Molded Case Circuit Breakers (MCCB):
reliable and scalable protection for your installations

In industrial and commercial environments, the reliability of protection devices is essential to ensure the safety of people, protect equipment, and maintain service continuity.


That’s where Molded Case Circuit Breakers (MCCBs) play a central role in electrical distribution. Versatile and durable, they provide a tailored solution to meet the most varied demands—from small electrical panels to large-scale installations.

A complete range to meet every need

MCCBs are available in 3-pole or 4-pole versions, with current ratings ranging from 16 A to 1600 A, depending on the model.
They effectively protect circuits against overloads, short circuits, and ground faults, while adapting to various applications—residential, commercial, or industrial.

UL 489 certification

Lovato’s circuit breakers are UL 489 certified—the benchmark standard for low-voltage protection devices in Canada.
This certification ensures the breakers meet strict requirements for safety, performance, and resistance to intensive operating conditions.

Flexible installation and mounting options

Designed with installers and system integrators in mind, MCCBs offer multiple mounting configurations: rear panel, DIN rail, or front panel with remote controls. Terminals are accessible and secure, allowing for fast and reliable wiring.

Features Details
Current range From 40 A to 600 A
Number of poles 3P or 4P
Trip unit technology Electronic
Certification standards IEC 60947-2 / UL 489 / CSA
Rated voltage Up to 690 V AC, depending on the model
Available accessories Rotary handles, auxiliary contacts, remote shunt trips, etc.
Mounting options Rear, front panel, DIN rail (depending on model)
Typical applications Distribution panels, OEMs, gensets,
commercial and industrial installations
Operating environment Designed for demanding conditions(temperature, humidity, vibrations)

This flexibility makes integration into electrical cabinets easy—regardless of project constraints.

Monitoring and communication: more than just protection

Beyond basic circuit protection, some of our MCCBs feature advanced monitoring capabilities.

This connectivity allows you to anticipate overloads, reduce downtime, and optimize the overall energy efficiency of your system.

What’s in it for you?
Better productivity and system uptime.

Why choose Lovato’s MCCBs?

Lovato’s molded case circuit breakers are designed to combine performance, simplicity, and scalability. Key advantages include:

  • Proven mechanical robustness, even in demanding environments
  • A wide range of configurations, trip curves, and accessories
  • UL 489 certification – a key standard in Canada
  • Seamless integration with Lovato systems for improved control and monitoring
  • Fast installation thanks to intuitive design
  • Compatibility with both IEC and UL markets – ideal for OEMs exporting internationally

A robust solution to protect your installations

MCCBs are far more than simple circuit interrupters. They are at the heart of modern installations—combining safety, intelligence, and reliability.

By choosing Lovato’s MCCB range, you’re opting for a long-term, adaptable solution ready to meet the challenges of today’s electrical infrastructures.