P1MB1NC40 - MINIAT. CIRCUIT BREAKER 1P+N CURVE C 40A

P1MB1NC40 – MINIAT. CIRCUIT BREAKER 1P+N CURVE C 40A

Lovato P1MB1NC40 miniature circuit breaker with a 40 A rated current, Type C tripping characteristic, 1P+N configuration, two DIN module construction and 6 kA breaking capacity.

SKU: P1MB1NC40MPN: P1MB1NC40
Price
List Price £53.82 ex VAT
Your Price (ex VAT)
£53.82
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) £53.82
Trade pricing is personalised to your account

Manufacturer Lead Time

£53.82

Why Choose the Lovato P1MB1NC40 Miniature Circuit Breaker?

The Lovato P1MB1NC40 is a robust miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in low-voltage electrical installations. Part of the Lovato Electric P1MB series, it delivers dependable thermal-magnetic protection for commercial, industrial and OEM electrical systems.

Featuring a 40 A rated current, Type C tripping characteristic and a 6 kA short-circuit breaking capacity, the P1MB1NC40 is suitable for circuits supplying equipment with moderate inrush currents, including HVAC equipment, power distribution circuits, transformers and small motors.

Its 1P+N configuration provides overcurrent protection on the phase conductor whilst simultaneously switching the neutral conductor. The compact two DIN module design enables efficient installation on a standard 35 mm DIN rail, making it ideal for modern modular distribution boards and control panels.

Key Advantages

  • Reliable thermal-magnetic protection against overloads and short circuits.
  • 40 A rated current for higher-current distribution circuits.
  • Type C tripping characteristic accommodates moderate equipment starting currents.
  • 6 kA breaking capacity provides dependable fault-current interruption.
  • 1P+N configuration switches both phase and neutral conductors.
  • Energy-limiting class 3 reduces fault energy.
  • Compact two-module construction conserves panel space.
  • Simple installation onto a standard 35 mm DIN rail.

Key Features

  • Lovato Electric P1MB series.
  • 40 A rated current.
  • Type C tripping characteristic.
  • 1P+N pole configuration.
  • 6 kA short-circuit breaking capacity.
  • 230/400 V AC rated operational voltage.
  • 440 V rated insulation voltage (Ui).
  • 4 kV impulse withstand voltage (Uimp).
  • Thermal-magnetic operating mechanism.
  • DIN rail mounting with screw terminals.

Reliable Protection for High-Current Electrical Circuits

The Lovato P1MB1NC40 combines thermal and magnetic tripping technologies to protect electrical wiring and connected equipment. The thermal element responds to prolonged overload conditions, whilst the magnetic element rapidly disconnects the circuit during short-circuit faults, helping reduce equipment damage and electrical downtime.

Its Type C operating characteristic is ideal for circuits containing equipment with moderate inrush currents, including HVAC equipment, transformers, power supplies and small motors. The 1P+N configuration also provides convenient phase and neutral switching for improved circuit isolation.

Typical Applications

  • Commercial distribution boards.
  • Industrial control panels.
  • HVAC systems.
  • Power distribution circuits.
  • Small motors and inductive loads.
  • Control transformers and power supplies.
  • Automation systems.
  • Machine control and auxiliary circuits.

Technical Specifications

Current 40 A
Phase Single Phase
Manufacturer Lovato Electric
Series P1MB
Model P1MB1NC40
Product type Miniature circuit breaker
Number of poles 1P+N
Protected poles 1
Rated current 40 A
Tripping characteristic Type C
Rated operational voltage 230/400 V AC
Rated insulation voltage (Ui) 440 V
Rated impulse withstand voltage (Uimp) 4 kV
Rated frequency 50 / 60 Hz
Short-circuit breaking capacity 6 kA
Energy limiting class 3
Power dissipation per pole 3.84 W
Electrical endurance 10,000 operations
Mechanical endurance 20,000 operations
Operating temperature -40°C to +70°C
Storage temperature -40°C to +80°C
Maximum altitude 2,000 m
Mounting type 35 mm DIN rail
Number of DIN modules 2
Terminal tightening torque 1.8 to 2 Nm
Conductor size 1 to 35 mm²
Protection rating IP20
Dimensions (H × W × D) approx. 86.5 × 36 × 79.5 mm
Weight approx. 190 g
Standards IEC/EN 60898-1 and IEC/EN 60947-2
HS Code 85362010
Poles 1-pole + N
Device Type MCB
Trip Curve C curve
Breaking Capacity 6 kA

Frequently Asked Questions

What is the Lovato P1MB1NC40 used for?

The P1MB1NC40 protects low-voltage electrical circuits against overloads and short circuits in commercial, industrial and automation applications.

What is the rated current of the P1MB1NC40?

The Lovato P1MB1NC40 has a rated current of 40 A.

What does the Type C tripping characteristic mean?

Type C miniature circuit breakers are designed for circuits with moderate inrush currents, making them suitable for transformers, HVAC equipment, lighting and small motors.

What is the short-circuit breaking capacity?

The P1MB1NC40 has a rated short-circuit breaking capacity of 6 kA.

How many DIN modules does the breaker occupy?

The breaker occupies two DIN modules and mounts directly onto a standard 35 mm DIN rail.

Trusted Electrical Protection from Lovato Electric

Lovato Electric miniature circuit breakers are trusted by electrical contractors, panel builders and OEM machine manufacturers worldwide for dependable protection of commercial and industrial electrical systems.

● 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...