P1MB4PC40 - MINIATURE CIRCUIT BREAKER 4P CURVE C 40A

P1MB4PC40 – MINIATURE CIRCUIT BREAKER 4P CURVE C 40A

Lovato P1MB4PC40 four-pole miniature circuit breaker with a 40 A rated current, Type C tripping characteristic and 10 kA short-circuit breaking capacity.

SKU: P1MB4PC40MPN: P1MB4PC40
Price
List Price £135.66 ex VAT
Your Price (ex VAT)
£135.66
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) £135.66
Trade pricing is personalised to your account

Manufacturer Lead Time

£135.66

Why Choose the Lovato P1MB4PC40 Miniature Circuit Breaker?

The Lovato P1MB4PC40 is a premium four-pole miniature circuit breaker (MCB) engineered to provide reliable protection against overloads and short circuits in commercial, industrial and OEM electrical installations. Part of the Lovato Electric P1MB modular protection range, it combines dependable thermal-magnetic protection with a compact DIN rail mounted design for modern switchboards and automation systems.

Featuring a 40 A rated current, a Type C tripping characteristic and a 10 kA short-circuit breaking capacity, the P1MB4PC40 is ideally suited to protecting motors, transformers, power supplies and other inductive loads where moderate inrush currents occur. The four-pole configuration provides simultaneous disconnection of all conductors, improving operational safety and simplifying maintenance.

Designed for long-term reliability, the breaker features current-limiting class 3 performance, positive contact indication and compliance with major IEC, UL and CSA standards. It is also suitable for photovoltaic applications when correctly specified within the electrical installation.

Key Advantages

  • Reliable overload and short-circuit protection.
  • Four-pole configuration for complete circuit isolation.
  • 40 A rated current for industrial and commercial applications.
  • Type C tripping characteristic for moderate inrush current loads.
  • 10 kA breaking capacity for dependable fault protection.
  • Suitable for standard electrical installations and photovoltaic applications.

Key Features

  • Lovato Electric P1MB miniature circuit breaker series.
  • Four-pole thermal-magnetic protection.
  • 40 A rated operational current.
  • Type C tripping characteristic.
  • 10 kA IEC short-circuit breaking capacity.
  • Current-limiting class 3 performance.
  • Positive contact status indication.
  • 35 mm DIN rail mounting.

Reliable Protection for Industrial Power Circuits

Miniature circuit breakers automatically disconnect electrical supplies whenever overload or short-circuit conditions occur. Thermal protection responds to sustained overloads, while magnetic protection rapidly interrupts fault currents before damage can occur to connected wiring and equipment.

The Lovato P1MB4PC40 combines a 40 A current rating with a Type C tripping curve, making it particularly suitable for protecting motors, transformers and other inductive loads. Its four-pole construction ensures complete isolation of three-phase circuits during maintenance or fault conditions.

Typical Applications

  • Industrial control panels and automation systems.
  • Three-phase electrical distribution boards.
  • Motor and transformer protection.
  • Commercial electrical installations.
  • Photovoltaic power systems.
  • OEM machinery and switchgear assemblies.

Technical Specifications

Current 40 A
Phase Three Phase
Manufacturer Lovato Electric
Series P1MB
Model P1MB4PC40
Product type Miniature circuit breaker
Number of poles 4P
Number of DIN modules 4
Rated current 40 A
Tripping characteristic Type C
Rated short-circuit breaking capacity 10 kA
Rated operational voltage 230 / 400 V AC
Rated insulation voltage 440 V
Rated impulse withstand voltage 4 kV
Rated frequency 50 / 60 Hz
Current-limiting class 3
Power dissipation per pole 3.84 W maximum
Operating temperature -40°C to +70°C
Mechanical life 20,000 operations
Electrical life 10,000 operations
Mounting type 35 mm DIN rail
Protection rating IP20
Dimensions (H × W × D) Approx. 86.5 × 72 × 79.5 mm
Weight Approx. 460 g
Standards IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 and CSA C22.2 No. 235
HS Code 85362010
Poles 4-pole
Device Type MCB
Trip Curve C curve
Breaking Capacity 10 kA

Frequently Asked Questions

What is the Lovato P1MB4PC40 used for?

The Lovato P1MB4PC40 protects industrial and commercial electrical circuits against overloads and short circuits, particularly where moderate inrush currents are present.

What is the rated current?

This miniature circuit breaker has a rated operational current of 40 A.

What does the Type C tripping characteristic mean?

Type C breakers are intended for inductive loads such as motors, transformers and power supplies that generate moderate starting currents.

What is the breaking capacity of the P1MB4PC40?

The breaker provides a 10 kA short-circuit breaking capacity in accordance with IEC standards.

Can the P1MB4PC40 be used in photovoltaic applications?

Yes. The P1MB4PC40 is suitable for photovoltaic applications when correctly selected and installed in accordance with the relevant system requirements.

Trusted Electrical Protection from Lovato Electric

Lovato Electric miniature circuit breakers are trusted worldwide by electrical contractors, panel builders and automation engineers for dependable circuit protection, robust construction and long-term reliability.

● 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...