The Bulletin 140G Molded Case Circuit Breakers have nine different frame sizes with a range of 10...3000 A to accommodate your required current ratings and breaking capacities. With a wide range of operators and accessories, these circuit breakers provide the protection of circuits against overload, short circuit, and ground fault.

MCCBs are intended to provide overcurrent protection for conductors and equipment by opening automatically before the current reaches a value and duration that will cause an excessive or dangerous temperature in conductors or conductor insulation. Additionally, these devices can serve as the main disconnecting means for a control panel. This protection pertains to low level overcurrent, and short-circuit current.

Overview

• Offers 3- and 4- pole versions to support worldwide applications
• Includes high interrupting ratings from 18...100 kA in a compact device
• Offers a wide range of operating mechanisms to fit a variety of panel configurations
• Provides a greater customization in trip units
• Offers a wide range of accessories for global availability
• Approved for global application: UL, CSA, CCC, and IEC performance interrupting/breaking capacity 
• Offers current-limiting option (H, J, and K frames) that provides half-cycle interrupt to limit let-through energy

Click below to start shopping for the Allen-Bradley 140G Molded Case Circuit Breakers.