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Installation

ON

OFF

ON

OFF

ON

OFF

Turning OFF power.

Turn power OFF at circuit breaker (or remove fuse).

1

1

Removing wallplate and
switch.

• Remove the wallplate and switch mounting screws.
• Carefully remove switch from wall 

(do not remove wires)

.

2

2

Disconnecting switch wires.

3

3

Wiring.

• For installations involving more than one control in a wallbox,

refer to Multigang Installations before beginning.

4

4

5

5

ON

OFF

ON

OFF

ON

OFF

Turning ON power. 

• Turn power ON at circuit breaker (or replace fuse).

6

6

Lutron Electronics Co., Inc.
7200 Suter Road
Coopersburg, PA 18036-1299, U.S.A.
Made and printed in the U.S.A.  
6/09  P/N 030-1041 Rev. A

To learn about the 

Advanced Features

of 

Maestro Wall Controls including locked preset

and timer bypass disable, please visit:

www.lutron.com/maestro/advfeatures 

or call

the 

Lutron Technical Support Center

at 1.800.523.9466.

?

Technical Assistance

If you have questions concerning the installation or operation of this
product, call the 

Lutron Technical Support Center

. Please provide

exact model number when calling.

U.S.A. and Canada (24 hrs/7days) 
1.800.523.9466

México
+1.888.235.2910
Other countries 8am – 8pm ET
+1.610.282.3800

Fax +1.610.282.6311

http://www.lutron.com

030-1041

030-1041

Screw Terminals: 
Turn screws to loosen.

Push-in Terminals:
Insert screwdriver.
Pull wire out.

Wiring the Timer:

• Using the wire connector

provided, connect the 

green

ground wire on the Timer to the

bare copper

or 

green

ground

wire in the wallbox.

• Connect either of the wires

removed from the switch to one
of the 

brass

screw terminals on

the Timer, or insert fully into the
push-in terminal.

• Connect the remaining wire

removed from the switch to the
other 

brass

screw terminal on

the Timer, or insert fully into the
push-in terminal.

Ground

Green wire

Brass screw

Live

120 V~
60 Hz

Neutral

Brass

Brass

Green wire

Ground

Wallbox

Timer

Reference Wiring Diagram

Brass screw

Important Note:

Your wall switch may have two wires attached to the same screw (see
illustrations below for examples). Tape these two wires together before
disconnecting. When wiring, connect wires to the Timer the same way they
were connected to the switch.

One wire in
the push-in
terminal hole
and one to
the screw.

One
continuous
wire to the
screw.

Looped Wire:
Turn screw to
loosen.

Turn screws
to loosen.

Lutron Technical Support Center     1.800.523.9466     24 hrs / 7 days     www.lutron.com

Multigang Installations

When installing more than one control in the same wallbox, it may be
necessary to remove all inner side sections prior to wiring (see below). Using
pliers, bend side sections up and down until they break off. Repeat for each
side section to be removed. Removal of Timer side sections reduces maximum
load capacity. Refer to chart below for maximum Timer capacity.

Breaking Side Sections

Limited Warranty

(Valid only in U.S.A., Canada, Puerto Rico, and the Caribbean.)

Lutron will, at its option, repair or replace any unit that is defective in materials or manufacture within
one year after purchase. For warranty service, return unit to place of purchase or mail to Lutron at
7200 Suter Rd., Coopersburg, PA 18036-1299, postage pre-paid.

THIS WARRANTY IS IN LIEU OF ALL OTHER EXPRESS WARRANTIES, AND THE IMPLIED
WARRANTY OF MERCHANTABILITY IS LIMITED TO ONE YEAR FROM PURCHASE. THIS WARRANTY
DOES NOT COVER THE COST OF INSTALLATION, REMOVAL OR REINSTALLATION, OR DAMAGE
RESULTING FROM MISUSE, ABUSE, OR DAMAGE FROM IMPROPER WIRING OR INSTALLATION.
THIS WARRANTY DOES NOT COVER INCIDENTAL OR CONSEQUENTIAL DAMAGES. LUTRON’S
LIABILITY ON ANY CLAIM FOR DAMAGES ARISING OUT OF OR IN CONNECTION WITH THE
MANUFACTURE, SALE, INSTALLATION, DELIVERY, OR USE OF THE UNIT SHALL NEVER EXCEED THE
PURCHASE PRICE OF THE UNIT.

This warranty gives you specific legal rights, and you may have other rights which vary from state to
state. Some states do not allow the exclusion or limitation of incidental or consequential damages, or
limitation on how long an implied warranty may last, so the above limitations may not apply to you.
This product is covered under one or more of the following U.S. patents: 7,190,125; 7,365,282;
7,546,473 and corresponding foreign patents. U.S. and foreign patents pending. Lutron, Claro, Maestro
and Satin Colors are registered trademarks, and FASS is a trademark of Lutron Electronics Co., Inc.
NEC is a registered trademark of the National Fire Protection Association, Quincy, Massachusetts.
© 2009 Lutron Electronics Co., Inc.

No Sides
Removed

600 W

600 VA / 450 W

3 A

1 Side
Removed

500 W

500 VA / 400 W

3 A

2 Sides
Removed

400 W

400 VA / 300 W

3 A

English

Maximum Load

Do Not Remove
Outside Sections

Each Control Has
Inside Section
Removed

Middle Control Has Two
Side Sections Removed

Important Notes

Please read before installing.

1.

CAUTION! 

To avoid overheating and possible damage to other

equipment, do not use to control receptacles, fluorescent lighting
fixtures, motor-operated or transformer-supplied appliances.

2.

Install in accordance with all national and local electrical codes.

3.

Do not use for loads switched from 2 or more locations.

4.

DO NOT

use Maestro

®

controls for compact fluorescent lamps.

5.

When no “grounding means” exist within the wallbox then the NEC

®

2008, Article 404-9 allows a control without a grounding connection to
be installed as a replacement, as long as a plastic, noncombustible
wallplate is used. For this type of installation, cap or remove the green
ground wire on the control and use an appropriate wallplate such as
Lutron’s Claro

®

or Satin Colors

®

series wallplates.

6.

Protect Timer from dust, dirt, and paint when spackling or painting.

7.

Do not use where total load current is less than 0.3 A or greater than 
5 A (see Timer Capacity Chart for details).

8.

Operate between 0 °C (32 °F) and 40 °C (104 °F).

9.

Timer may feel warm to the touch during normal operation.

10.

Recommended wallbox depth is 2 ½ in (64 mm) minimum.

11.

For safety reasons, do not use to control fixtures that are the only
source of illumination for an area.

12.

When controlling a combined fan and light load, the total load may not
exceed 3 A.

13. Clean Timer with a 

soft damp cloth only.

Do not use any chemical cleaners.

Countdown Timer

MA-T51

120 V

60 Hz  

5 A Lighting* or 3 A Fan

MA-T530G

120 V

60 Hz  

5 A Lighting* or 3 A Fan

Important Wiring Information

When making wire connections, follow the recommended strip lengths and
combinations for the supplied wire connector.

Note: 

All wire connectors

provided are suitable for 

copper wire only.

For aluminum wire, consult an

electrician.

Wire Connector:

Use to join one 12 AWG or 14 AWG 
(2.5 or 1.5 mm

2

) ground wire with one 

18 AWG (0.7 mm

2

) control ground wire.

Twist wire
connector

tight.

Push-in Terminals: Insert wires fully.
NOTE:

Push-in terminals are for use with 14 AWG

(1.5 mm

2

solid copper wire only. DO NOT use stranded or

twisted wire.

Screw Terminals: Tighten securely.

Screw terminals are for use with 12 or 14 AWG 
(2.5 or 1.5 mm

2

)

solid copper wire only. DO NOT use

stranded or twisted wire.

Trim or strip wallbox wires to the length indicated by the strip gauge on the back of the control 

OR

Symptom

Load does not turn
ON or no LEDs turn
ON.

Possible Cause

• Front Accessible Service Switch (FASS

TM

) on 

Timer is pulled out to OFF

• Light bulb(s) burned out.
• Breaker is off or tripped.
• Wiring error. Call 

Lutron Technical Support Center

Troubleshooting

IMPORTANT NOTICE:

To replace bulb, remove power by pulling the 

FASS switch out on the Control.

For any procedure other than routine bulb replacement, power must be
disconnected at the main electrical panel.

Load Type

Halogen/Incandescent
120 V~ 

Magnetic Low Voltage**

General Purpose Fan

Mounting Control(s) to wallbox.

• Form wires carefully into wallbox, mount and align control(s).
•  Install the wallplate(s

).

Load turns on and off
repeatedly.

• Load draws less than 0.3 A or 40 W
• Improper load connected

Light or
Fan
Fixture(s)

**Note: The maximum lamp wattage is determined by the efficiency of the transformer, with 70–85% as
typical. For actual transformer efficiency, contact either the fixture or transformer manufacturer. The total VA
rating of the transformer(s) shall not exceed the VA rating of the timer.

Note:

Do not overtighten mounting screws. Permanent damage 

can be caused by overtightening mounting screws.

Snap on 

Claro

wallplate.

Start screws.

Align control and

tighten screws.

*See Timer Capacity Chart.

Timer Capacity Chart

Operation

Tap Button Options

Tap once when unit is off

Controlled load turns ON 
and countdown timer begins.

When time expires, load turns OFF.

Tap once when unit is on -

Controlled load turns OFF 
and countdown timer resets.

Tap twice quickly -

Controlled load turns on with 
30 minute countdown timer.

Press to increase time
Press to reduce time

LEDs 

• Orange LEDs indicate

timer duration or
remaining time in
minutes

• Bottom LED blinks

slowly to indicate 1
minute of time
remaining.

FASS - Front Accessible 

Service Switch

One Minute Indication:

When only one minute of time is remaining, the load will briefly turn off and on to give 
an indication the timer is about to turn off.

MA-T530G

Tap Button Options

Tap once when unit is off

Controlled load turns ON 
and countdown timer begins.

When time expires, load turns OFF.

Tap once when unit is on -

Controlled load turns OFF 
and countdown timer resets.

Tap twice quickly -

Controlled load turns on 
without a time limit

Press to increase time
Press to reduce time

LEDs 

• Orange LEDs indicate

timer duration or
remaining time in
minutes

• Top green LED labeled

On has no time limit

• Bottom LED blinks

rapidly to indicate 1
minute of time
remaining.

FASS - Front Accessible 

Service Switch

MA-T51

WARNING

S

hock Hazard.  May re

s

ult in 

s

eriou

s

 injury or 

death.  Turn off power at circuit breaker before 
in

s

talling unit.

http://waterheatertimer.org/Countdown-timer-horsepower-ratings.html

  

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