Eaton BAB1045 - 45 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Eaton BAB1045 is a 45 A, 120 V, 1-pole bolt-on molded-case circuit breaker engineered for reliable branch circuit protection in panelboards and load centers. Built to withstand the demands of residential, commercial, and light industrial environments, this unit blends rugged mounting with precise protection to keep electrical systems safe and steady.

• Secure bolt-on mounting: Provides a rigid, vibration-resistant bus connection that stays tight even in busy panels or buildings with variable vibration.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection by sensing both overcurrent and short-circuit events, reducing nuisance trips and ensuring fast response when faults occur.
• OEM panel compatibility: Designed to pair with matching Eaton OEM load centers and panelboards, ensuring seamless installation and consistent performance.
• Right-sized for multiple environments: 45 A capacity at 120 V makes it suitable for branch circuits in homes, offices, retail spaces, and light industrial setups.

Technical specifications at a glance

• Manufacturer: Eaton
• Part number: BAB1045
• Type: Thermal-magnetic molded-case circuit breaker
• Amperage rating: 45 A
• Voltage rating: 120 V
• Number of poles: 1
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

This breaker is the practical choice when you need dependable protection without sacrificing panel layout or serviceability. It’s ideal for replacing a worn unit in existing Eaton panelboards or for new installs in compatible load centers where a single-pole, 45 A breaker is appropriate for lighting circuits, outlets, or small machinery feeds.

Practical tips for best results: ensure your panelboard is compatible with bolt-on molded-case breakers, confirm the OEM compatibility, and follow standard safety procedures when working with energized equipment. With the BAB1045, you’ll experience secure operation, predictable tripping behavior, and long service life in everyday electrical systems.