IMO B10B3020A MCB - 3P - B Curve - 20A - 10kA

IMO B10B3020A MCB – 3P – B Curve – 20A – 10kA

IMO B10B3020A 20A three pole B curve miniature circuit breaker with 10kA breaking capacity for industrial and commercial electrical installations.

SKU: B10B3020AMPN: B10B3020A
Price
List Price £30.50 ex VAT
Your Price (ex VAT)
£30.50
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.

SUBTOTAL (EX VAT) £30.50
Trade pricing is personalised to your account

Manufacturer Lead Time

Sold in packs of 40

£30.50

Why Choose the IMO B10B3020A Miniature Circuit Breaker?

The IMO B10B3020A is a high quality 10kA miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in industrial, commercial and OEM electrical installations. Manufactured by IMO Precision Controls, this robust protective device offers reliable circuit isolation and long service life for demanding applications.

Featuring a B curve tripping characteristic, the B10B3020A is ideal for general purpose circuits where moderate inrush currents are expected. It is commonly installed in control panels, switchboards, distribution boards and automation systems where reliable protection and straightforward maintenance are required.

With a 20A current rating, three pole configuration and 240/415V AC operating voltage, the IMO B10B3020A provides dependable protection for three phase electrical systems while complying with recognised international standards.

Key Advantages

  • High performance 10kA breaking capacity for dependable fault protection.
  • B curve tripping characteristic for general purpose electrical circuits.
  • 20A rated current suitable for industrial and commercial installations.
  • Three pole protection for three phase electrical systems.
  • Compact TS35 DIN rail mounting for simple installation.
  • Designed in accordance with recognised international standards.

Key Features

  • IMO B10 miniature circuit breaker series.
  • 20A rated current.
  • 10kA short circuit breaking capacity.
  • B curve tripping characteristic.
  • Three pole (3P) configuration.
  • 240/415V AC operating voltage.
  • 60V DC operating voltage.
  • DIN rail mounted design.

Reliable Protection for Three Phase Electrical Circuits

Miniature circuit breakers automatically disconnect electrical circuits whenever overload or short circuit conditions occur. This helps protect electrical equipment, cabling and connected loads while reducing downtime and improving installation safety.

The IMO B10 series has been developed for dependable performance in industrial automation, commercial installations and OEM equipment. The B curve characteristic makes this breaker particularly suitable for lighting, socket outlets, distribution circuits and other applications with standard inrush currents.

Typical Applications

  • Industrial control panels.
  • Commercial distribution boards.
  • Building electrical services.
  • OEM machinery.
  • Automation systems.
  • General three phase power distribution.

Technical Specifications

Current 20 A
Phase Three Phase
Manufacturer IMO Precision Controls
Series B10 Miniature Circuit Breakers
Model B10B3020A
Product type Miniature circuit breaker (MCB)
Rated current 20A
Number of poles 3 Pole
Tripping characteristic B Curve
Breaking capacity 10kA
Operating voltage 240/415V AC, 60V DC
Frequency 50/60Hz
Mounting type TS35 DIN rail
Dimensions (H × W × D) approx. 85.5 × 52.7 × 78 mm
Weight approx. 0.3 kg
Standards IEC/EN 60898, IEC/EN 60947-2, CE, VDE, KEMA
HS Code 8536201090
Country of Manufacture China
Poles 3-pole
Device Type MCB
Trip Curve B curve
Breaking Capacity 10 kA

Frequently Asked Questions

What is the IMO B10B3020A used for?

The B10B3020A protects three phase electrical circuits against overloads and short circuits in industrial, commercial and automation applications.

What does the B curve tripping characteristic mean?

A B curve breaker is intended for circuits with normal inrush currents, making it suitable for general electrical distribution and control applications.

What is the current rating of this MCB?

The IMO B10B3020A has a rated current of 20A.

What is the breaking capacity?

This miniature circuit breaker provides a 10kA short circuit breaking capacity for dependable fault protection.

How is the breaker installed?

The unit is designed for quick installation onto a standard TS35 DIN rail inside distribution boards and electrical control panels.

Trusted by Electrical Professionals Worldwide

IMO miniature circuit breakers are trusted by electrical contractors, machine builders and panel manufacturers for reliable circuit protection, compact installation and dependable long term performance.

● 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?

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...