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The Lutron MS-A102-V Maestro In-Wall Vacancy Sensing Switch is a single-pole, dual-technology sensor switch that combines passive infrared (PIR) and ultrasonic sensing technologies. Designed for vacancy-only operation, it requires manual activation and automatically turns lights off when the room is unoccupied. This switch is ideal for applications where automatic-on is not desired or permitted, such as in compliance with California Title 24 energy codes. It does not require a neutral wire, facilitating installation in retrofit scenarios.
Technical Specification
Model
Lutron MS-A102-V
Type
Vacancy Sensing Switch
Operation
Single-Pole
Voltage
120–277 V~
Load Capacity
6 A Lighting (Incandescent, Halogen, ELV, MLV, CFL, LED, Magnetic Fluorescent, Electronic Fluorescent); 4.4 A Fan (1/6 HP) at 120 V~
Sensor Technology
Dual-Tech (Passive Infrared + Ultrasonic)
Neutral Wire Required
No
Timeout Settings
Adjustable (1, 5, 15, or 30 minutes)
Sensitivity Adjustment
PIR: High, Medium, Low, Minimum; Ultrasonic: High, Medium, Low, Off
Field of View
180°
Coverage Area
Major Motion: 900 ft² (81 m²); Minor Motion: 400 ft² (36 m²)
Certifications
UL Listed, Title 20/24 Compliant
Additional Information
Adaptive Relay Switching: Minimizes false-offs and ensures lights stay on when the room is occupied.
Smart Ambient Light Detection: Prevents lights from turning on when sufficient natural light is present.
XCT Technology: Enhances detection of fine motions, such as typing or reading.
Tamper-Resistant PIR Lens: Provides durability and prevents vandalism.
Color Options: Available in various colors to match interior décor.
Installation: Suitable for retrofit applications without the need for a neutral wire.
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