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Eaton Circuit Breaker: Engineered Protection for Critical Power Systems

From miniature circuit breakers to molded case protection devices — precision-engineered to IEC 60947 and UL 489 standards, with breaking capacities up to 50kA. Trusted by engineers in 55+ countries.

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Eaton Circuit Breaker product lineup including MCB, MCCB and RCD devices

Circuit Protection Product Range

Comprehensive protection solutions from 1A to 630A rated current, engineered for residential, commercial, and heavy industrial applications.

Molded Case Circuit Breaker (MCCB)
Featured Series

Molded Case Circuit Breakers (MCCB)

Our flagship MCCB series delivers breaking capacities from 10kA to 50kA across 63A to 630A rated current range. Available with thermal-magnetic or electronic trip units, and supporting IEC 61850 communication for SCADA integration.

  • Rated Current: 63A ~ 630A
  • Breaking Capacity: 10kA ~ 50kA at 400V
  • Trip Unit: Thermal-Magnetic / Electronic
  • Standards: IEC 60947-2, UL 489
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Miniature Circuit Breaker (MCB)

Miniature Circuit Breakers (MCB)

1A to 63A rated current, 6kA to 10kA breaking capacity. B, C, D curve characteristics for diverse application requirements.

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Residual Current Device (RCCB)

Residual Current Devices (RCCB)

30mA and 300mA sensitivity ratings for personnel and equipment protection. Type A and Type AC variants per IEC 61008.

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RCBO Combined Protection

RCBO Breakers

Combined overcurrent and residual current protection in a single DIN-rail module. Saves panel space while maintaining full protection per IEC 61009.

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5M+ Units Produced Annually
55+ Countries Served
20+ Years of Excellence
<0.08% Field Failure Rate

Industries We Serve

Engineered circuit protection solutions for mission-critical applications across six major industrial sectors.

Manufacturing Industry

Manufacturing

Production line protection from 63A panel boards to 630A motor control centers.

Data Centers

Data Centers

Tier III/IV protection with selective coordination and rapid fault clearance.

Commercial Buildings

Commercial Buildings

Distribution boards and RCD protection for offices, retail, and hospitality venues.

Energy & Utilities

Energy & Utilities

Medium-voltage protection and switchgear integration for generation and distribution.

Transportation

Transportation

Vibration-resistant breakers and arc flash protection for rail and transit systems.

Petrochemical

Petrochemical

ATEX-rated protection devices for hazardous area classifications Zone 1 and Zone 2.

Eaton Circuit Breaker quality engineering

Why Engineers Specify Our Circuit Breakers

Every component leaves our factory after rigorous thermal cycling, vibration, and short-circuit testing to IEC 60947 standards. Our field failure rate consistently falls below 0.08%.

Proven Reliability

MTBF exceeding 120,000 hours across our entire protection device range. 100,000-cycle mechanical endurance validated.

Safety-First Engineering

Arc energy limitation below 1.2 cal/cm2 in standard configurations. Residual current detection from 30mA for personnel protection.

Multi-Standard Compliance

UL, CE, CCC, and IEC 61439 certified across our full product range. Documentation packages available for every order.

Global Supply Network

Distribution partners in 55+ countries with strategic warehouse hubs ensuring 5-day standard lead times on stocked items.

What Our Clients Say

Hear from the engineers and procurement professionals who specify our products in critical applications.

“We have been specifying Eaton Circuit Breaker MCCBs in our panel assemblies for over eight years. The consistent breaking capacity performance and fast documentation response have made them our go-to supplier for critical infrastructure projects.”
David R. Chen Chief Electrical Engineer, Pacific Industrial Systems
“When we expanded our distribution into the European market, we needed a supplier who could provide CE-marked products with complete documentation on day one. Eaton Circuit Breaker had every Declaration of Conformity and test report ready before we placed our first order.”
Maria L. Hoffmann Procurement Director, EuroPower Distribution GmbH
“The technical support team diagnosed our arc flash coordination issue within two hours of our call and provided revised protection settings within 24 hours. That level of responsiveness keeps our critical production lines running.”
James T. Okonkwo Plant Engineering Manager, Continental Packaging Ltd.

Frequently Asked Questions

Common questions about our circuit breakers, certifications, and ordering process.

Our molded case circuit breakers are available with breaking capacities of 10kA, 16kA, 25kA, 36kA, and 50kA at 400V AC. Higher ratings up to 85kA are available in our premium series with electronic trip units. All devices are tested and certified per IEC 60947-2 and UL 489.

Yes. Our core product range carries dual certification: IEC standards (tested by accredited laboratories) and UL listing for the North American market. We also hold CE marking for the European Economic Area, CCC for China, and additional regional certifications upon request. Complete compliance documentation packages are available with every shipment.

Standard stocked items ship within 5 business days from our regional distribution hubs in North America, Europe, and Asia. For critical path orders, our express fulfillment program guarantees 48-72 hour dispatch. Custom-configured assemblies typically require 6-10 weeks depending on specifications.

Absolutely. Our applications engineering team provides full selectivity and discrimination studies using industry-standard software. We analyze your single-line diagram, calculate fault levels, and recommend optimal protection settings to ensure proper cascading coordination. This service is complimentary for project orders above minimum threshold values.

Thermal-magnetic trip units use a bimetallic strip for overload detection and an electromagnetic coil for short-circuit protection. They are simple, reliable, and cost-effective for standard applications. Electronic trip units offer programmable protection curves, adjustable thresholds, communication interfaces (Modbus RTU/TCP), and fault data logging, making them ideal for complex systems requiring SCADA integration and post-event analysis.

Ready to Specify Reliable Circuit Protection?

Our engineering team will review your project requirements and propose a tailored protection solution within 48 hours.

  • Complimentary protection coordination study for qualifying projects
  • Complete compliance documentation with every quotation
  • Dedicated project engineer assigned to your inquiry
  • 5-day standard delivery on stocked products

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