Eaton BAB3040HS - 40 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Eaton BAB3040HS delivers dependable overcurrent and short-circuit protection in a compact, bolt-on package. Rated at 40A and 240V with a 3-pole configuration, this molded case circuit breaker is engineered for stable performance in panelboards and load centers where reliability matters most.

What makes it stand out

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, reducing the risk of loose contacts in panels subject to movement or vibration.
• Thermal-magnetic trip unit combines precise thermal overload protection with fast magnetic tripping for short circuits, delivering predictable, repeatable protection for your wiring and equipment.
• OEM-compatible design ensures seamless replacement in matching load centers and panelboards, preserving fit, performance, and warranty expectations.
• 3-pole configuration suited for three-phase electrical systems, ideal for commercial and light industrial applications where balanced protection across phases is essential.

Technical snapshot

• Manufacturer: Eaton
• Part number: BAB3040HS
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 40A
• Voltage rating: 240V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection for panelboards and load centers

Ideal use scenarios

• Upgrading or stocking replacement in commercial or light industrial panelboards that require reliable 3-pole protection.
• Protecting three-phase feeders and branch circuits in small to mid-size electrical distributions.
• Replacing a failed breaker in OEM-compatible panels to maintain consistent performance and plug-and-play fit.

With the Eaton BAB3040HS, you get a purpose-built solution that prioritizes secure mounting, stable protection, and compatibility with your existing panel infrastructure. It’s a practical, performance-driven choice for professionals who demand precise protection without compromising on installation efficiency or long-term reliability.