pa12bnt20nc – photo tr pl m12, npn nc, cab

Q: What type of output does this sensor have?

The sensor provides an NPN normally closed output for connection to compatible industrial control systems.

Q: What sensing technology does the PA12BNT20NC use?

The sensor uses polarised retro-reflective photoelectric sensing for reliable detection of reflective objects.

Q: What sensor format does the PA12BNT20NC use?

The sensor uses a compact M12 cylindrical housing suitable for industrial installations.

Carlo Gavazzi PA12BNT20NC M12 photoelectric sensor with polarised retro-reflective sensing and NPN normally closed output for industrial automation applications.

SKU: PA12BNT20NCMPN: PA12BNT20NC

List Price £52.64 ex VAT

Your Price (ex VAT)

£52.64

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.

Quantity:

SUBTOTAL (EX VAT) £52.64

Trade pricing is personalised to your account

Manufacturer Lead Time

£52.64

Why Choose the Carlo Gavazzi PA12BNT20NC Photoelectric Sensor?

The Carlo Gavazzi PA12BNT20NC is a compact and reliable photoelectric sensor designed for accurate object detection in industrial automation and machine control applications. As part of the proven Carlo Gavazzi PA12 series, it provides dependable sensing performance with a rugged M12 cylindrical housing and flexible integration into industrial control systems.

Featuring a polarised retro-reflective sensing principle, NPN normally closed output and cable connection, the PA12BNT20NC is designed for applications requiring precise detection of reflective targets while reducing interference from unwanted reflections.

With a compact M12 format, long sensing capability and robust industrial construction, the Carlo Gavazzi PA12BNT20NC is suitable for conveyors, packaging equipment, automated machinery and general industrial sensing applications.

Key Advantages

Compact M12 photoelectric sensor for industrial automation.
Polarised retro-reflective sensing technology for reliable object detection.
NPN normally closed output for flexible control system integration.
Robust cylindrical housing for machine installation.
Suitable for packaging, handling and production machinery.
Reliable Carlo Gavazzi sensing technology for industrial environments.

Key Features

Carlo Gavazzi PA12 series photoelectric sensor.
Polarised retro-reflective optical sensing.
M12 cylindrical sensor format.
NPN normally closed switching output.
Cable connection version.
Compact design for space-saving installations.
Designed for industrial object presence detection.

Reliable Photoelectric Detection for Industrial Automation

Photoelectric sensors provide fast and contactless detection of objects by using optical signals to identify changes within a sensing area. The Carlo Gavazzi PA12 series offers compact sensing solutions for automated equipment where reliable detection and straightforward installation are required.

The PA12BNT20NC combines an M12 industrial housing with an NPN normally closed output, allowing dependable connection to automation controllers, PLC systems and industrial monitoring equipment.

Typical Applications

Industrial conveyors and material handling systems.
Packaging and filling machinery.
Assembly and production equipment.
Machine automation and process monitoring.
Object presence and position detection.
OEM industrial equipment.

Technical Specifications

Manufacturer	Carlo Gavazzi
Series	PA12 Photoelectric Sensors
Model	PA12BNT20NC
Product type	Photoelectric sensor
Sensing principle	Polarised retro-reflective detection
Output Type	NPN normally closed (NC)
Housing type	M12 cylindrical format
Connection type	Cable connection
Application	Industrial object detection
Installation	Machine and automation equipment mounting
Output Type	NPN
Sensing Principle	Photoelectric - retro-reflective
Housing Size	M12
Output Function	NC
Connection	Cable

Frequently Asked Questions

What is the Carlo Gavazzi PA12BNT20NC used for?

The PA12BNT20NC is used for contactless object detection in industrial automation and machine control applications.

What type of output does this sensor have?

The sensor provides an NPN normally closed output for connection to compatible industrial control systems.

What sensing technology does the PA12BNT20NC use?

The sensor uses polarised retro-reflective photoelectric sensing for reliable detection of reflective objects.

What sensor format does the PA12BNT20NC use?

The sensor uses a compact M12 cylindrical housing suitable for industrial installations.

Where is the PA12BNT20NC typically installed?

The sensor is typically installed on conveyors, packaging machinery and automated production equipment.

Trusted by Automation Engineers Worldwide

Carlo Gavazzi photoelectric sensors are trusted by automation professionals for reliable detection, compact installation and dependable performance in modern industrial control systems.

UK delivery

Delivery options

Free UK delivery on orders over £200 ex VAT. Order in-stock items before 2pm Monday to Friday for next-day delivery.

This product Lead time on request

Please contact us for a delivery time before you order

Standard delivery

£8 ex VAT · free over £200

UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.

Heavier items may be charged at a weight-based or pallet rate, shown at checkout.

Collect from our showroom

Mon–Fri, 8am–5pm

Order and pay online, then collect from our showroom.

Please allow 15–30 minutes after ordering for us to prepare your order.

Northern Ireland, ROI & export

Priced at checkout

We deliver to Northern Ireland, the Republic of Ireland and overseas.

Delivery is calculated at checkout based on your destination.

Orders with mixed availability

Shipped complete

If part of your order is on a lead time, we hold it and send everything together.

Need the in-stock items sooner? Ask us and we can split the delivery.

Business customer returns

Returns & order support

Need to return an item? Find the guidance for your order below, then contact our team before sending anything back.

Stocked items

Request within 30 days

Changed your mind or ordered the wrong item? Request a return within 30 days of receipt. There is no restocking charge.

Items must be unused, in resalable condition and in their original packaging, and returns need our approval first. Return carriage is at your cost, and the original delivery charge is not refunded.

Faulty or damaged items

Tell us as soon as possible

Faulty, damaged on delivery or the wrong product supplied? Contact our team as soon as possible with the details.

We will review the issue and arrange an appropriate resolution under our terms and conditions and your statutory rights.

Made-to-order items

Manufacturer approval needed

Manufactured, configured and special-order products can only be returned with the manufacturer’s approval. Any handling charge is agreed with you when you request the return.

This does not affect claims for faulty goods or items that do not meet the agreed specification.

LED Controls showroom with electrical products on display

Let’s get your return sorted.

Send your order number, product details and reason for return. For faults or delivery damage, include photographs if available. We will confirm the next steps.

Email returns team 01706 242050

The 30-day return request period applies to change-of-mind returns for stocked items. It does not limit your statutory rights for faulty or non-conforming goods.

● 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.

Priority sourcing and supply support

Flexible payment terms for qualifying organisations

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?

What are your delivery times and costs?

What about warranties, returns and faulty items?

● 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…

by admin | Aug 11, 2026 | News

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

by admin | Jan 17, 2026 | Product Spotlight

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