Miller Edge Non-Monitored Relay Light Curtain

The Miller Edge Non-Monitored Relay Light Curtain (RLC Series) provides a reliable and cost-effective safety solution for commercial overhead doors, particularly in pre-2010 installations or as a secondary sensing device in modern systems. These light curtains create a dense, invisible barrier of infrared light across the path of a door. When the beam is interrupted by a person, vehicle, or object, the sensor signals the door to stop and/or reverse, preventing accidents and equipment damage.

Available in 36-inch and 72-inch models, the RLC Series offers wider area detection than traditional photo eyes and is ideal for motorized and high-speed doors where increased coverage is essential. With a maximum detection range of 32 feet, rugged waterproof construction, and simplified wiring, installation is fast and effective in demanding environments.

Key Features

• Non-monitored fail-safe design – ideal for legacy systems and secondary protection

• Multi-beam detection – up to 16 infrared sensors create a blanket of protection

• Stops and reverses doors when obstructions are sensed

• Max detection range: Up to 32 feet

• Mounts directly to garage door tracks or guides

• Includes universal mounting brackets

• PVC-over-aluminum housing for durability

• IP67 rating – weatherproof for indoor/outdoor use

• Slim, low-profile housing that stays out of the way

• Operating temperature: -40°F to +140°F

• Easy-to-wire relay output with both N.O. and N.C. contacts

Model Options

• RLC-K36 – 36" model with 8 sensing elements

• RLC-K72 – 72" model with 16 sensing elements

Technical Specifications

Optical:

• Operating Range: 8 to 32 feet

• Number of Elements: 8 (RLC-K36) or 16 (RLC-K72)

• Aperture Angle: Emitter ±8°, Receiver ±15°

• Max Ambient Light: >100,000 lux

Electrical:

• Power Source: 12–24V AC/DC

• Current Draw: <150mA at 24V DC

• Relay Output: 1A switching at 24V DC

• Output Configuration: Normally Open (N.O.) and Normally Closed (N.C.)

Physical:

• Protection Height: 36" or 72" depending on model

• Dimensions: 1" W x 38" H x 1.1" D

• Housing: PVC over aluminum

• Mounting: 4 universal mounting brackets included

• Ingress Protection: IP67 rated

• Operating Temperature: -40°F to +140°F

Applications

• Commercial overhead sectional doors

• High-speed rolling doors

• Vehicle entrances in warehouses or industrial buildings

• Secondary protection for monitored operators

The Miller Edge Non-Monitored Light Curtain offers dependable safety performance with modern simplicity—ideal for retrofits and systems that don’t require a monitored solution. Easy installation and wide detection coverage make it a top choice for safe and efficient door automation.