Eaton OS310U-W Occupancy Sensor Switch - NOM cULus Listed
Part Number: OS310U-W
Quick Summary
The Eaton OS310U-W occupancy sensor switch is a 120 V motion-activated lighting control ideal for commercial and residential spaces. It addresses wasted energy by automatically switching lighting based on occupancy, reducing operating costs without sacrificing convenience. With NOM and cULus Listed certifications, it meets safety and regulatory requirements for North American and select international environments. This flush-mounted, white device with a built-in nightlight delivers reliable performance across 1000 sq ft of space, and its wire-lead installation supports quick retrofits while maintaining compliance with standard wiring practices. The solution supports 1-pole and 3-way configurations, and its compatibility with LED, CFL, incandescent, and other load types makes it a versatile choice for modern building automation.
Product Information
Extended Description
OS310U-W Eaton: Eaton occupancy sensor switch, Motion sensor with nightlight, Flush, 120V, Wire leads, Maintained closure, White, Incand, MLV, ELV, Flrsnt, CFL, LED, halo, 1-pole, 3-way, 1-phase, 1000 sq ft, Occupancy, 1000W 710872
Product Name
Eaton occupancy sensor switch
Catalog Number
OS310U-W
UPC
032664710872
Product Length/Depth
3.31 in
Product Height
5.44 in
Product Width
2.88 in
Product Weight
0.001 lb
Certifications
NOM cULus Listed
Special features
Motion sensor with nightlight
Type
Occupancy sensor switch
Voltage rating
120 V
Number Of Poles
Single-pole
Phase
Single-phase
Power consumption
1000 W
Wiring method
Wire leads
Sensor type
Occupancy
Mounting method
Flush
Closure type
Maintained
Load type
ELV CFL LED MLV INC FLR HAL
Number of ways
Three-way
Range
1000 sq ft
Color
White
Feature: 120 V single-phase operation with wire leads → Business Impact: simplifies installation and reduces wiring complexity, accelerating project timelines and lowering labor costs. Application: suitable for quick retrofits in offices and break rooms. Feature: Motion sensor with nightlight → Business Impact: enhances safety and convenience during night-time ingress while maintaining efficient energy use. Application: hallway and stairwell applications where low-level illumination is beneficial. Feature: Load type compatibility across ELV, CFL, LED, MLV, INC, FLR, HAL → Business Impact: broad fixture compatibility minimizes part diversity and stockouts, improving procurement predictability. Application: mixed-technology lighting environments in commercial spaces. Feature: Flush mounting and wiring method 'Wire leads' → Business Impact: clean aesthetics and straightforward installation in standard wall boxes, reducing field adjustments. Application: refurbishment projects and new builds with tight wall cavities. Feature: Range up to 1000 sq ft and 1-pole / 3-way operation → Business Impact: scalable coverage for open offices and meeting rooms, enabling flexible wiring schemes. Application: multi-point control in conference centers and commercial corridors. Feature: Maintained closure for stable contact under load → Business Impact: reliable long-term operation with reduced flicker and electrical chatter. Application: critical environments where continuous power to sensors or fixtures is required. These attributes collectively support energy management programs, regulatory compliance, and reduced total cost of ownership across a broad range of commercial and residential installations.
Get a Quick Quote for a Eaton OS310U-W
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton OS310U-W?
Enquire Now
FAQs
Begin by confirming 120 V supply and turning off power at the breaker. Wire leads connect to line and load terminals for single-pole operation, with the option to configure a 3-way setup using the compatible traveller wiring. Mount the device flush in a standard wall box, secure the faceplate, and test the nightlight function and occupancy sensing. The unit supports straightforward retrofits in most commercial enclosures, reducing field wiring time and ensuring a reliable, code-compliant installation.
The OS310U-W supports a broad range of loads including incandescent, LED, CFL, MLV, ELV, and HAL-type fixtures. Its 1000 W load rating accommodates typical office and small commercial lighting loads, while its compatibility with various ballast and lamp types helps prevent mismatches that could cause flicker or premature failure. This versatility minimizes rework and replacements during upgrades or renovations.
Yes. The OS310U-W is designed for both single-pole and 3-way configurations, enabling flexible control from multiple fixtures or switch locations. When wired for 3-way operation, ensure the traveler connections are followed per the Eaton specification sheet to maintain reliable occupancy sensing and consistent nightlight behavior. This makes it a robust option for larger offices or hallways requiring multi-point control.
The OS310U-W carries NOM and cULus Listed certifications, signaling compliance with safety and performance standards in Mexico and North America, respectively. These certifications support electrical system safety, reduce regulatory risk during procurement, and simplify warranty and service planning for building owners and contractors engaging cross-border projects.
Deploying the OS310U-W yields measurable energy savings through occupancy-based lighting control, potentially reducing electric bills in areas with intermittent usage such as corridors and meeting spaces. Its nightlight feature improves safety without full-time illumination, and the broad load compatibility lowers equipment churn. Combined with easy retrofits and regulatory-friendly certifications, this sensor switch offers a favorable total cost of ownership for facilities managers.