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Wiring

A

. Single Line Wiring

2

Connect sensor switch

WARNING! Shock Hazard.

 May result in serious injury or death. 

Turn power OFF at circuit breakers before installing the unit.

1

Turn power OFF

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Dual Circuit  

Dual Technology Sensor 

Switch Installation Guide

Lighting

120-277 V

~

  50 / 60 Hz  6 A

Fan

120 V

~

  50 / 60 Hz  4.4 A  1/6 HP

Combined lighting and fan load

120 V

~

  50 / 60 Hz  4.4 A

MS-B202 WMS-B202

Occupancy

P/N 032568  Rev. A  
10/2020

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 five years 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 FIVE years 

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.
Lutron and Maestro are trademarks or registered 

trademarks of Lutron Electronics Co., Inc. in the US 

and/or other countries.  
© 2013-2020 Lutron Electronics Co., Inc.

Major motion coverage:  

30 ft × 30 ft (9 m × 9 m) [900 ft

2

 (81 m

2

)]

Minor motion coverage:  

20 ft × 20 ft (6 m × 6 m) [400 ft

2

 (36 m

2

)] 

3

Turn Power ON

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Troubleshooting

Symptoms

Possible Solutions

Sensor switch is 
unpowered, or is 
powered, but does 
not turn lights ON.

• If installed in a 3-way with another 

mechanical switch, be sure to 
rewire the mechanical switch using 
Wiring step 2B.

Power can’t be 
switched ON or OFF 
with newly installed 
sensor switch.

• Check wiring; neutral wire must be 

connected for product to function.

Lights do not turn 
ON when space is 
occupied.

• Off-While-Occupied mode is 

Enabled and the timeout has not 
expired.

• Sensor mode is set to vacancy.
• Sensor is set to one of the Ambient 

Light Detection (ALD) settings 
and the room is too bright for the 
current light level setting.

• Sensor does not have full view of 

the room. Move objects blocking 
sensor’s line-of-sight.

  Before installing wallplate, program all desired settings. See back for programming instructions.

•  For additional wiring instructions, including wiring for two separate breaker feeds, please visit  

www.lutron.com/DTMaestroInstall

• 

 Rewire your mechanical switch in a 3-way. 3-way wiring for sensor switch is different than 

traditional 3-way wiring.

For additional features, wiring help, 

troubleshooting, and product information 

please visit:

  

www.lutron.com / DTMaestroInstall

 

4

Wait for 2 minutes

• 

The sensor switch will manually control the load after the first 10 seconds.

•  Once power has been restored, the sensor switch will automatically control the  

load after the first 2 minutes.

Important Notes

Please read before installing.

 

1.

 Neutral wire required.

 2.

 Device will not function if Black wires (Circuit 1/

Line 1) are not wired.

 3.

 This product is rated to control 6 A 

per circuit

Circuits may NOT be wired in parallel to control 

loads greater than 6 A.

 4.

 When power is applied, the sensor switch can be 

manually turned on or off after the first  

10 seconds and will automatically control the 

load after 2 minutes.

 5.

 

CAUTION:

 

Risk of Electric Shock

 — More than 

one disconnect switch may be required to de-

energize the equipment before installing the unit, 

rewiring, or replacing bulbs. 

 6.

 The sensor switch requires an unobstructed view 

of the room and line-of-sight to detect motion.

 7.

 Hot objects or moving air currents can affect the 

performance of the sensor switch and may cause 

the sensor to turn on unexpectedly or maintain 

its current state longer than desired. 

 8.

 

CAUTION:

 To reduce the risk of overheating and 

possible damage to other equipment,  

DO NOT

 use to control receptacles.

 9.

 Install in accordance with all national and local 

electrical codes.

 10.

 For indoor use only. Operate between 32 °F and 

104 °F (0 °C and 40 °C).

 11.

 Clean with a soft damp cloth only. 

DO NOT

 use 

any chemical cleaners.

B

. 3-Way with Mechanical Switch

m

30

15

5

1

Occ

Lrn

Fixd

Vac

Mode

Hi

Med

Low

Off

Hi

Med

Low

Min

PIR

Neutral

Black 

1

Black 

1

Load 1

Load 2

Green

Black-Orange

White

Line/Hot

Blue

Black-Orange

m

30

15

5

1

Occ

LRN

Fixd

Vac

Mode

Hi

Med

Low

Off

Hi

Med

Low

Min

PIR

m

30

15

5

1

Occ

Lrn

Fixd

Vac

Mode

Hi

Med

Low

Off

Hi

Med

Low

Min

PIR

Black 

1

Blue

Ground

Two Circuit 

Switch

Green

Ground

120–277 V

~

 

50 / 60  Hz

Line / Hot

Load 2

Standard  

Mechanical Switch 

2,3

Black 

1

Yellow jumper  

wire (included)

Different 

color 

screw

Neutral

Load 1

White

Black-Orange

  Two Line Wiring:

  Wiring must comply with NEC code for wiring Multiple Branch Circuits: Where two or more branch 

circuits supply devices or equipment on the same yoke, a means to simultaneously disconnect 

the ungrounded conductors supplying those devices shall be provided at the point at which the 

branch circuits originate.

Two circuits, each rated at:

Black-Orange

Ground

1

 Device will not function if Black wires are not wired.

2

 Mechanical switch may be wired to either circuit, and will control both. 

Do NOT

 wire mechanical switch to both circuits.

3

 You may use no more than one mechanical switch with a Dual circuit Dual Tech sensor switch.

Lutron Electronics Co., Inc. 
7200 Suter Road 
Coopersburg, PA 18036-1299

www.lutron.com

English

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