text.skipToContent text.skipToNavigation

PIR Wall Switch Occupancy Sensor, 120/277V, White

WS-301-W Wattstopper
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 43ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;

The WS-301 Passive Infrared (PIR) Wall Switch Sensor turns lighting or fan loads on and off based on occupancy and ambient light level. The sensor replaces existing wall switches and fits behind a standard decorator wall plate.

  • Send
  • Save as PDF
  • Add to favorites Remove from favorites


  • Zero crossing circuitry reduces stress on the relay and results in increased sensor life
  • Adjustable time delay and sensitivity
  • Custom two-tier Fresnel lens enhances detection at the desktop level
  • Light level sensor holds lights off when ambient lighting is above the preset level
  • Patented voltage drop protection
  • Defaults to Manual-ON operation for maximum energy savings
  • 180° coverage, maximum of 900 sq ft
  • Shallow (1-inch) back housing and flying leads for easy installation
  • Optional neutral connection with break off tab to expose neutral terminals
  • Built-in light level sensor
  • 120/240/277 VAC and 347 VAC models
  • Button provides positive tactile feedback


General Info
Product Line Wattstopper
Color White
UPC Number 754182935383
Country Of Origin China
Features IR (Infrared), Motion Sensor
Switch Type Motion Sensor
Application Sector Commercial
Product Width US 3.0 in
Product Weight US 0.42 lb
Product Volume US 36.06 cu in
Product Depth US 2.48 in
Product Height US 4.8 in
Additional Information
RoHS Conformant Yes This product meets the material restrictions of Article 4 of the RoHS Directive (2011/65/EU), including Commission Delegated Directive 2015/863.
Security   Yes This product is ioXt certified
Technical Information
Response Frequency 60 Hz
Sensor Type Occupancy
Number of Buttons 1
Amperage 4.3 A
Number of Poles Single Pole
Wattage 1200 W
Mounting Type Box
Sensing Range 180 degrees,900 sq ft
Voltage 120/277 V
Connection Type Wired
Load 800W


  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 3ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;

Questions & Answers

What is the 3 way version of the WS301-W?

Asked by: GARY
Hello, The PW301W supports "Multi-way" configurations. Note: Multi-way models ensure extended coverage and full-function 3-way or 4-way control. Best Regards, Technical Support
Answered by: Justin
Date published: 2023-07-19

Can this handle 1000 Watts load at 120V ?

Asked by: Jeff
Hello Jeff, Please review the following load information for part WS301W. WS-301 Voltages............................................ 120 or 240/277VAC, 50/60Hz Load Requirements @ 120VAC ............ 0~1000W ballast, E-ballast, LED, tungsten, 1/4 hp @ 240/277VAC .................0~1200W ballast, E- ballast & LED, 1/4 hp Best Regards, Technical Support
Answered by: Justin
Date published: 2023-09-12

Can the motion sensor on the WS-301 be disabled, how? We occasionally need manual control only so the lights remain on until switched off.

Asked by: Larry
In the event of unit failure or if it is necessary to leave the load ON, remove the Service Jumper plug. This disables all automatic ON and OFF functions and the load can only be operated using the ON/OFF button. See the attached image to access the service jumper.
Answered by: Legrand Technical Support
Date published: 2022-09-08
  • y_2024, m_5, d_20, h_5CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_3
  • loc_en_US, sid_WS-301-W, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_legrand
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 36ms