374B-1 Ceiling Mount PIR Occupancy Sensor

Ceiling Mount PIR Occupancy Sensor 374B-1: Product Description

Ceiling Mount PIR Occupancy Sensor is an energy saving device to switch electrical loads when there is presence or absence detected. This PIR timer unit is an all in one solution in a box that has been specifically designed for both surface and flush ceiling mounting and includes spring fixing arms and surface box for quick and easy installation. This compact unit is one of the smallest most discrete units available and provides a flexible, reliable fit and forget solution.

The PIR is a time switch designed to sense moving infra-red such as moving body heat, and activate a load or appliance for a specified time period. An internal light sensor will keep the load switched off when sufficient ambient light is available.

A red indicator LED signifies when timing has been re-triggered and when the unit is in its final minute of countdown. Time control is adjustable from 2 minutes to 1 hour and the unit features a white and chrome bezel allowing easy access to timing, lux and sensitivity control without the need for removing from the ceiling.

The Elkay Ceiling Mount PIR only requires a 64 mm cut out for flush mounting.

Ceiling Mount PIR Occupancy Sensor 374B-1: Key Features

  • 10A any load type
  • Sensitivity Adjustment control
  • Auto Lux and Manual Lux for extra daylight saving control
  • 10 second test mode to speed up installation time
  • Surface and Flush mount option
  • Time settings from 2mins to 1 hour
  • 360˚ Detection.
  • 7 – 10 m detection range
  • 3 wire (Live, Switch live and Neutral required)
  • Can be interlinked with other 374B-1 PIR timers
  • 64 mm cut out

Ceiling Mount PIR Occupancy Sensor 374B-1: Typical applications

  • Suitable for any load types such as lighting, heating, ventilation systems and contactor coils.
  • Suitable for use in any area where control will help reduce energy usage.

Technical details of Ceiling Mount PIR Occupancy Sensor:

  • 240V a.c. / 50Hz
  • 10A any load type
  • CE Marked
  • Complies with BS EN 60669-1, 60669-2-1, 60669-2-3.
  • Power Consumption 0.9W
  • Flame Retardant ABS material
  • RoHS compliant

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Part No. Description Configuration Finish Rating
374B-1 Ceiling Mount PIR Occupancy Sensor 3 wire 3 wire White 10A-240V
Ceiling mount PIR Fitting – Three Wire*

Wiring diagram for multiple unitsWiring Diagram for Single Unit

Ceiling mount PIR sensor detection diagram

The range is 7-10 metres based on 2.4 m mounting height. At increased heights range is increased.

Dipswitches for Ceilingmount PIR & Fireproof Ceilingmount PIR - 374B-1, 374B-1FPC Please note: The black bar denotes the position of the dip switch. Dip switch 4 is only used for Setting Automatic (150 Lux) or Manual Lux ONLY.