Frequently Asked Questions

Dimmer
P/N 041711 REV A
EnglishEnglish
Please read before installing.
For the compatible bulb list, please visit
www.lutron.com/ledfinder
If dimming LED or CFL
bulbs, they must be Lutron
compatible for optimal
performance!
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OFF
WARNING: SHOCK HAZARD.
May result in serious injury or death. Turn off
power at circuit breaker or fuse before installing.
1
Turn power OFF at circuit breaker
Ground wire (bare or green)
Brass
Black
Green wire
Dimmer / Switch
3
Determine wiring configuration
Ground wire
(bare or green)
IMPORTANT
Ground wire
(bare or green)
Ground wire
(bare or green)
Green wire
Green wire
Brass/
Red
Blue
Black
Dimmer OR
Companion
Dimmer
Blue
Black
Brass
Marked wire
Marked wire
Dimmer OR
Companion Dimmer
One to breaker and
one to light(s)
FOR ILLUSTRATION
PURPOSES ONLY
(DO NOT DISCONNECT)
For lights switched from one location:
3A
OR
For lights switched from two locations:
NOTE: Only one master control can be used per circuit.
NOTE: Dimmer may be wired on the line side, load side, or in the middle. Up to
nine companion dimmers may be used. See the links in the Help section to the left
for more information.
3B
For lights switched from three or more locations:
3C
Fully wrap the wires around the screw and tighten (A), or strip insulated wires to
1/2 in (13 mm) and insert into the push-in terminals (B). Solid copper wire only.
OR
14 AWG ONLY
1/2 in
(13 mm)
B
Strip length
OR
Dimmer OR
Companion Dimmer
Blue
Brass/
Red
Black
Ground wire
(bare or green)
Green wire
Different-
colored
screw
Ground wire
(bare or green)
IMPORTANT:
Tag or mark the
common wire on
existing 3-way
devices. This is usually
connected to a darker
(or different) colored
screw than the others.
This does NOT include
the ground screw.
Green
wire
Dimmer OR
Companion Dimmer
Black
Brass
Blue
Marked
wire
Ground wire
(bare or green)
Dimmer OR
Companion Dimmer
Brass/
Red
Black
Marked
wire
Ground wire
(bare or green)
Green wire
Blue
Different-
colored
screw
Ground wire
(bare or green)
IMPORTANT:
Tag or mark the
common wire on both
existing devices. This
is usually connected to
a darker (or different)
colored screw than the
others. This does NOT
include the ground
screw.
12 / 14 AWG
A
(continued on next page)
NOTE: Only one master control can be used per circuit.
Maestro C•L PRO RF Dimmer
RRD-PRO
120 V~ 50 / 60 Hz
Companion Dimmer (for 3-way wiring)
RD-RD
120 V~ 60 Hz 8.3 A
250 W
LED / CFL
500 W
Inc. / Hal. / ELV
400 VA
MLV
2
Load Types and Operation
Note: For dimming MLV fixtures, the maximum lamp wattage
is typically 70%-85% of the transformer’s VA rating. For actual
transformer efficiency, contact the manufacturer. The total VA rating of
the transformer(s) shall not exceed the VA rating of the dimmer.
Load Type
Minimum
Load
Maximum Load
Neutral
Required
Phase
Mode
Single Gang
End of
Gang
Middle of
Gang
LED 1 bulb 250 W 200 W 150 W Optional * Either
CFL 1 bulb 250 W 200 W 150 W Optional * Forward
MLV
Transformer
with LEDs
See Application Note #559 (P/N 048559) at www.lutron.com
Forward
ELV
Transformer
with LEDs
Reverse
MLV
Transformer
with Halogen
10 W
400 VA
(300 W)
No Derating Required Required Forward
ELV
Transformer
with Halogen
10 W 500 W 400 W 300 W Required Reverse
Incandescent /
Halogen
5 W 500 W 400 W 300 W Optional * Either
Dimmable
Fluorescent
Ballast
1 ballast
3.3 A
(400 VA)
No Derating Required Required Forward
Hi-lume 1%
2-wire
(LTE) LED
Driver
1 driver
3.3 A
(400 W)
20 drivers
max.
No Derating Required Required Forward
PHPM-PA / 3F
and GRX-TVI
1 interface 3 Interfaces No Derating Required Required Forward
* Neutral is recommended for best dimming performance,
if available, but is not required for this load type.
1. CAUTION: Use only with permanently installed fixtures with dimmable
screw-in LED, dimmable self-ballasted compact fluorescent, halogen, or
incandescent lamps. Use only to control the primary side of permanently
installed transformer supplied low-voltage lighting, or in combination with
incandescent lamps. To reduce the risk of overheating and possible damage
to other equipment DO NOT use to control receptacles, fluorescent lighting
fixtures, non-ballasted or externally ballasted compact fluorescent lamps,
motor operated appliances or transformer supplied appliances.
2. If connecting loads other than Incandescent / Halogen, screw-in CFLs, or
screw-in LEDs, the neutral wire must be connected. See the Load Types and
Operation chart for more information.
3. Neutral is highly recommended for CFLs.
4. Install in accordance with all national and local electrical codes.
5. When no “grounding means” exist within the wallbox, the NEC® 2011, 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.
6. Protect the dimmer from dust and dirt when painting or spackling
the wall.
7. This dimmer is not compatible with standard 3-way or 4-way switches. Use
only with Lutron companion dimmers listed above.
8. In any 3-way / 4-way circuit use only one dimmer with up to
9 companion dimmers.
9. Maximum wire length between the dimmer and the farthest companion
dimmer is 150 ft (45 m).
10. Operate between 32 °F and 104 °F (0 °C and 40 °C).
11. It is normal for the dimmers to feel warm to the touch during operation.
12. Clean the dimmer with a soft damp cloth only. Do not use
any chemical cleaners.
13. For indoor use only.
14. Tighten screw terminals securely to 5 in-lb (0.55 N•m).
15. Fully wrap 14 AWG / 12 AWG (1.5 mm
2
/ 4.0 mm
2
)wires around the screw and
tighten, or strip insulated 14 AWG (1.5 mm
2
) wires to 1/2 in (13 mm) and insert
into the push-in terminals.
A
A
Hot
A
B
B
A
Load
NOTE: Dimmer may be wired on the line side, load side, or in the middle. Up to
nine companion dimmers may be used. See the links in the Help section to the left
for more information.