Occupancy & Vacancy Sensors & Timers Technology
Passive Infrared Sensors (PIR)
Using a patented fresnel lens that minimizes optical aberrations, each Legrand/Pass & Seymour PIR sensor divides its coverage area into zones. When an infrared energy change is detected within a zone, one element of the dual-element pyroelectric sensing device generates a positive pulse. Within milliseconds, the other element produces a negative pulse, turning the lights on. Vacancy sensors turn lights off when the room is vacant for a period or when no infrared energy is detected.
Passive infrared sensors are less effective at detecting occupancy around barriers and are more effective when sensing movement across their field of sight rather than towards or away from it.
Features:
- Patented fresnel lenses with multi-segment design
- Dual-element pyroelectric sensors
- Low-profile design
- Daylight filter systems
- Adjustable settings for time and sensitivity
- Custom Detection Signature Analysis for high immunity to RFI and EMI, and reliability
- Self-adaptive technology is available on some models
Ultrasonic Sensors
Ultrasonic sensors utilize a multi-directional transmitter/receiver system to broadcast ultrasonic sound waves generated by a quartz crystal oscillator. They measure the time it takes for these waves to return. Movement within the area causes the sound waves to return at a different rate, thus detecting occupancy.
Ultrasonic sensors broadcast in three dimensions, enabling detection of smaller movements than PIR sensors. Proper placement is crucial, as sound waves can escape through open doorways, leading to false triggering. While Legrand/Pass & Seymour ultrasonic sensors include circuitry to filter out air-flow movement from HVAC equipment or fans, sensors should be kept away from breezy areas. Heavy carpeting and other sound-absorbing materials can also reduce coverage.
Features:
- Temperature- and humidity-resistant tuned receivers
- Signal Processing Circuitry
- Solid-state, crystal-controlled transmitter
- Adjustable controls for time and sensitivity
Dual Technology
Dual Technology sensors combine PIR and Ultrasonic sensing in one device to minimize false ONs and nuisance OFFs. Adjustable sensitivity and user-selectable operational characteristics make these sensors versatile for demanding applications, including odd-shaped rooms, areas with partitions, and changing floor plans.
Applications Overview
| P&S Model | Catalog Page # | Best Suited For: |
|---|---|---|
| RW500U | L-5 | Storage rooms, walk-in closets, pantries, garage where no neutral is available |
| RWU600U | L-5 | Storage rooms, walk-in closets, pantries, garage where a neutral is available |
| RW500B | L-4 | Bedrooms, basements bathrooms, laundry rooms, where no neutral is available |
| RWU600B | L-4 | Bedrooms, basements bathrooms, laundry rooms, where a neutral is available |
| RW600BTC | L-4 | Bedrooms, basements bathrooms, laundry rooms, where no neutral is available |
| RW3U600 | L-6 | Any room/hall with multiple entrances -- allows manual ON/OFF control from both locations. Can be switched between occupancy and vacancy. |
| RW3U603 | L-6 | T24 Compliant. Any room/hall with multiple entrances -- allows manual ON/OFF control from both locations. Can be switched between occupancy and vacancy. |
| RWDU500 | L-7 | Any room where adjustable light level is desired |
| PTWSP250 | L-8 | Small offices, closets, utility rooms with no partitions or obstructions |
| WSP250 | L-8 | Small offices, closets, utility rooms with no partitions or obstructions |
| OS300S | L-10 | Small offices, closets, small conference rooms with no partitions or obstructions |
| OSR300S | L-11 | Small rooms with two individually-controlled loads or bi-level lighting with no partitions or obstructions |
| WDT100 | L-9 | Small offices, executive suites, conference rooms, break rooms. |
| WDT200 | L-9 | |
| CS500 | L-13 | Open offices, lunch, utility, storage, and computer rooms with no partitions or obstructions |
| CS1200 | L-13 | Larger rooms, up to 1200 sq. ft., with open floor plans, no partitions or obstructions |
| HS1001 | L-12 | Hallways, or aisles |
| WA1001 | L-12 | Entrances, vestibules, classrooms, for wide-angle applications |
| CSU600 | L-14 | Offices, computer, meeting, copy, and restrooms |
| CSU1100 | L-14 | Offices, lunch, break and classrooms, restrooms, and conference rooms |
| CSU2200 | L-14 | Offices, lunch, break and classrooms, restrooms, conference rooms, halls, storage areas |
| CSD1000 | L-15 | Meeting, conference and classrooms, restrooms, dressing rooms, libraries, interview rooms, testing areas, lunch and break rooms |
| RT1 | L-18 | Closets, bathroom fans, exhaust fans, heat lamps, bedrooms |
| RT12 | L-19 | Garages, basements, laundry rooms, fans, motors, landscape lights |
| RT24 | L-19 | Exterior lights, landscape lighting, security lighting, holiday lighting |
| 97015, 30, 60 | L-20 | Bathroom fans, heat lamps, guest rooms |
| 97115, 30, 60 | L-20 | Bathroom fans, heat lamps, guest rooms where a hold function is desired |
| 97352 | L-20 | Dual control for bathroom light and fan |
Residential Occupancy Sensors - Passive Infrared (PIR)
Features:
- Replaces a standard light or fan single pole switch.
- Lighted switch for visibility in darkened rooms.
- Automatic-ON operation.
- Fixed five-minute time delay.
- Low-profile styling with uniform color-matched lens and device.
- Coverage: 180°, max. 600 ft.² (56m²)
- cULus listed.
- 5-year warranty.
- Works with most common residential lighting types (RWU600U only).
- Load: Incandescent, fluorescent, compact fluorescent (CFL), magnetic low-voltage (MLV) and electronic low-voltage (ELV), 1/6 hp.
Single Pole Occupancy Sensors
| Catalog Number | Description | Voltage | Load | Selectable Auto ON | Manual ON | Auto/Man ON | Color |
|---|---|---|---|---|---|---|---|
| RW500UICC4 | No neutral required, ideal for storage and utility rooms | 120VAC 60 Hz | 25-500W Incandescent | Yes | No | No | Ivory |
| RW500UWCC4 | 120VAC 60 Hz | 25-500W Incandescent | Yes | No | No | White | |
| RW500UBKCC4 | 120VAC 60 Hz | 25-500W Incandescent | Yes | No | No | Black | |
| RW500ULACC4 | 120VAC 60 Hz | 25-500W Incandescent | Yes | No | No | Lt. Almond | |
| RWU600UICC4 | Neutral required, controls most types of lighting, ideal for storage & utility rooms | 120VAC 60 Hz | 0-600W All | Yes | No | No | Ivory |
| RWU600UWCC4 | 120VAC 60 Hz | 0-600W All | Yes | No | No | White | |
| RWU600UBKCC4 | 120VAC 60 Hz | 0-600W All | Yes | No | No | Black | |
| RWU600ULACC4 | 120VAC 60 Hz | 0-600W All | Yes | No | No | Lt. Almond |
Diagram Descriptions:
Coverage Diagram
Illustrates the sensor's coverage pattern, showing a 180-degree field of view with a maximum range of 25 feet (7.6m) at the widest point, and a range of 4 feet (1.2m) at the closest point. The coverage area is approximately 600 square feet (56m²).
Wiring Diagrams
RW500U Wiring: Depicts a three-wire connection: Black wire for HOT (power from circuit box), Red wire for LOAD (power to lamp or fan), and Green wire for GROUND. This model does not require a neutral wire.
RWU600U Wiring: Depicts a four-wire connection: Black wire for HOT (power from circuit box), Red wire for LOAD (power to lamp or fan), White wire for NEUTRAL, and Green wire for GROUND. This model requires a neutral wire.
All devices listed on this page conform to NEMA WD-1 and WD-6 standards.
