The sections in this article are

• 1 Circuit Breaker Details
• 2 Ratings
• 3 Electrical Specifications
• 4 Faults—Voltages and Currents
• 5 Transmission Breakers
• 6 Distribution Breakers
• 7 Industrial Breakers
• 8 Molded-Case Circuit Breakers
• 9 Breaker Coordination
• 10 Equivalent Circuit
• 11 Conclusions