Call Us Today
01706 242050
Trade Portal
2CDS381103R0404 ABB S301P-C40NA Miniature Circuit Breaker - 1+NP - C - 40 A

2CDS381103R0404 ABB S301P-C40NA Miniature Circuit Breaker – 1+NP – C – 40 A

ABB 2CDS381103R0404 S301P-C40NA miniature circuit breaker with a 40 A rating, Type C tripping characteristic, 1P+N configuration and 25 kA breaking capacity for industrial electrical protection.

SKU: 2CDS381103R0404Alt SKU: S301P-C40NAMPN: 2CDS381103R0404
Price
List Price £87.76 ex VAT
Your Price (ex VAT)
£87.76
Manufacturer Lead Time Estimated Delivery 14 weeks
Get the best trade prices Trade exclusive

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

Sign up for a trade account Quick & easy setup
SUBTOTAL (EX VAT) £87.76
Trade pricing is personalised to your account

Manufacturer Lead Time

£87.76

Why Choose the ABB 2CDS381103R0404 S301P-C40NA Miniature Circuit Breaker?

The ABB 2CDS381103R0404, also known as the S301P-C40NA, is a high-performance miniature circuit breaker (MCB) from the trusted ABB System pro M Compact S300P series. Designed for industrial and commercial electrical installations, it provides dependable protection against overloads and short circuits while offering excellent reliability in demanding environments.

Manufactured to meet recognised international standards, this MCB combines ABB's proven engineering with a compact modular design for straightforward installation and long service life. The integrated red ON/green OFF position indicator, fail-safe screw terminals and DIN rail mounting simplify installation, operation and maintenance.

Featuring a 40 A rated current, a Type C tripping characteristic, a 1P+N configuration and a 25 kA breaking capacity to IEC 60947-2, the ABB 2CDS381103R0404 is ideal for protecting power distribution circuits, industrial machinery, control panels and commercial electrical systems.

Key Advantages

  • Industrial miniature circuit breaker for overload and short circuit protection.
  • 40 A current rating for higher power electrical circuits.
  • Type C tripping characteristic suitable for general industrial loads.
  • 1P+N configuration disconnects both phase and neutral.
  • High 25 kA breaking capacity to IEC 60947-2.
  • Reliable ABB quality with quick DIN rail installation.

Key Features

  • ABB System pro M Compact S300P series.
  • S301P-C40NA model.
  • 40 A rated current.
  • Type C tripping characteristic.
  • 1 protected pole plus switched neutral (1P+N).
  • 240 V AC rated operating voltage.
  • 25 kA rated breaking capacity according to IEC 60947-2.
  • DIN rail mounting with fail-safe screw terminals.

Reliable Circuit Protection for Industrial Installations

Miniature circuit breakers automatically disconnect electrical circuits whenever overload or short circuit conditions occur. The Type C tripping curve makes this model suitable for protecting circuits with moderate inrush currents, including motors, lighting systems, power supplies and general industrial equipment.

The ABB S300P series is engineered to deliver dependable protection, high interruption performance and long operational life. Its robust construction and modular format make it an excellent choice for panel builders, OEMs and industrial maintenance engineers.

Typical Applications

  • Industrial control panels.
  • Power distribution systems.
  • Commercial electrical installations.
  • Machine building and OEM equipment.
  • Motor and auxiliary circuits.
  • Industrial automation systems.

Technical Specifications

Current 40 A
Phase Single Phase
Manufacturer ABB
Series System pro M Compact S300P
Model 2CDS381103R0404
Extended product type S301P-C40NA
Product type Miniature circuit breaker (MCB)
Rated current 40 A
Tripping characteristic Type C
Number of poles 1P+N
Protected poles 1
Rated voltage 240 V AC
Rated insulation voltage 500 V
Rated impulse withstand voltage 6 kV
Breaking capacity 25 kA (IEC 60947-2)
Service breaking capacity 10 kA
Frequency 50 / 60 Hz
Protection rating IP20
Mounting type DIN rail
Terminal type Screw terminals
Dimensions (H × W × D) approx. 88 × 35 × 69 mm
Weight approx. 0.248 kg
HS Code 85362010
Country of Manufacture Germany
Poles 1-pole + N
Device Type MCB
Trip Curve C curve
Breaking Capacity 25 kA

Frequently Asked Questions

What is the ABB 2CDS381103R0404 used for?

It protects industrial and commercial electrical circuits against overloads and short circuits while disconnecting both the phase and neutral conductors.

What is the current rating of this circuit breaker?

The ABB 2CDS381103R0404 has a rated current of 40 A.

What does the Type C tripping characteristic provide?

Type C circuit breakers are suitable for general-purpose industrial and commercial loads that experience moderate inrush currents, including motors and transformers.

What does the 1P+N configuration mean?

The breaker protects the phase conductor while simultaneously switching the neutral conductor, providing additional isolation when the device operates.

How is the breaker installed?

The device is designed for quick installation onto standard DIN rails using secure fail-safe screw terminals.

Trusted by Electrical Professionals Worldwide

ABB System pro M Compact S300P miniature circuit breakers are widely trusted by electrical contractors, industrial engineers and OEM machine builders for reliable protection, robust performance and compliance with international electrical standards.

● 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…

by | Aug 11, 2026 |

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

by | Jan 17, 2026 |

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

by | Jan 17, 2026 |

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...