MOLDED CASE CIRCUIT BREAKERS

Explore ABB's comprehensive portfolio of air circuit breakers—from next-generation adaptive technology to proven reliable solutions. Engineered for maximum safety, efficiency, and operational continuity across industrial, commercial, and utility applications worldwide.

SMARTER PROTECTION FOR MODERN ELECTRICAL INFRASTRUCTURE

ABB's molded case circuit breaker portfolio delivers proven protection and innovation. Whether you need next-generation adaptive technology with embedded intelligence, reliable mid-range performance with thermal-magnetic protection, or compact economical solutions, our MCCBs combine superior safety, efficiency, and ease of use to optimize your electrical distribution system.

SACE TMAX XT

Next-generation molded case circuit breakers with advanced electronic trip units and embedded Bluetooth connectivity for intelligent power distribution

:

  • Reliable and flexible protection for a wide range of low-voltage power distribution applications. 
  • Advanced trip units and smart connectivity enable precise protection, monitoring and easier commissioning.
  • A comprehensive range of frame sizes, configurations and accessories simplifies installation and adapts to different system requirements.

:

  • Industrial Manufacturing, Infrastructure
  • Commercial Buildings, Data Centers
  • Energy & Utilities, Power Generation

SACE TMAX T

A complete range of moulded case circuit breakers from 320 to 3200 A for low voltage civil and industrial installations.

:

  • High performance and reliable protection for a wide range of low-voltage power distribution applications.
  • Flexible protection solutions with thermal-magnetic and electronic trip units to meet different application requirements. 
  • A comprehensive range of sizes, configurations and accessories enables easy integration and adaptation to different system designs.

:

  • Industrial Switchboards, Motor Control Centers, Equipment Integration
  • Modular Panel Applications, Standard Industrial Distribution

SACE FORMULA DSA

Compact molded-case circuit breakers for power distribution and motor protection in industrial and commercial applications

:

  • Formula DSA offers exceptional value with simple thermal-magnetic protection for straightforward distribution applications.
  • Compact design maximizes panel space efficiency while maintaining reliable short-circuit protection and durability across industrial and commercial environments.

:

  • Commercial Buildings, Budget-Conscious Applications
  • Standard Switchboards, Industrial Facilities ,Small to Medium Enterprises

TMAX LINK

Industrial-grade MCCB with link/hinge technology for modular panel integration

:

  • Tmax Link utilizes ABB's high-performance molded case circuit breaker technology with innovative link/hinge connections for seamless modular panel design.
  • Supporting frame sizes up to 250A with interrupting ratings up to 200kA at 240V, this solution enables efficient compact switchboards with optimized spacing.

:

  • Industrial Switchboards, Motor Control Centers, Equipment Integration
  • Modular Panel Applications, Standard Industrial Distribution

TEY LIGHTING PANEL CIRCUIT BREAKERS

Electronic trip unit variant for advanced distribution control

:

  • TEY Breaker combines traditional molded case circuit breaker reliability with advanced electronic trip functionality for precise overcurrent protection and selective coordination.
  • Available in multiple frame sizes with intuitive adjustable settings for customizable protection schemes.

:

  • Industrial Applications, Motor Starting, Advanced Protection Schemes
  • Commercial Distribution, Selective Coordination

THERMAL MAGNETIC E150

Mid-range thermal-magnetic alternative for 150A frame size

:

  • The E150 product line provides proven thermal-magnetic protection rated up to 150 Amps and 600 Volts AC for straightforward distribution requirements.
  • Available in multiple pole configurations with reliable fixed thermal-magnetic trip units suitable for reverse feed applications.

:

  • Commercial Buildings, Standard Industrial, Building Distribution
  • Panelboards, Motor Control Centers

RECORD PLUS

Record Plus is a family of molded case circuit breakers designed to provide dependable protection , flexibility and easy integration across a broad range of electrical equipment and applications.

:

  • Broad range of external accessories
  • Compact design for easy integration into equipment
  • Ratings available up to 600 A

:

  • Electrical distribution systems
  • Commercial and industrial facilities
  • Power distribution equipment

FREQUENTLY ASKED QUESTIONS

Tmax XT features advanced electronic trip units with embedded Bluetooth connectivity, higher interrupting ratings (up to 100 kA @ 480V), and frame sizes up to 1200A. Tmax T provides proven thermal-magnetic protection with frame sizes up to 630A and lower interrupting ratings (up to 65 kA). Choose Tmax XT for advanced applications requiring diagnostics and connectivity, or Tmax T for cost-effective reliable protection.

Formula DSA is ideal for budget-conscious projects with standard protection requirements where frame sizes up to 250A and interrupting ratings up to 25 kA are sufficient. It provides cost-effective thermal-magnetic protection for small commercial and industrial applications without advanced features or connectivity requirements.

Embedded Bluetooth in Tmax XT enables smartphone interaction for commissioning, diagnostics, and maintenance without direct contact with the breaker. This improves worker safety, enables predictive analytics, reduces commissioning time, and supports remote monitoring and condition-based maintenance strategies.

Yes, ABB offers retrofit solutions to upgrade existing molded case circuit breaker installations to newer Tmax XT and Tmax T platforms. Our technical team can assess compatibility and provide upgrade paths that minimize installation disruption and system redesign requirements.