Our 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.
Popular Resources/Quicklinks
Overview
- Offers 3- and 4-pole versions to support worldwide application
- 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 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
Additional Information
- Molded Case Circuit Breaker Family Overview — From accessories to operators, watch an overview of the Molded Case Circuit Breaker family.
- Installing an Undervoltage Release Accessory — Video tutorial demonstrates step by step instructions to install the undervoltage release accessory on a 140G H- and J-Frame Molded Case Circuit Breaker.
- Installing an Auxiliary Contact — Video tutorial demonstrates step by step instructions to install an auxiliary contact on a Bulletin 140G H- and J-Frame Molded Case Circuit Breaker.
- Installing a Rotary Operating Mechanism — Video tutorial demonstrates step by step instructions to install a rotary operating mechanism on a Bulletin 140G H- and J-Frame Molded Case Circuit Breaker.
- Installing a Flex Cable Flange Mount Operator — Video tutorial demonstrates step by step instructions to install a flex cable flange mount operator on a Bulletin 140G Molded Case Circuit Breaker.
- Installing a Shunt Trip — Video tutorial demonstrates step by step instructions to install a shunt trip on a Bulletin 140G G-, H-, I-, and J-Frame Molded Case Circuit Breaker.
- Installing a Trip Unit — Video tutorial demonstrates step by step instructions to install a trip unit on a Bulletin 140G H- and J-Frame Molded Case Circuit Breaker.
- Installing a UV Release — Video tutorial demonstrates step by step instructions to install a UV Release on a Bulletin 140G G-, H-, I-, and J-Frame Molded Case Circuit Breaker.
- Our circuit and load protection products are part of the Allen-Bradley® Industrial Control Components where you get the right components, at the right price, right when you need them.
Product Selection
Specifications
Certifications
- CCC
- CE Marked
- CSA Certified
- UL Listed
- Suitable for use with IE3 Motors (IEC 60034-30)
Standards Compliance
- CSA22.2, No. 5
- IEC 60947-2
- UL489
Documentation
Resources
- Circuit Breaker Simulator Tool — This tool allows you to make a configuration, display signals, and conduct an operating simulation to learn more about 140G Molded Case Circuit Breakers and 140MG Motor Circuit Protectors.
- Global Short Circuit Current Ratings (SCCR) Selection Tool — This tool provides coordinated high fault branch circuit solutions for motor starters, soft-starters and component drives.