Black
Neutral
Black/White
Load
Hot
Green
Ground
(required)
Black
Neutral
Black/White
Load
Hot
Blue
Neutral
Blue/White
Load
Hot
Green
Ground
(required)
DIMENSIONS - inches (mm)
SPECIFICATIONS
Operation
CENTO 120/277Vac sensors draw control power directly from the lighting circuit they are intended to control.
When in operation the sensor will detect initial motion using Passive Infrared (PIR); once motion is detected, the
internal contact will close. Motion through PIR is used to maintain the occupied condition as long as occupants
remain within coverage range and line-of-sight of Sensor.
Wiring Diagrams
CENTO 120/277Vac sensors include #14 AWG wiring leads. Use appropriate sized wire nuts for connecting
wires.
CAUTION: Turn power off at the circuit breaker before working on sensor. According to NEC 240-83(d), if the
branch circuit breaker is used as the main switch for a fluorescent lighting circuit, the circuit breaker should be
marked SWD. All installations should be in compliance with National Electric Code (NEC) and all state, provin-
cial, federal, and local codes.
1-pole
No Neutral
2-pole
No Neutral
This pole can be used for
controlling a second fixture such
as bathroom fan when utilizing
Restroom Mode.
Power
• 120/277Vac
• 60 Hz
Contact Ratings
• 120Vac - 800W
• 277Vac - 1200W
Power Consumption
• 400 micro amps
Approvals
• Title 24, California
• Local Law 48, New York (Vacancy models)
Environment
• Indoors, stationary, non-vibrating, non-corrosive atmosphere
and non-condensing humidity
• Ambient Operating Temperature: 32°F to 104°F (0°C to 40°C)
• Storage Temperature: -14°F to 140°F (-25°C to 60°C)
}
Manual Override Button
DIP Switches
Time Delay Dial
Ranges from 30s to 30 min.
Full turn Clockwise for Auto Time
Full turn Counterclockwise for test mode
A
uto
Test
Test Mode
Lo
Hi
1
5
30
20
Light Level Dial
Photo sensor “P”
models only
Automatic Timeout Mode LED
Sensor
Test Mode LED
• Certified to UL 508, UL244A, CSA C22.2 #14
*SRUS*-*-*
120-277Vac, SWITCH-MOUNT, PIR SENSOR
OSRUS1-W
OSRUS2-P-W
OSRUS2-P-G
OSRUS2-P-I
VSRUS1-W
VSRUS2-P-W
VSRUS2-P-G
VSRUS2-P-I
• Commercial grade components for long term reliability
• Straightforward wiring for quick installation
• Factory configured for the most common applications
• DIP switches and dials for advanced functionality
• Photo sensor for natual daylight control (some models)
• Vacancy sensors permanently configured for Manual-ON/Auto-OFF
1-Pole,
white
2-Pole with photo sensor, white
2-Pole with photo sensor, gray
2-Pole with photo sensor, ivory
1-Pole vacancy (Manual-ON only), white
2-Pole vacancy (Manual-ON only) with photo sensor, white
2-Pole vacancy (Manual-ON only) with photo sensor, gray
2-Pole vacancy (Manual-ON only) with photo sensor, ivory
PART NO.
DESCRIPTION
FEATURES
*Faceplate not included
Installation Coverage
Installing in Offices
• PIR Requires Line of Sight
Installing in Restrooms
• Use 2-pole model to control two loads in
restroom (e.g. light and fan)
Typical Office
Typical Restroom
Standard Lens
• Optimal usage is to detect small motions such as hand movements
• Designed for a mounting height of 4ft
Top View
Side View
15 ft
7.5 ft
0 ft
7.5 ft
15 ft
180º
15º
15º
4 ft
0 ft
8 ft
0 ft
Sensor Location Guidelines
To optimize the performance of CENTO Sensors, please review the coverage pattern, range, and model
to match with the application. Room dynamics will change when people and furniture are occupying the
space. In some rooms, after move in, some sensors may require adjustments.
• Ensure that the sensor is at least 30 inches away from air handlers/registers and not pointed directly at
windows
15 ft
2.56 (65)
3.25 (83) 3.81 (97)
1.25 (32)
4 (101)
1.62 (41)
2.65 (68)
1.18 (30)
1.69 (43)
Performance Specification & Installation Guide
CENTO Occupancy Sensors - Wall Switch, Passive Infrared (PIR), 120/277Vac
51 Century Blvd., Suite 230 • Nashville, TN 37214 • 615-316-5100 • (TES) 1-800-BALLAST • www.unvlt.com
Page 1 of 2
Both poles should be powered by the same circuit.
Individually cap unused leads for at least 600Vac.
