Eaton OS310U-GY Occupancy Sensor Switch - cULus Listed
Part Number: OS310U-GY
Quick Summary
The Eaton occupancy sensor switch OS310U-GY provides automatic lighting control for commercial spaces. Too often spaces waste energy when rooms are unused or workers forget to switch off lights, driving up utility costs and reducing productivity. This model carries NOM and cULus Listed certifications, underscoring compliance with regional electrical codes and safety standards. With fast retrofit potential, wired leads, and a flush mounting footprint, it supports 120 V operation and delivers hands-free control that improves energy efficiency while reducing maintenance for facilities and operations teams.
Product Information
Extended Description
OS310U-GY Eaton: Eaton occupancy sensor switch, Motion sensor with nightlight, Flush, 120V, Wire leads, Maintained closure, Gray, Incand, MLV, ELV, Flrsnt, CFL, LED, halo, 1-pole, 3-way, 1-phase, 1000 sq ft, Occupancy, 1000W 710841
Product Name
Eaton occupancy sensor switch
Catalog Number
OS310U-GY
UPC
032664710841
Product Length/Depth
3.31 in
Product Height
5.44 in
Product Width
2.88 in
Product Weight
51.796 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 LED CFL HAL INC MLV FLR
Number of ways
Three-way
Range
1000 sq ft
Color
Gray
Feature: Motion sensor with nightlight detects occupancy and provides a gentle nightlight for safe navigation. Business Impact: Reduces energy usage while improving safety and usability during late hours or in dim environments. Application: Office corridors, stairwells, and entryways where low-level illumination is beneficial without manual switching. Feature: 120 V, 1000 W load rating and 1-pole/3-way compatibility. Business Impact: Handles common lighting loads with flexible control schemes, enabling centralized or multi-location operation. Application: Open-plan offices and conference areas where lighting needs to respond to occupancy across zones. Feature: Wiring leads and flush mounting. Business Impact: Simplifies installation and minimizes wall disruption, reducing labor time and retrofit costs. Application: Retrofit projects in existing enclosures or retrofit installations in commercial interiors. Feature: Broad load-type compatibility ELV/LED/CFL/HAL/INC/MLV/FLR. Business Impact: Reduces part variety and inventory waste while ensuring reliable performance across lamp technologies. Application: Mixed-technology lighting systems in education, healthcare, and retail. Feature: Maintained closure and 1000 sq ft range. Business Impact: Ensures lights stay on when needed and turn off automatically when spaces empty, improving control accuracy. Application: Classrooms, conference rooms, and storage areas where precise load management matters.
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FAQs
OS310U-GY supports both 1-pole and 3-way configurations with wired leads for flexible connections. Follow the Eaton specification sheet for exact traveler wiring and terminal assignments to ensure correct multi-location operation and maintained load control across locations.
The sensor is designed for ELV, LED, CFL, HAL, INC, MLV, and FLR lighting loads. This broad compatibility simplifies retrofits and mixed-technology installations without the need for separate control devices.
Yes. With a 1000 sq ft sensing range and flush-mounted installation, it is well-suited for halls, corridors, offices, classrooms, and conference spaces where automatic lighting control improves flow and safety while reducing energy use.
The OS310U-GY is NOM and cULus Listed, indicating compliance with regional electrical codes and safety standards. This helps ensure safe operation, code compliance for installations, and smoother inspections in commercial settings.
By automatically turning lights on and off with occupancy, you reduce wasted energy, lower utility costs, and extend lamp life. The nightlight feature also enhances safety in low-light scenarios, contributing to improved occupant comfort and reduced manual task load for building staff.