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White cylindrical fixture-mount sensor with flat lens, hard-wired leads visible

Acuity Sensor Switch

Acuity Sensor Switch CMRB 50 Fixture Mount Sensor

SKU CH-BS0T-4HCVR

Fixture-mount occupancy sensor with passive infrared detection, 120/277/230 V AC operation, up to 1,400 sq ft coverage at 15 ft height and 0–10 V dimming control

  • Detects occupancy up to 1,400 sq ft coverage area
  • Photocell enables daylight harvesting for energy savings
  • 0-10V dimming control compatible with LED fixtures
  • Mounts directly on fixture at 15 ft maximum height
  • cUL listed and RoHS compliant for safety standards

Fixture Mount Sensor for High Bay Lighting

The CMRB 50 is a hard-wired occupancy sensor designed for fixture installation in high bay environments. It uses passive infrared technology to detect motion and includes a photocell for daylight harvesting. The unit operates on 120, 230 or 277V AC and carries cUL listing and RoHS compliance. It is suited for commercial and industrial lighting control.

Coverage Limited to 15 Foot Mounting Height

Maximum coverage reaches 1,400 square feet when mounted at 15 feet, so higher ceilings will reduce the detection zone. The sensor controls fluorescent, incandescent and LED loads up to 800W at 120V AC, which equals 6.67A. Loads exceeding this rating or installations above the stated height fall outside the specified performance range.

0 to 10V Dimming Interface Determines Compatibility

The sensor communicates via a 0 to 10V output, so it only works with drivers or ballasts that accept this analogue control signal. Fixtures lacking a 0 to 10V input cannot be dimmed by this device, and no other communication protocol is supported. Verify the driver specification before purchase.

Highlights

  • Detects occupancy up to 1,400 sq ft coverage area
  • Photocell enables daylight harvesting for energy savings
  • 0-10V dimming control compatible with LED fixtures
  • Mounts directly on fixture at 15 ft maximum height
  • cUL listed and RoHS compliant for safety standards

Specifications

BrandSENSORSWITCH

Questions about this item

Should I choose the 50 model or a different CMRB version?

The CMRB 50 is a single fixture-mount occupancy sensor with a 0 to 10V dimming interface and photocell. Other CMRB versions are not described in the available information.

What does the 1,400 sq ft coverage mean when the sensor is mounted at 15 ft?

At the maximum 15 ft mounting height the passive infrared sensor detects motion across up to 1,400 sq ft, suitable for high-bay fluorescent, incandescent or LED fixtures.

How does the 0 to 10V interface work with 120, 230 or 277V supplies?

The sensor is hard-wired and accepts 120, 230 or 277V AC; the 0 to 10V output dims compatible ballasts or drivers regardless of the line voltage used.

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