Precision protection for modern electrical systems

Introducing the LOVATO Electric P5 electronic trip Moulded Case Circuit Breaker (MCCB) range

Available from 40A to 800A, the P5 Series delivers highly accurate protection, flexible adjustment and dependable performance for industrial, commercial and renewable energy applications.

Designed for panel builders, OEMs and electrical engineers who need greater control than traditional electromechanical MCCBs can provide.

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Why choose the P5 Series?

Instead of simply protecting electrical circuits, the P5 Series gives engineers complete control over how that protection operates.

Key advantages include:

  • Electronic trip technology for exceptional tripping accuracy
  • Adjustable current settings across a wider operating range
  • Short circuit breaking capacity up to 65kA at 400V
  • Adjustable short circuit time delay
  • 3 and 4 pole versions
  • Simple coordination with downstream protection devices
  • Overload indication LED
  • Compact design
  • Easy installation
  • Reduced stockholding thanks to wider adjustment ranges

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What is a Moulded Case Circuit Breaker (MCCB)?

A Moulded Case Circuit Breaker (MCCB) is an electrical protection device designed to safeguard electrical circuits and equipment against overloads and short circuits.

Unlike miniature circuit breakers, MCCBs are designed to protect higher current applications, making them ideal for industrial machinery, commercial buildings, power distribution systems and renewable energy installations.

In addition to circuit protection, the LOVATO Electric P5 Series can also be used as an isolation device, allowing electrical systems or individual sections to be safely disconnected during maintenance or emergency situations.

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Why electronic trip units are better

One of the biggest differences between the P5 Series and many conventional MCCBs is the use of an electronic trip unit.

Many competing MCCBs still rely on electromechanical trip technology, which typically offers:

  • Fixed protection settings
  • Narrow adjustment ranges
  • Lower tripping accuracy

The P5 electronic trip unit offers greater flexibility.

Benefits include:

Greater precision

Accurate overload and short circuit protection helps reduce nuisance tripping while maintaining equipment safety.

Wide current adjustment

Each breaker covers a broader current range, reducing the number of individual product variants required.

Adjustment short
circuit delay

Selected models allow engineers to introduce a controlled delay before tripping during short circuit conditions, making selective coordination much easier.

Improved selectivity

Coordinate upstream and downstream protection devices more effectively to minimise unnecessary system shutdowns.

P5 3 pole

P5 3 pole

Feature

Benefit

40A–800A range

Suitable for a wide variety of applications

Electronic trip unit

Greater accuracy than electromechanical devices

50kA Icu* (up to 250A

High fault protection

65kA Icu (400A–800A)

Excellent short circuit performance

Adjustable protection settings

Greater application flexibility

Adjustable short circuit delay

Improved coordination

Overload LED indicator

Faster diagnostics

3 & 4 pole versions

Suitable for different installation requirements

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Typical applications

Machines & automation panels

 

Accurate overload and short circuit protection helps reduce nuisance tripping while maintaining equipment safety.

Photovoltaic systems

Within the AC section of solar installations, the P5 Series can be used as an Interface Switch (IS), positioned between the inverter output and the electrical network.

Its electronic protection provides dependable performance in renewable energy installations where reliability is essential.

Plastic processing machinery

Injection moulding and extrusion equipment require stable electrical protection to minimise downtime and protect valuable machinery.

Packaging & food processing

Production lines demand reliable operation. The P5 Series helps maintain continuity while providing accurate overload protection for motors, conveyors and automation systems.

Machine tools

Suitable for CNC machines, machining centres and industrial equipment requiring dependable circuit protection and isolation.

HVAC systems

Protect pumps, compressors, fans and air handling units with adjustable protection that can be tailored to the installation.

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Why engineers choose the P5 Series

✔ Better protection accuracy

✔ Easier coordination

✔ Reduced stockholding

✔ Faster fault identification

✔ Suitable for industrial applications

✔ Flexible adjustment

✔ High breaking capacity

✔ Designed for modern
electrical systems

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Time to upgrade your circuit protection?

Whether you are designing a new control panel, specifying electrical protection for machinery or upgrading an existing installation, the LOVATO Electric P5 Series delivers the precision, flexibility and performance demanded by modern electrical systems.

Speak with our technical specialists today to discuss your application or download the latest product brochure.

Frequently Asked Questions

What is an MCCB used for?
An MCCB protects electrical systems against overloads and short circuits while also providing safe isolation for maintenance.

What is the difference between an MCCB and an MCB?
MCBs are generally used for lower current applications, whereas MCCBs are designed for higher current ratings and offer adjustable protection settings.

Why choose an electronic trip unit?
Electronic trip units provide much greater accuracy, wider current adjustment ranges and improved protection coordination compared with traditional electromechanical mechanisms.

What current ratings are available?
The LOVATO Electric P5 Series is available from 40A through to 800A.

What is Icu?
Icu is the ultimate short circuit breaking capacity of a circuit breaker. It indicates the maximum fault current the device can safely interrupt.

Can the P5 Series be used as an isolator?
Yes. The P5 Series is suitable for circuit isolation during maintenance and emergency shutdown procedures.

Which industries typically use MCCBs?
Common applications include:

  • Industrial automation
  • OEM machinery
  • Manufacturing
  • Renewable energy
  • HVAC
  • Food processing
  • Packaging
  • Water treatment
  • Commercial buildings