3017810 Cembre 20420907N Pg ENTRY THREAD REDUCER

3017870 Cembre 20423621N Pg ENTRY THREAD REDUCER

Cembre 3017870 nickel-plated brass PG entry thread reducer for adapting PG36 threaded entries to PG21 cable glands. Supplied in bags of 10.

SKU: 3017870Alt SKU: 20423621NMPN: 3017870
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 25

£19.70

Why Choose the Cembre 3017870 PG Entry Thread Reducer?

The Cembre 3017870 is a precision-engineered PG entry thread reducer designed to adapt PG36 threaded enclosure entries to PG21 cable glands. Manufactured from premium nickel-plated brass, this reducer provides a durable, corrosion-resistant solution for adapting cable gland thread sizes while maintaining the integrity and protection of industrial electrical enclosures.

Designed for industrial control panels, switchgear, junction boxes and OEM machinery, the reducer enables installers to fit smaller PG cable glands into larger threaded enclosure openings without modifying the enclosure. Precision-machined threads ensure secure installation, excellent mechanical strength and dependable long-term performance in demanding industrial environments.

Supplied in bags of 10 pieces, the Cembre 3017870 is ideal for electrical contractors, panel builders and OEM machine builders requiring reliable cable gland accessories for professional industrial installations.

Key Advantages

  • Precision PG36 to PG21 thread reducer.
  • Manufactured from durable nickel-plated brass.
  • Allows smaller PG cable glands to be installed into larger threaded entries.
  • Excellent corrosion resistance for industrial environments.
  • Simple threaded installation without enclosure modification.
  • Supplied in convenient bags of 10 pieces.

Key Features

  • Manufacturer: Cembre.
  • Model: 3017870.
  • Manufacturer part number: 20423621N.
  • PG36 male to PG21 female thread conversion.
  • Nickel-plated brass construction.
  • Silver corrosion-resistant finish.
  • Designed for PG cable gland installations.
  • Supplied as a pack of 10 reducers.

Reliable Cable Entry Adaptation for Industrial Installations

PG thread reducers provide a secure and dependable method of adapting cable gland thread sizes while maintaining enclosure protection and cable entry integrity. They eliminate unnecessary enclosure modifications and help create neat, professional electrical installations.

Cembre brass cable gland accessories are trusted by panel builders, OEM manufacturers and industrial electricians worldwide for their precision engineering, corrosion-resistant construction and dependable long-term performance across demanding industrial applications.

Typical Applications

  • Industrial control panels.
  • Electrical switchgear.
  • Machine building and OEM equipment.
  • Junction and terminal boxes.
  • Power distribution systems.
  • Industrial cable gland adaptation.

Technical Specifications

Manufacturer part number 20423621N
Product type PG entry thread reducer
Thread size PG36 male × PG21 female
Thread standard PG (DIN 40430)
Material Nickel-plated brass
Colour Silver
Operating temperature -25 °C to +100 °C
Application Cable gland thread reduction
Mounting Threaded installation
Pack quantity 10 pieces
HS Code 74153900
Country of Manufacture China

Frequently Asked Questions

What is the Cembre 3017870 used for?

It adapts a PG36 threaded enclosure entry to accept a PG21 cable gland.

What material is the reducer manufactured from?

The reducer is manufactured from nickel-plated brass, providing excellent corrosion resistance and mechanical durability.

Where is this reducer typically installed?

It is commonly installed in industrial control panels, switchgear, electrical enclosures, machinery and junction boxes.

How many reducers are supplied?

The Cembre 3017870 is supplied in a bag of 10 pieces.

Is it suitable for industrial environments?

Yes. Its nickel-plated brass construction and operating temperature range of -25 °C to +100 °C make it suitable for demanding industrial applications.

Trusted by Electrical Professionals Worldwide

Cembre cable gland accessories are trusted by electrical contractors, panel builders and OEM manufacturers for delivering reliable, durable and professional cable entry solutions across industrial installations.

● 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...