Pass & Seymour DSW-301/302 Dua...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$186.60
Pass & Seymour DSW-301/302 Dual Technology Occupancy Sensor, 120/277V

Pass & Seymour DSW-301/302 Dual Technology Occupancy Sensor, 120/277V

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Model: DSW-301-I

In Stock (leaves warehouse same day if ordered before 3pm ET)

$186.60
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Pass & Seymour DSW-301/302 Dual Technology Occupancy Sensor, 120/277V

The Pass & Seymour Wattstopper® DSW-301/302 is a dual technology wall switch occupancy sensor that automatically turns lights OFF and ON based on room occupancy. It combines passive infrared (PIR) and ultrasonic detection technologies for reliable coverage, replaces existing wall switches, and fits behind a standard decorator wallplate. Rated 120/277V and finished in Ivory with a matte finish, this multi-way sensor is built for dependable, code-compliant lighting control in commercial and institutional spaces.

Key Features

  • Dual Technology Detection: combines passive infrared (PIR) and ultrasonic sensing for accurate, reliable occupancy coverage, ideal for presentations.
  • Vandal-Resistant Lens: durable lens design combines precise detection coverage with long-term durability.
  • Zero-Crossing Switching: switches at the zero-crossing point of the AC waveform for extended relay life.
  • Four Occupancy Logic Options: customizable control logic lets installers tailor sensor behavior to the specific application.
  • Selectable Walk-Through Mode: automatically turns lights off three minutes after initial occupancy if no additional motion is detected within the first 30 seconds.
  • Automatic Mode: sensor returns automatically to Auto-ON after lights are switched off manually.
  • Selectable Audible Alert: provides an audible warning of impending shutoff before lights turn off.
  • Test Mode: allows quick, easy adjustments during setup and commissioning.
  • Voltage Rating: 120/277V for broad compatibility with commercial lighting circuits.

Technical Specifications

  • Finish: Matte
  • Color: Ivory
  • Country of Origin: China
  • Packaging: 80 EA
  • Voltage Rating: 120/277V

Typical Applications

  • Commercial Office Wall Switch Lighting Control
  • Classrooms and Presentation Rooms
  • Conference Rooms and Meeting Spaces
  • Multi-Way Switching Applications
  • Renovation and Retrofit Projects

Why Pass & Seymour?

Pass & Seymour Wattstopper® occupancy sensors pair dual-technology detection with a vandal-resistant lens, zero-crossing relay switching, and multiple selectable logic modes for dependable, energy-efficient lighting control. Backed by a matte Ivory finish designed to fit standard decorator wallplates, the DSW-301/302 series delivers consistent, professional-grade performance for wall switch replacement projects.

Manufacturer Resources

Spec Sheet

Product Specs

list_batch:
PASS-20260820
Product Type:
Occupancy Sensor
Voltage Rating:
120/277V
Product Finish:
Matte
Country of Origin:
China
Product Color:
Ivory
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Lighting Controls & Sensors
Product Depth:
1.83 in
Product Length:
2.73 in
Product Height:
2.73 in
Product Width:
1.76 in

Pass & Seymour DSW-301-I – Frequently Asked Questions

1) Can the Pass & Seymour DSW-301 occupancy sensor run on both 120V and 277V lighting circuits?
Yes. The DSW-301 is rated 120/277V, so the same device works on 120V branch circuits in offices and on 277V circuits common in commercial lighting panels. That means one part number covers both voltages instead of stocking two.
2) Will a DSW-301 wall switch sensor drop into my existing single-gang switch box?
It is built as a direct wall switch replacement. The DSW-301 replaces an existing wall switch in the box and fits behind a standard decorator (Decora style) wallplate opening, which makes it a retrofit device rather than a ceiling sensor needing new wiring runs.
3) Why pick a dual technology PIR plus ultrasonic sensor instead of a PIR-only occupancy sensor?
PIR alone needs line-of-sight motion and can drop occupants who sit still, which is why lights go out during presentations. The DSW-301 combines passive infrared with ultrasonic detection so minor motion still holds the lights on, and the description calls out presentation use specifically. If the room is a corridor, storage closet or private office where people move visibly, a PIR-only wall unit such as the Leviton ODS10-ID (also 120/277V) does the job with less commissioning fuss.
4) What is the closest equivalent to the Pass & Seymour DSW-301 occupancy sensor at the same voltage?
The Leviton ODS10-ID is a commercial grade occupancy sensor rated 120/277V AC, matching the DSW-301's 120/277V rating. The difference is detection technology: the DSW-301 combines passive infrared with ultrasonic sensing, while the Leviton ODS10-ID is a PIR-only sensor. If the room is a conference or presentation space where occupants sit still, the dual technology of the DSW-301 keeps lights on with less motion; for a private office or corridor, the PIR-only Leviton covers the same circuit voltage.
5) My control circuit is low voltage, not 120 or 277 volts - can I use the DSW-301?
No. The Pass & Seymour DSW-301 is rated 120/277V and replaces an existing line voltage wall switch. For a low voltage control circuit, the Lithonia Lighting CM-9 is a PIR low voltage occupancy sensor switch rated 12-24V AC/DC in white. If the low voltage sensor has to switch a line voltage load, the Lithonia CMR-9 is a PIR occupancy sensor with a relay included.
6) Can the DSW-301 be used where two or three switches control the same lights?
Yes, it is a multi-way sensor, so it can be applied in multi-way switching layouts such as a room with switches at two entrances. Confirm the circuit arrangement at the box before you pull the old switch.
7) What happens if someone just walks through a room with this sensor, like a classroom or copy room?
Selectable Walk-Through mode handles that. If no additional motion is detected within the first 30 seconds of initial occupancy, the lights go off three minutes later instead of running the full time delay. It cuts wasted burn time in spaces people pass through.
8) Can occupants turn the lights off manually without defeating the DSW-301 sensor?
They can. In Automatic mode the sensor returns to Auto-ON on its own after the lights are switched off by hand, so the next person entering gets light without someone having to reset anything. There is also a selectable audible alert that warns before shutoff, useful in conference and meeting rooms where people sit still.
9) Is this sensor suitable for a school hallway or other area where the device may get abused?
The lens on the DSW-301 is a vandal-resistant design, which is the reason it shows up in classroom and institutional specs. It is a line-voltage wall switch device, so for abuse-prone areas you can also keep the controls out of reach with a low-voltage ceiling sensor such as the Lithonia CM-9, which runs at 12-24V AC/DC and needs a power pack or relay to switch the load.
10) What are my options if I need a sensor that adapts its own sensitivity instead of being set by hand?
The DSW-301 is set up by the installer through its four logic options and Test Mode. If you would rather the device tune itself, the Leviton ODS15-IDW is a PIR self-adaptive commercial grade sensor. It is PIR only, so it will not hold lights on for seated, motionless occupants the way the dual technology DSW-301 does.
11) I need a simpler PIR-only wall sensor instead of the dual technology DSW-301 - what are my options?
Three PIR commercial grade sensors cover that: the Leviton ODS10-ID at 120/277V AC, the Leviton ODS15-IDW, which is a self-adaptive PIR commercial grade sensor, and the Leviton ODC0S-I1W, a line voltage PIR commercial grade sensor. All three rely on infrared motion alone, so they need line-of-sight motion to hold the lights on. The Pass & Seymour DSW-301 adds ultrasonic sensing alongside PIR plus a selectable walk-through mode and audible alert before shutoff, which is why it is specified for classrooms and presentation rooms.
12) I need to cover a large open area - is the DSW-301 or a Leviton sensor the right choice?
For a published square footage figure, the Leviton ODS10-ID-E is a PIR commercial grade sensor rated 2100 sq. ft. at 120/277V in black. The Pass & Seymour DSW-301 is a wall switch sensor that mounts in the existing switch box behind a standard decorator wallplate, so its coverage is from the wall into the room rather than a ceiling pattern over an open floor. For a large open space, compare the Leviton 2100 sq. ft. coverage against the opening you are controlling; for a single room controlled from its switch leg, the DSW-301 is the direct switch replacement. Note the ODS10-ID-E is black, where the DSW-301 is ivory with a matte finish.
13) Is the Lithonia CMR-9 a drop-in replacement for a Pass & Seymour DSW-301 wall switch sensor?
No - they are not interchangeable despite both being occupancy sensors. The Lithonia CMR-9 is a PIR sensor supplied with a relay, a two-piece arrangement where the sensor head and the switching relay are separate. The Pass & Seymour DSW-301 is a self-contained wall switch sensor rated 120/277V that goes directly into the switch box in place of the existing switch and takes a standard decorator wallplate. Swapping one for the other changes the wiring and the device location, not just the part.
14) How much adjustment does an installer get when commissioning the DSW-301?
Four occupancy logic options let the installer match sensor behavior to the room, and a Test Mode speeds up walk-testing and sensitivity adjustment during commissioning. Walk-Through and the audible alert are both selectable as well.
15) What color and finish is the DSW-301, and will it match my existing device plates?
Ivory with a matte finish, sized for a standard decorator wallplate. If your building is standardized on white or black devices, this one will not blend; the DSW-301-I is the ivory unit.
16) Does the relay in this sensor hold up to constant switching in a high-traffic room?
It uses zero-crossing switching, meaning the relay makes and breaks at the zero point of the AC waveform. That reduces arcing across the contacts and extends relay life, which matters in restrooms, classrooms and conference rooms that cycle many times a day.
17) We standardize on ivory devices across our facility - do the Leviton alternatives match?
The Pass & Seymour DSW-301 is ivory with a matte finish and fits a standard decorator wallplate, so it blends with ivory decorator trim already on the wall. Among the alternatives, the Leviton ODS10-ID-E is specified in black, so it will break an ivory device run. If finish uniformity is the deciding factor on a retrofit, the ivory DSW-301 is the one that keeps the wall consistent.
How fast can I get the Pass & Seymour DSW-301-I delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Pass & Seymour DSW-301-I come with a warranty?
Absolutely. The Pass & Seymour DSW-301-I is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Pass & Seymour DSW-301-I?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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