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Power Defense molded case circuit breaker

The Power Defense molded case circuit breaker portfolio is globally rated in a small footprint for easy adaptability no matter the application or project requirement.  A circuit breaker with communicating electronic trip units and the ability to generate the data to help you optimize your facilities' performance,  and to help keep your employees, customers and end-users safe by reducing the risk of arcflash events.

Power Defense molded case circuit breaker

Join trusted experts and learn to manage cybersecurity risk

A world dependent on connectivity and electrification needs trusted environments. Join us for Cybersecurity Perspectives: the global forum and educational program showcasing the advanced tools and resources needed to expand your cybersecurity skillset.

Predict and stop power failures before they happen

The latest circuit breaker technology, which is built into Power Defense MCCBs, delivers predictive diagnostics that help you better uncover, diagnose and stop power outages before they happen.

Take a look at the pre-recorded webinar or download the whitepaper to learn how you can better leverage the power of intelligent systems.

Smart power system - life is easier

Configure your product today with 3D drawings

Unique features in Power Defense circuit breakers

See Power Defense circuit breakers in action and learn how to monitor system faults, diagnose power quality issues, and measure reliability with breaker health.

Learn about all the advanced features!

Helping communities meet healthcare capacity requirements

The COVID-19 crisis requires unprecedented field hospitals and testing facilities. That's why we're working with the healthcare industry, contractors and consultants to deliver expertise and power management support where it matters.

Core features of the Power Defense molded case circuit breaker

  • Globally accepted platform in a number of industry standards including UL®, CSA,IEC, and CCC.
  • Power Xpert Release trip units offer features such as Breaker Health, multiple Load Alarms, and Ground Fault Alarm to help avoid costly downtime through predictive and preventative maintenance.
  • Arcflash Reduction Maintenance System helps to reduce arc flash incident energy levels, thereby reducing PPE requirements and minimizing risk while improving personnel safety and productivity.
  • The PXR trip units provide an intuitive user interface that allows you to easily view and adjust breaker settings and system performance.
  • Embedded communications and metering help to reduce cost by eliminating the need for separate communication components and associated wiring.
  • Field installable components and trip units minimize the amount of inventory while enabling the user almost infinite options to customize the breaker to the application and their specification.
Arc flash reduction
Built-in communications

Defending what you have built

Explore the features and functionalities of Eaton's globally rated molded case circuit breaker platform. 

You will be able to:

  • Protect your creations with built-in networking and predictive algorithms
  • Use accessories to customize to your application
  • Setup the trip unit via USB
  • Access the breaker with cloud communication
  • Enjoy comprehensive fault protection
  • And more

Simplify operations, and reduce your maintenance.

Eaton’s Power Xpert Protection Manager provides a clean, intuitive user interface enabling unmatched control, testing, and troubleshooting. The software is free to download and can run on any PC.

Power Defense: Superior arc flash safety

Eaton Power Defense circuit breakers provide superior safety during an arc flash event. See how much faster the event can be mitigated.


Unmatched protection

Provides incremental levels of safety to your customers, employees and end-users through the Arc Flash Reduction Maintenance System, zone selective interlocking  display and high-load alarms


Advanced communications

A foundation for IoT, with embedded communications and metering functionalities allowing fewer overall components in your power distribution panel, which means lower cost and a smaller footprint


Accepted everywhere

Globally rated, available and an accepted platform in a number of industry standards including IEC, CCC, UL, and CSA, allowing you to stock fewer products.