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White ceiling-mounted ultrasonic occupancy sensor, 4.5 inch diameter, LED indicator

Hubbell Incorporated

Hubbell Incorporated ATU2000CRP Ceiling Occupancy Sensor

SKU CH-HKK0-42QCF

Ceiling-mounted ultrasonic occupancy sensor with isolated relay, 2,000 sq ft coverage at 12 ft height, 24V DC operation, and adaptive time delay up to 40 minutes

  • TypeIndustrial Electrical Controls & Automation
  • Ultrasonic sensing covers up to 2000 sq ft for reliable occupancy detection
  • Operates on 24V DC for safe low-voltage installation in commercial spaces
  • Mounts on ceilings up to 12 ft high with 4.5 in diameter for discreet placement
  • cULus listed and UL244A compliant meeting ASHRAE 90.1 energy standards
  • Adaptive time delay adjusts up to 40 min reducing unnecessary lighting runtime

Ceiling Ultrasonic Sensor

The Hubbell ATU2000CRP is a ceiling-mounted occupancy sensor that uses ultrasonic technology to detect movement across large indoor spaces. It operates on a 24V DC supply and communicates through a hard-wired connection to a separate control unit. The unit includes an isolated relay for switching loads and a built-in photocell for daylight harvesting. It is designed for commercial and industrial lighting control applications.

White 4.5in Housing Mount

The sensor features a white finish with an overall diameter of 4.5 in, allowing it to blend into standard ceiling tiles. It is rated for installation at heights up to 12 ft and provides a maximum coverage area of 2,000 sq ft. The hard-wired communication method requires permanent conduit or cable runs back to the control panel. An adaptive time-delay function automatically adjusts the timeout period up to a maximum of 40 min based on observed occupancy patterns.

ASHRAE 90.1 cULus Listed

The device complies with ASHRAE 90.1 energy standards and carries cULus listing under UL244A for occupancy sensors. Load switching capacity at 120V AC is dependent on the rating of the connected control unit rather than the sensor itself. The 24V DC operating voltage limits direct connection to line-voltage circuits without an appropriate power pack. Buyers needing a self-contained line-voltage sensor or wireless communication will need a different product type.

Highlights

  • Ultrasonic sensing covers up to 2000 sq ft for reliable occupancy detection
  • Operates on 24V DC for safe low-voltage installation in commercial spaces
  • Mounts on ceilings up to 12 ft high with 4.5 in diameter for discreet placement
  • cULus listed and UL244A compliant meeting ASHRAE 90.1 energy standards
  • Adaptive time delay adjusts up to 40 min reducing unnecessary lighting runtime

Specifications

BrandHUBBELL WIRING DEVICE-KELLEMS
TypeIndustrial Electrical Controls & Automation

Questions about this item

How does the hard-wired communication method work with the 24V DC operating voltage?

The sensor communicates via hard-wired connections and operates on 24V DC power supplied by the control unit.

What ceiling opening size matches the 4.5 in overall diameter?

The sensor has an overall diameter of 4.5 in and is designed for standard ceiling mounting at heights up to 12 ft.

How do I set the adaptive time delay up to 40 min?

The adaptive time delay adjusts automatically based on occupancy patterns; the maximum delay is 40 min and requires no manual programming.

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