Eaton CHB140 - 40 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState

The Eaton CHB140 is a 40-amp, 120-volt, 1-pole bolt-on molded case circuit breaker designed to protect branch circuits from overcurrent and short circuits. Built for panelboards and load centers, it delivers dependable protection where reliability matters most.

• Secure bolt-on mounting ensures a rigid, vibration-resistant connection to the bus, reducing the risk of connection loosening in demanding environments.
• Thermal-magnetic trip unit provides stable, repeatable protection performance—thermal element handles sustained overloads, while the magnetic component quickly clears short circuits.
• OEM-compatible with matching Eaton load centers and panelboards, simplifying replacements and upgrades without sacrificing reliability.
• Versatile application suitable for residential, commercial, and light industrial installations that require trustworthy branch circuit protection.
• Clear specifications at a glance 1-pole, 40A, 120V, part number CHB140, manufacturer Eaton, bolt-on mounting for straightforward installation.

What this means in real-world use: when you’re wiring a kitchen, a service panel, or a small commercial subpanel, the CHB140 delivers consistent performance from first energization to years of operation. It’s designed to fit seamlessly into Eaton-based systems, reducing compatibility concerns and installation time while delivering precise protection for critical circuits.

Ideal for: electricians and facilities professionals seeking a reliable, compatible bolt-on breaker for Eaton panelboards and load centers; homeowners upgrading a panel with Eaton components; installers tasked with maintaining code-compliant branch protection in residential, commercial, or light industrial settings.

Practical tips:

• Verify the panelboard compatibility with the CHB series when performing replacements or upgrades.
• Use in circuits that require solid overcurrent protection with predictable, trip-based behavior under varying load conditions.
• Keep the part number (CHB140) handy for ordering replacements or matching spares to existing Eaton installations.