Dual Relay Multi-Tech Wall Box Occupancy Sensor Lighting Control

The Leviton OSSMD Dual Relay Decora® Wall Switch is a multi-technology occupancy sensor designed for commercial lighting control applications. It provides automatic lighting control for two separate lighting loads from a single device, suitable for incandescent, fluorescent, and low-voltage lighting as well as fan loads. This sensor integrates passive infrared (PIR) and ultrasonic (U/S) technologies to optimize occupancy detection and energy savings, making it an effective solution for electrical distributors and lighting solutions providers seeking advanced control devices. It is suitable for installation in a standard single-gang wall box and complies with California Title 20/24 energy efficiency standards.

Specifications

• Manufacturer: Leviton
• Model Number: OSSMD-MDW
• Device Type: Occupancy Sensor
• Voltage: 120-230-277 VAC
• Frequency: 50/60 Hz
• Power Consumption: 210mW (120V MD), 410mW (277V MD)
• Coverage Area: 2400 square feet
• Field-of-View: 180°
• Operating Temperature: 0°C to 40°C (32°F to 104°F)
• Load Rating Primary Relay: Fluorescent 1200VA @ 120V, 2700VA @ 277V; Incandescent 800W @ 120V
• Load Rating Secondary Relay: Fluorescent 800VA @ 120V, 1200VA @ 277V; Incandescent 800W @ 120V; Motor 1/4 HP
• LED Indicator Color: Green (Ultrasonic detection)
• Certifications: ETL/C-ETL Listed, CSA, FCC, Meets CA Title 20/24
• Weight: 3.8 lbs
• Color: White
• Grade: Commercial
• Wire Designation: Primary Relay - Line (Black), Load (Blue), Ground (Green), Neutral (White, if provided); Secondary Relay - Isolated contact leads (2 Red)
• Warranty: Limited Five-Year Warranty

Features

• Dual relay design controls two separate lighting loads with independent manual override switches
• Multi-technology sensing combining PIR and ultrasonic for improved occupancy detection and false-off immunity
• Manual-ON/auto-OFF mode on secondary relay for compliance with California Title 20/24 energy codes
• Self-adaptive technology automatically adjusts time delay and sensitivity to occupant patterns
• Light sensor measures ambient light to prevent unnecessary lighting when sufficient daylight is present
• Patented adjustable blinders allow horizontal field-of-view adjustment from 180° to 60° without masking tape
• Vandal-resistant PIR lens and low-profile Decora® design for commercial aesthetics
• True zero-cross relay switching for maximum contactor life and compatibility with electronic ballasts
• Compatible with electronic and magnetic ballasts, incandescent, fluorescent, and low-voltage lighting
• Presentation Mode feature allows lights to be turned off and remain off during presentations while the room is occupied
• Vacancy confirmation feature provides a 30-second window to turn relays back on after timeout
• False detection circuitry and ability to disable PIR or ultrasonic sensing for added flexibility
• Fits in a standard single-gang wall box, replacing two single-pole wall switches for fast installation