Eaton CHB330 - 30 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Eaton CHB330 is a 30A, 240V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch-circuit protection in panelboards and load centers. Built for reliability in residential, commercial, and light industrial environments, this MCCB provides precise protection where you need it most.

Why the Eaton CHB330 stands out

• Secure bolt-on mounting creates a rigid, vibration-resistant bus connection, reducing the risk of loose contacts and ensuring consistent electrical performance in panels exposed to vibration or movement.
• Thermal-magnetic trip unit combines thermal overload protection with magnetic short-circuit protection, delivering stable, repeatable protection across varying loads and fault conditions.
• OEM-compatible design is engineered to work with matching Eaton load centers and panelboards for straightforward, reliable replacement and interchangeability.
• 3-pole configuration at 240V suits three-wire or three-phase applications, making it ideal for both 240V single-panel layouts and smaller 3-phase installations.
• Versatile for multiple settings—from home service panels to light commercial equipment and small industrial circuits—where predictable protection is critical.

What you gain in your electrical protection system

The CHB330 protects against overcurrent and short circuits on every branch circuit it serves. With its bolt-on design and robust trip mechanism, you get predictable tripping behavior, quick fault clearance, and a dependable shield for downstream devices and wiring. It’s an exact fit for electricians upgrading or stocking replacement parts for Eaton panelboards and load centers.

Key specifications

• Manufacturer: Eaton
• Part Number: CHB330
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 30A
• Voltage Rating: 240V
• Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases and practical scenarios

• Upgrading or stocking replacement parts for Eaton panelboards and load centers in residential or light commercial buildings.
• Protecting 30A, 240V branch circuits such as HVAC disconnects, water heaters, and major receptacle clusters in small offices or workshops.
• Implementing reliable protection for three-wire 240V circuits in mixed-use spaces where panel vibration is a consideration.
• Specifying a consistent, OEM-compatible protection solution in projects that standardize on the Eaton CH family for maintenance and future servicing.

When selecting a circuit breaker for 240V, 3-pole applications, the Eaton CHB330 delivers a precise combination of mounting integrity, protective performance, and compatibility that helps you keep panels compliant and dependable over time. If you’re wiring or updating panelboards in residential, commercial, or light industrial settings, this 30A, 240V bolt-on MCCB is-built to fit and function as intended—today and tomorrow.