Description
Commercial-Grade Dual Technology Occupancy Sensors
The Enerlites MDC-50V and MDC-50L deliver reliable occupancy detection for commercial environments using combined PIR and ultrasonic technologies. Ambient light level detection prevents unnecessary activation when sufficient daylight is present, ensuring energy-efficient operation in offices, classrooms, warehouses, and common areas.
Model Comparison
MDC-50V – Line Voltage Sensor
Commercial-grade ceiling mount sensor operating on 120VAC / 277VAC line voltage. Compatible with LED and fluorescent lighting systems. Direct control of lighting loads including resistive, tungsten, electronic ballast, and motor loads.
MDC-50L – Low Voltage Sensor
Commercial-grade ceiling mount sensor operating on 24V DC systems. Requires power pack supply (MPP-24, sold separately). Compatible with LED and fluorescent lighting. Supports optional vacancy mode and manual ON/OFF operation via ENERLITES 91245 momentary switch (sold separately).
Key Features
- Dual Technology Detection: PIR + Ultrasonic for superior accuracy and reduced false triggers
- 360° Coverage: Up to 1200 sq. ft. PIR detection, 1000 sq. ft. ultrasonic
- Photocell Integration: Prevents lights from turning ON when ambient light levels are sufficient
- Adjustable Time Delay: 30 seconds to 30 minutes via DIP switch configuration
- LED & Fluorescent Compatible: Works with modern LED and traditional fluorescent systems
- Code Compliant: UL/cUL listed, meets Title 24 and ASHRAE 90.1-2007 requirements
Technical Specifications
MDC-50V (Line Voltage):
- Voltage: 120VAC / 277 VAC, 50/60 Hz
- Resistive: 6.6A
- Tungsten: 800W
- Electronic Ballast: 800VA @ 120VAC / 1600VA @ 277VAC
- Motor: 1/4 HP
- PIR Coverage: 1200 sq. ft.
- Ultrasonic Coverage: 1000 sq. ft.
- Time Delay: Adjustable 30 sec to 30 min
- Mounting Height: 8-12 ft.
- Photocell Range: 2-2000 lux
- Warranty: 2 years
MDC-50L (Low Voltage):
- Voltage: 24V DC (requires MPP-24 power pack)
- PIR Coverage: 1200 sq. ft.
- Ultrasonic Coverage: 1000 sq. ft.
- Time Delay: Adjustable 30 sec to 30 min
- Mounting Height: 8-12 ft.
- Photocell Range: 2-2000 lux
- Optional Control: Compatible with ENERLITES 91245 momentary switch for vacancy mode and manual override
- Warranty: 2 years
Applications
Ideal for open office spaces, classrooms, conference rooms, warehouses, common areas, and commercial facilities requiring reliable occupancy detection with energy-efficient daylight harvesting. Dual-tech logic ensures lights activate only when true occupancy is detected, while photocell integration prevents operation during sufficient ambient light conditions.
Installation Notes
MDC-50V: Standard ceiling-mount installation with direct line voltage connection. Supports parallel wiring for multi-sensor control of shared loads. Compatible with resistive, tungsten, electronic ballast, and motor loads.
MDC-50L: Requires MPP-24 power pack supply (sold separately) for 24V operation. Compatible with ENERLITES 91245 momentary switch (sold separately) for vacancy mode and manual ON/OFF control.






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