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White ceiling occupancy sensor 4.5 in diameter with mounting hardware

Hubbell Incorporated

Hubbell Incorporated ATU2000C occupancy sensor 2000 sq ft White

SKU CH-7P93-A91B8

Ceiling-mounted ultrasonic occupancy sensor covering 2000 sq ft at 24 V DC with adaptive time delay up to 40 minutes

  • TypeLight Switch
  • Color/FinishOffice White
  • Color MappingWhite
  • 2,000 sq ft coverage suits large offices
  • Ultrasonic sensing detects motion reliably
  • 24 V DC operation simplifies low-voltage wiring
  • cULus listed plus UL244A and ASHRAE 90.1 compliance
  • Adaptive delay up to 40 min reduces false-offs

Hubbell ATU2000C Ultrasonic Ceiling Sensor

The Hubbell ATU2000C is an ultrasonic occupancy sensor designed for ceiling installation. It operates on 24V DC and covers up to 2000 square feet at a maximum mounting height of 12 feet. The unit features an adaptive time delay adjustable up to 40 minutes and includes mounting hardware. It is cULus listed and complies with ASHRAE 90.1 and UL244A standards.

Suits Large Open Areas Requiring Hardwired Control

This sensor suits commercial spaces needing automatic lighting control over broad areas without line-of-sight limitations. It requires a compatible control unit to switch line-voltage loads, as the sensor itself provides only low-voltage signalling. Builders needing integrated line-voltage switching or wireless communication should look at other solutions. The fixed 4.5-inch diameter may not fit all ceiling grid openings.

24V DC Ultrasonic Operation with 2000 sq ft Coverage

The defining specification is the 24V DC ultrasonic sensing technology covering 2000 square feet. This low-voltage requirement means the sensor cannot connect directly to 120V AC lighting circuits. A separate control unit rated for the load is mandatory for operation. Verify that your control system supplies 24V DC and accepts hardwired occupancy inputs before purchasing.

Highlights

  • 2,000 sq ft coverage suits large offices
  • Ultrasonic sensing detects motion reliably
  • 24 V DC operation simplifies low-voltage wiring
  • cULus listed plus UL244A and ASHRAE 90.1 compliance
  • Adaptive delay up to 40 min reduces false-offs

Specifications

TypeLight Switch
BrandHubbell Wiring Device-Kellems
Color/FinishOffice White
Color MappingWhite

Questions about this item

Do I need a separate 24V DC control unit to power the ATU2000C sensor?

Yes, the sensor operates on 24V DC and its load rating at 120V AC depends on the control unit you connect it to.

Will the ATU2000C work with my existing 120V AC lighting circuit?

The sensor itself runs on 24V DC, but it controls a 120V AC load through the connected control unit, so your existing circuit is compatible.

How can I verify the ATU2000C is detecting motion after I install it?

The adaptive time delay adjusts up to 40 minutes; if the lights stay on while the room is occupied and turn off after vacancy, the sensor is working correctly.

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