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White circular ceiling occupancy sensor with smooth matte finish

Hubbell Incorporated

Hubbell Incorporated ATP1500CRP Occupancy Sensor PIR 1500 sq ft White

SKU CH-1557-FMFRE

Ceiling-mounted PIR occupancy sensor covers 1500 sq ft at 12 ft height with 24V DC operation and isolated relay

  • TypeLight Switch
  • Color MappingWhite
  • Passive infrared detects motion across 1500 sq ft
  • 24 V DC operation suits low-voltage control systems
  • Adaptive time delay adjusts automatically to occupancy patterns
  • Isolated relay enables direct load switching at 120 V
  • cULus and UL244A listed for code compliance

PIR occupancy sensor for commercial ceilings

The Hubbell ATP1500CRP uses passive infrared detection across a 1500 sq ft area from a maximum 12 ft mounting height. It operates on 24V DC and communicates through hard-wired connections to a separate control unit. The unit includes an isolated relay and an integrated photocell for daylight harvesting. Its white finish suits standard office ceilings.

Isolated relay and photocell expand control options

The built-in isolated relay allows the sensor to interface with external loads rated by the connected control unit at 120V AC. The photocell prevents lights from switching on when sufficient natural light is present, reducing unnecessary energy use. Adaptive time-delay adjustment learns occupancy patterns and modifies the shut-off interval automatically. These features support compliance with ASHRAE 90.1 energy standards.

Ceiling mount with 4.5 in diameter and cULus listing

The sensor fits a standard ceiling opening measuring 4.5 in across and carries cULus listing to UL244A for safety assurance. Hard-wired installation requires access to low-voltage control wiring and a compatible power pack. The device is not suited for line-voltage direct switching or for spaces exceeding the stated coverage limit. Buyers needing wireless pairing or battery operation should consider other solutions.

Highlights

  • Passive infrared detects motion across 1500 sq ft
  • 24 V DC operation suits low-voltage control systems
  • Adaptive time delay adjusts automatically to occupancy patterns
  • Isolated relay enables direct load switching at 120 V
  • cULus and UL244A listed for code compliance

Specifications

TypeLight Switch
BrandHubbell Wiring Device-Kellems
Color MappingWhite

Questions about this item

Does the PIR sensor or its isolated relay need periodic replacement?

The sensor uses passive infrared technology with no user-replaceable parts; the isolated relay is built into the unit and is not designed for field servicing.

What limits continuous coverage when the sensor runs all day?

The 1,500 sq ft maximum coverage area and 12 ft mounting height define the detection zone; beyond those limits the sensor will not register occupancy.

How much heat or power does the 24 V DC sensor draw during constant operation?

Operating at 24 V DC, the sensor itself draws minimal power; load rating at 120 V AC depends on the connected control unit rather than the sensor.

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