Allen-Bradley 140M-F8E-C45 Circuit Breaker, 45A

The Allen-Bradley 140M-F8E-C45 Circuit Breaker delivers reliable 45 A protection for demanding industrial electrical service, maintenance, and replacement projects. Designed to pair with compatible panels using the exact part number, this breaker helps you confirm fit and protection right from the start, reducing downtime and rework.

• Exact part number fit: 140M-F8E-C45 ensures you’re selecting the correct device for your application—verify compatibility by the part number and your panel requirements.
• 45 A protection: Provides dependable overload protection for circuits feeding equipment, control interfaces, and feeders in industrial environments.
• Industrial reliability: Built to perform in service, maintenance, and replacement projects where consistent protection and predictable trip behavior matter.
• Seamless integration: Designed to work with Allen-Bradley panel configurations that accept 140M-series breakers, helping you maintain system integrity during replacements or upgrades.
• Clear, actionable use: Ideal for spare stock, retrofit installs, or new-build panels where precise protection characteristics are required.

Who this is for: maintenance technicians, plant engineers, and electrical contractors who need dependable, part-number-specific protection that integrates smoothly with existing Allen-Bradley infrastructure.

Practical use cases include protecting feeders and circuits in manufacturing lines, safeguarding control panels during equipment upgrades, and serving as a ready replacement in service and maintenance cycles. When replacing or retrofitting, always match the exact part number (140M-F8E-C45) to your application requirements to ensure proper fit and trip characteristics.

Need help matching a part number or confirming compatibility? Message us and we’ll help.