background image

 

Identifying the Circuit Type and Tagging the Wire on the COMMON Terminal  

of the Switches

3a – Single Location Control

3b – Two-Location Control

3c – Three or More-Location Control

Once the Dimmer/Switch learns the Wireless Controller, the Dimmer/Switch’s LED(s) 

and load will flash 3 times and it will exit Set-Up mode.

Repeat steps 1 —3 to set up multiple Wireless Controllers to a single Dimmer or Switch. 

Repeat steps 1 —3 to set up a single Wireless Controller to multiple Dimmers/Switches.

Important:

 Set up Wireless Controller to a Dimmer/Switch before use.

Press and hold the Dimmer/Switch’s Tap Button (Figure 1) for approximately 6 seconds. 

Once the LED(s) start to blink slowly,  

release the Tap Button. 

Press and hold the Off Button on the Wireless Controller (Figure 2) for approximately  

6 seconds.

Removing Wireless Controller

To remove a previously set up Wireless Controller tap the Wireless Controller’s On button 

three times, on the third tap hold for 3 seconds and then tap 3 more times. This will 

remove all Dimmers/Switches it was previously setup with.

Pressing the Preset Button will cause each Dimmer/Switch to return to it’s favorite light setting. 

To save a favorite light setting, adjust all the Dimmers/Switches controlled by a Wireless 

Controller to the desired light setting. Then press and hold the Preset Button on the Wireless 

Controller for approximately 6 seconds until all LEDs on the Dimmers/Switches stop blinking.

Wireless

®

English

Lutron Electronics Co., Inc.

7200 Suter Road

Coopersburg, PA 18036-1299, U.S.A.

Made and Printed in U.S.A. 10/09 P/N 030-1126 Rev. A

Halogen / Incandescent Dimmer  

with Radio Frequency Receiver

MRF2-600M 

120 V   60 Hz  600 W  

(Single-Pole or Multi-Location) 

1.  Install in accordance with all national and local electrical codes. 
2.   When no “grounding means” exist within the wallbox, then the NEC

®

 2008, Article 404.9 

allows a Dimmer without a grounding connection to be installed as a replacement, as long as 

a plastic, noncombustible wallplate is used. For this type of installation, twist a wire connector 

onto the green ground wire or remove the green ground wire on the Dimmer and use an ap-

pro pri ate wallplate such as Claro

®

 or Satin Colors

®

 series wallplates by Lutron

®

.

3.   Do not paint the Dimmers or the Companion Dimmers.

4.   The Dimmers are not compatible with standard 3-way or 4-way switches. Use only with 

Lutron

 

Companion Dimmers.

5.   In any 3-way/4-way circuit use only one Dimmer with up to 9 Companion Dimmers.

6.   Do not use where the total load is greater than the rating indicated in the Derating Chart below. 

7.   Do not use where total load is less than 50 W / VA.

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

9.  For indoor use only.

10.   It is normal for the Dimmers to feel warm to the touch during operation.

11.   Recommended minimum wallbox depth is 2.5 in (64 mm).

12.   Maximum wire length between the Dimmers and the furthest Companion Dimmer is 250 ft (76 m).

13.   Clean with a 

soft damp cloth only

Do not use any chemical cleaners.

14.

  DO NOT

 mix MRF

 

and MRF2

 

lighting controls products within the same system. Products are  

 

NOT compatible

, contact 

Lutron Technical Support Center.

15.  Controls must be mounted vertically. See stamp on control for correct positioning.

16. 

DO NOT

 wire while circuit breaker is on. Permanent damage to the Dimmer may result.

17. 

DO NOT

 use Incandescent / Halogen or Electronic Low-voltage Dimmers for Magnetic Low-    

 

voltage lighting.

18.  Up to 10 

Maestro Wireless

 controls can be configured to work together.

Multigang Installations

When installing more than one control in the same wallbox, the maximum load capacity is reduced.  
No derating is required for Companion Dimmers. Refer to the Derating Chart below.

Model

Type of Load

Single 
Gang

End of 
Gang

Middle of 
Gang

MRF2-
600M

Halogen / 
Incandescent 

600 W

500 W

400 W

*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 dimmer.

Multiple Dimmer Applications

If multiple 

Maestro

 

Wireless

 Dimmers are set up to the same Wireless Controller, they will perform  

as follows:
Pressing the On Button on the Wireless Dimmers 

• 

Controller will cause all Dimmers to turn on fully.

Pressing the Off Button on the Wireless Controller will 

• 

cause all Dimmers to turn off completely.

Pressing the Raise Button on a Wireless Controller will 

• 

cause the Dimmer to turn on and gradually  

increase the light level.
Pressing the Lower Button on a Wireless Controller will 

• 

cause the Dimmer to gradually decrease  

light level.

Tap Button Options.

Tap once when  

• 

the Dimmer is off:

 

Lights brighten smoothly 

to preset intensity.

Tap once when the 

• 

Dimmer is on:

 Lights 

dim smoothly to off.

Tap twice quickly:

• 

 

Lights brighten rapidly 

to full intensity.

Press and hold when 

• 

the Dimmer is on: 

Each time the Dimmer is 

turned off, delayed fade 

to OFF can be activated. 

As the Tap Button is 

held, the current LED 

will begin to flash. This 

flashing LED represents 

20 seconds of delay 

before the lights fade 

to OFF.

Dimming Rocker

Press to brighten.

Press to dim.

LEDs 

Light level indicators.

FASS™ - Front  

Accessible Service Switch

Important Notice:

To replace the bulb, power may be 

conveniently removed by pulling the  

FASS

 switch out on the Dimmer. 

For any procedure other than  

routine bulb replacement, power  

must be disconnected at the  

main electrical panel.

Figure 1

Light 

On

Adjust

Off

LUTRON

Figure 2

Set-Up

2

5

1

1

4

5

3

2

4

3

Trouble Shooting

Ground
(Bare Copper or 
Green Wire)

WARNING

Shock Hazard.  May result in serious injury or 

death.  Turn off power at circuit breaker before 

installing Dimmer.

ADVERTENCIA

Peligro de choque. Podría resultar en 

lesiones graves o la muerte. Desconecte la 

alimentación en el cortacircuito antes de 

instalar el Atenuador.

AVERTISSEMENT

Risque de choc. Peut provoquer des 

blessures graves et même la mort. 

Coupez le courant au disjoncteur avant 

d'installer le gradateur.

Installation

Turning Power OFF

Turn power OFF at circuit break er (or remove fuse).

Disconnecting the Switch Wires.

Important Note:

 The wall switch may have two wires attached to the same screw  

(see illustrations below for examples). Tape these two wires together before 

disconnecting. When rewiring, connect wires to the Dimmer the same way they  

were connected to the switch.

Wiring      

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.

Removing  
Wallplate and Switch

Remove the wallplate and  

switch mounting screws.

Carefully remove the switch from the wall

 (do not remove the wires).

Tag

Different colored 
screw (Common)

Ground
(bare copper or 
green wire)

Tags

Note:

 Screw 

placement may 

be different on the 

switch.

Same colored 

screw (or marked 

IN or OUT)

Ground

(bare copper  

or green wire)

One switch controlling a light fixture:

This switch will be a single-pole. The switch will 

have insulated wires connected to two screws of the 

same color plus a green ground screw.

Two switches controlling a light fixture:

Both switches will be 3-way. Each switch will 

have insulated wires connected to three screws 

plus a  green ground screw. One of these wires is 

connected to a screw of a different color (not green) 

or labeled COMMON. Tag this wire on both switches 

to identify when rewiring.

Three or more switches controlling a light fixture:

Two switches will be 3-way and any others will be 

4-way. Tag the two 3-way switches as in the Two-

Location diagram above. The 4-way switch will  

have insulated wires connected to four screws plus  

a green ground screw. Tag the two same-color 

insulated wires that are connected to opposite  

colored screws. Follow this procedure for each  

4-way switch.

One wire 

in the 

backwired 

hole and one 

to the screw.

One 

continuous  

wire to the 

screw. 

Push-in Terminals:

Insert screwdriver. 

Pull wire out.

Screw 

Terminals: 

Turn screws  

to loosen.

Looped Wire:

Turn screw to 

loosen.

Wire connector:

Use to join 14 AWG  
(1.5 mm

2

) or 12 AWG  

(2.5 mm

2

) ground 

wire(s) to 18 AWG 
(0.75 mm

2

) Dimmer 

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.  

Note: 

Screw terminals are for use  

with 12 AWG (2.5 mm

2

) or 14 AWG 

(1.5 mm

2

solid copper wire only.

 

DO NOT use stranded or twisted wire.

FCC Information:

NOTE: 

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to 

part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in 
a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed 
and used in accordance with the instructions, may cause harmful interference to radio and television reception, which 
can be determined by turning the equipment off and on. The user is encouraged to try to correct the interference by 
one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
•  Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
•   Consult the dealer or an experienced radio/TV technician for help.

Caution: 

Changes or modifications not expressly approved by Lutron Electronics Co. could void the user’s authority 

to operate this equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference and
(2)  This device must accept any interference received, including interference that may cause undesired operation.

Continued on back

030-1126

Rev. A

Symptoms

Possible Causes

Load does not turn on 

or LED(s) on Dimmer/

Switch do not light up.

FASS

• 

 switch on the Dimmer/Switch (or Companion Dimmer/Switch) is 

in the Off position.

Light bulb(s) burned out.

• 

Breaker is OFF or tripped.

• 

Load not properly installed.

• 

Wiring error. Call Lutron Technical Support Center.

• 

Light does not respond 

to Wireless Controller

The Dimmer/Switch failed to learn Wireless Controller; see 

• 

Set-Up

.

The Dimmer/Switch has already received and responded to a command 

• 

or is already at the Light Setting the Wireless Controller is requesting.

The Wireless Controller is outside the 30 ft (9 m)operating range.

• 

The Wireless Controller's battery is low.

• 

The Wireless Controller's battery is installed incorrectly.

• 

When in set-up mode 

the LEDs flash when 

trying to setup with the 

Wireless Controller or 

Sensor.

The maximum number of Wireless Controllers have been set up to 

• 

the Dimmer/Switch, You cannot add any more Wireless Controllers or 

Sensors. See 

Removing Wireless Controllers

 in 

Set-Up

.

Important Notes:  

Please read before installing.

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