18.51.8.230.0300

18.51.8.230.0300 Finder PIR 1pole 10A 110/230V

Finder 18.51.8.230.0300 is a ceiling-mounted PIR movement and presence detector with a 110–230 V AC supply, 10 A single-pole output and integrated ambient light sensing for automatic lighting control.

SKU: 18.51.8.230.0300Alt SKU: 185182300300MPN: 18.51.8.230.0300
Price
List Price ex VAT
Your Price
Manufacturer Lead Time Please contact us for a delivery time before you order
Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

Trade pricing is personalised to your account

Manufacturer Lead Time

Sold in packs of 5

£89.54

Why Choose the Finder 18.51.8.230.0300 PIR Movement Detector?

The Finder 18.51.8.230.0300 is a versatile passive infrared (PIR) movement and presence detector designed for automatic lighting control in commercial, industrial and building applications. Part of the Finder 18 Series, it detects movement within its coverage area and automatically operates connected lighting or suitable control circuits.

Designed for ceiling mounting, the 18.51.8.230.0300 combines PIR detection with an integrated ambient light sensor, allowing operation to be influenced by both occupancy and surrounding illumination. Adjustable timing and light-level settings enable the detector to be configured for different environments, helping reduce unnecessary lighting operation and improve energy efficiency.

With a 110–230 V AC supply and a single-pole 10 A output contact, the Finder 18.51.8.230.0300 provides dependable automatic switching for lighting installations in offices, corridors, communal spaces, commercial premises and other indoor environments.

Key Advantages

  • PIR movement and presence detection for automatic lighting control.
  • 110–230 V AC supply suitable for common mains-powered installations.
  • 10 A single-pole output contact provides dependable load switching.
  • Integrated ambient light sensing helps prevent unnecessary daytime operation.
  • Adjustable operating parameters allow the detector to suit different applications.
  • Ceiling-mounted format provides effective coverage with a discreet installation.

Key Features

  • Finder 18 Series PIR detector.
  • Passive infrared movement sensing technology.
  • 110–230 V AC supply voltage.
  • 1 pole normally open output contact.
  • 10 A rated contact.
  • Integrated light-dependent sensor.
  • Adjustable switch-off delay.
  • Adjustable ambient light threshold.
  • Wide-area ceiling detection pattern.
  • Designed for automatic indoor lighting control.

Reliable PIR Control for Energy-Efficient Lighting

PIR detectors sense changes in infrared energy caused by people moving through their detection area. The Finder 18.51.8.230.0300 uses this technology to switch lighting automatically, providing convenient hands-free control while helping reduce energy consumption in areas that are not continuously occupied.

The integrated light sensor allows the detector to consider the available ambient illumination before switching the connected lighting. Combined with adjustable timing, this makes the Finder 18.51 suitable for a broad range of commercial and industrial spaces where reliable occupancy-responsive lighting is required.

Typical Applications

  • Office and commercial building lighting.
  • Corridors, hallways and communal areas.
  • Stairways and circulation spaces.
  • Schools and public buildings.
  • Hotels and hospitality premises.
  • Industrial and commercial facilities.
  • Energy-efficient automatic lighting systems.

Technical Specifications

Current 10 A
Voltage 230 V
Phase Single Phase
Manufacturer Finder
Series 18 Series
Model 18.51.8.230.0300
Product type PIR movement and presence detector
Sensor technology Passive infrared (PIR)
Supply voltage 110–230 V AC
Supply frequency 50/60 Hz
Output configuration 1 pole normally open
Rated output current 10 A
Mounting type Ceiling mounting
Light sensing Integrated adjustable ambient light sensor
Time control Adjustable switch-off delay
Protection rating IP40
Application Automatic lighting control
HS Code 85365080
Country of Manufacture Italy

Frequently Asked Questions

What is the Finder 18.51.8.230.0300 used for?

The Finder 18.51.8.230.0300 is a PIR movement and presence detector used to switch lighting automatically according to detected movement and ambient light conditions.

What supply voltage does the Finder 18.51.8.230.0300 require?

The detector is designed for a 110–230 V AC supply, making it suitable for common mains-powered lighting installations.

What is the contact rating of the Finder 18.51.8.230.0300?

The detector features a single-pole output contact rated at 10 A for switching compatible electrical loads.

Does the Finder 18.51.8.230.0300 detect ambient light?

Yes. It incorporates a light-dependent sensor so automatic switching can be configured according to the surrounding illumination level.

Where is the Finder 18.51.8.230.0300 typically installed?

The detector is designed for ceiling installation in areas such as offices, corridors, communal spaces, commercial buildings and other indoor locations requiring automatic lighting control.

Trusted for Automatic Building Control

Finder 18 Series PIR detectors provide reliable movement and presence sensing for commercial, industrial and public buildings, helping installers create convenient and energy-efficient automatic lighting systems.

● Service Agreements

Credit Accounts

Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.

 Tick  Priority sourcing and supply support

 Tick  Flexible payment terms for qualifying organisations

 Tick  Support for engineering, maintenance, and operations

500 +

Stock lines ready to ship

1,000 +

Same day dispatches

3500 +

Customers supported

28 

Trusted Manfacturers

● frequently asked questions

Common questions about our products and support

 

At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.

What product ranges do you supply

We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products. 

Can you help specify the correct part?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Do you have stock for urgent orders?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What are your delivery times and costs?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What about warranties, returns and faulty items?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

● latest blog

Discover  our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.

LED Controls: Danfoss Drives Authorised Partner

LED Controls: Danfoss Drives Authorised Partner

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...

LED Controls: Your Complete Control Panel Solution

LED Controls: Your Complete Control Panel Solution

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...