18.21.8.230.0000 Finder PIR 1pole 10A 120/230V Voltage output

Why Choose the Finder 18.21.8.230.0000 PIR Movement Detector?

The Finder 18.21.8.230.0000 is a compact PIR movement detector with voltage output, designed for automatic lighting control and occupancy detection in indoor environments. Part of Finder's Series 18, this surface-mounted detector combines passive infrared sensing with adjustable light-level and switch-off timing controls.

Operating from a 120–230 V AC, 50/60 Hz supply, the 18.21.8.230.0000 provides a voltage output for direct control of compatible loads. The switching system is rated at 10 A, while the PIR sensor provides 360° coverage with a detection area of approximately 8 m diameter at the recommended mounting height.

The detector offers an adjustable ambient light threshold of approximately 5–350 lx and an adjustable switch-off delay from 10 s to 12 min. Its compact ceiling-mounted construction, IP40 protection and operating temperature range of -10 °C to +50 °C make it a practical solution for automatic lighting in offices, corridors, hotels and other commercial buildings.

Key Advantages

• Passive infrared movement detection for automatic lighting and occupancy control.
• Wide 120–230 V AC operating range for common mains installations.
• Voltage output version for direct control of compatible electrical loads.
• 10 A switching capability for suitable lighting and control applications.
• 360° detection coverage for effective ceiling-mounted movement sensing.
• Detection area approximately 8 m in diameter.
• Adjustable 10 s to 12 min switch-off delay.
• Adjustable 5–350 lx ambient light intervention threshold.

Key Features

• Finder Series 18 PIR movement detector.
• Passive infrared (PIR) sensing technology.
• 120–230 V AC supply voltage.
• 50/60 Hz supply frequency.
• Voltage output configuration.
• 10 A switching rating.
• 360° scanning angle.
• Approximately 8 m diameter detection area.
• Recommended mounting height approximately 2.8 m.
• 10 s to 12 min adjustable switch-off delay.
• 5–350 lx adjustable ambient light threshold.
• IP40 degree of protection.
• Screw terminal connections.
• Operating temperature from -10 °C to +50 °C.

360° Ceiling-Mounted PIR Lighting Control

Ceiling-mounted PIR detectors provide effective coverage for rooms, corridors and circulation spaces by monitoring infrared changes caused by people moving through the sensing area. The Finder 18.21.8.230.0000 provides 360° detection across an approximately 8 m diameter area, making it well suited to central ceiling positions where broad coverage is required.

The integrated ambient light control allows the detector to inhibit unnecessary switching when sufficient natural or artificial light is already available. Combined with the adjustable 10 s to 12 min switch-off delay, this allows the installation to be configured for energy-efficient automatic lighting according to occupancy and local lighting conditions.

Typical Applications

• Automatic indoor lighting control.
• Offices and commercial buildings.
• Hotel corridors and communal areas.
• Hospitals and healthcare buildings.
• Schools and educational facilities.
• Stairways, hallways and circulation areas.