmer or switch.*
If you’ve already installed the dimmer/switch, turn off the electricity and then remove the wallplate. Unscrew and remove the wallplate adapter, then unscrew the dimmer/switch and pull it out of the wall until you can see the label.
*Please note: The product number for Ariadni/Toggler dimmers is not on a label. It’s located directly on the front of the dimmer on the top left, or right below the on/off toggle.

Register to double your warranty period!
Walkthrough tutorial
Recommended method for first-time installers
Wiring Diagram
PDF wiring diagram
Instruction sheet
PDF instruction sheet
Instructions Do Not Match My Wiring
Examples of additional wiring scenarios
Timer/Switch Doesn't Turn On
List of potential causes and recommended solutions.
Is Someone Available at Lutron to Help Me?
Yes. Lutron specialists are available 24/7.
Technical support specialists are available 24/7
If you run into any trouble or have question on Lutron products, give us a call anytime at 1-844-403-1795 or email us at systemsupport@lutron.com
How to Use the Maestro timer/switch
How to use your timer switch.
Adjust The Maestro Timer/Switch Settings
Adjust frequently used settings
Warranty
Every Lutron dimmer includes a standard warranty.
Register your Timer/Switch
In exchange for your honest feedback, Lutron will extend the dimmer warranty for one year