Eaton | EHB3040S | Circuit Breaker | 40A | 3-Pole | 480V | Bolt-On

Meet the Eaton EHB3040S, a dedicated 40A, 3-pole, 480V bolt-on circuit breaker built to protect and control three-phase power in demanding industrial environments. Whether you're performing maintenance, retrofitting an existing panel, or replacing a worn-out unit, this breaker is designed to drop into compatible Eaton panels with minimal effort and maximum reliability.

Key specifications

• Amperage: 40A
• Poles: 3-Pole
• Voltage: 480V
• Mounting: Bolt-On
• Reference: Part number EHB3040S is the best compatibility reference

Why this breaker stands out

• Robust bolt-on mounting delivers a secure, vibration-resistant connection suited for industrial panels and retrofit installations.
• Precisely sized for 3-phase, 480V circuits, protecting motors, drives, and feeders without unnecessary oversizing.
• Engineered for maintenance and replacement scenarios—swap in quickly to minimize downtime.
• Part-number precision (EHB3040S) reduces guesswork when sourcing compatible components for your system.

Ideal use cases

• Industrial manufacturing lines powered by 480V three-phase systems requiring reliable protection.
• Data centers or process facilities that rely on robust motor protection and power distribution solutions.
• Retrofit projects replacing aging bolt-on breakers in existing Eaton panels to restore performance and safety.

Important compatibility notes

Before ordering, confirm fit and ratings for your panel. The EHB3040S part number is the best reference for compatibility, ensuring you receive the correct mounting pattern and protection characteristics for your installation.