Eaton BAB3045H - 45 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Eaton BAB3045H is a robust 45A, 240V, 3-pole bolt-on molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built for reliability in demanding environments, it delivers consistent protection across a range of residential, commercial, and light industrial applications.

Why engineers choose the BAB3045H

• Provides a rigid, vibration-resistant bus connection that stays solid through routine operation and site conditions, reducing loose connections and maintenance needs over time.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection performance by handling both overloads (thermal) and short circuits (magnetic) with appropriate response across temperature and supply variations.
• 3-pole, 240V design: Ideal for three-phase distribution, ensuring synchronized switching across all phases to protect 3-phase equipment and loads.
• Molded case construction: Built to endure common electrical environments while providing reliable insulation and protection for the protected circuit.
• OEM-compatible: Specifically designed to be compatible with matching Eaton OEM loadcenters and panelboards, simplifying replacement and upgrade projects.

Technical profile at a glance

• Manufacturer: Eaton
• Part Number: BAB3045H
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 45A
• Voltage Rating: 240V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection in panelboards and loadcenters

Who this is for and how it helps

This breaker is a smart choice for electricians and facility managers upgrading or maintaining distribution panels that serve three-phase equipment, motors, or lighting in small commercial spaces, multi-residential buildings, or light industrial settings. The bolt-on design makes field installation straightforward in compatible Eaton panelboards, while the thermal-magnetic trip unit gives predictable protection — even as loads vary or ambient temperatures shift.

Use cases and practical scenarios

• Replacing a worn-out 3-pole breaker in an Eaton panelboard to restore reliable protection for commercial lighting and HVAC circuits.
• Upgrading a 3-phase service to a dedicated 45A 240V protection device for a small manufacturing line or processing equipment.
• Installing a new subfeed or distribution leg in a compatible loadcenter where rigid, vibration-resistant mounting is beneficial in challenging environments.

Installation and ongoing considerations

For optimal performance, pair the BAB3045H with matching Eaton panelboards and loadcenters to ensure full compatibility and reliable electrical contact. Before installation, ensure the main power is de-energized and follow your local electrical code guidelines. The bolt-on mounting offers a secure and durable connection, while the molded case design helps minimize wear on conductors and bus connections over time.

When you need precise, dependable protection for a 3-phase 240V circuit with straightforward installation and OEM compatibility, the Eaton BAB3045H 45A 240V 3-pole bolt-on molded case circuit breaker delivers clear, real-world value for safe and efficient electrical distribution.