Eaton CHH3090 - 90 A, 3-Pole Bolt-On Circuit Breaker | AmpState

The Eaton CHH3090 is a 90A, 3-pole bolt-on molded case circuit breaker designed to protect branch circuits in panelboards and load centers with reliability you can feel. Built for steady performance in real-world environments, this device helps keep electrical systems safe from overcurrent and short-circuit faults without slowing down installation or service time.

Why this breaker stands out

• Secure bolt-on mounting delivers a rigid, vibration-resistant bus connection, reducing the risk of connection looseness in demanding installations.
• Thermal-magnetic trip unit combines dependable thermal overload protection with instantaneous magnetic trip for short circuits, providing stable, repeatable protection across temperature and load variations.
• OEM-compatible design engineered to work with matching Eaton load centers and other OEM panelboards for coordinated protection and simplified stocking.
• Three-pole, 90A configuration is ideal for three-phase circuits common in commercial and light industrial applications, as well as certain residential multi-wire setups.

Key specifications at a glance

• Manufacturer: Eaton
• Part Number: CHH3090
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 90 A
• Number of Poles: 3
• Mounting Style: Bolt-on
• Applications: Branch circuit overcurrent and short-circuit protection

Ideal use cases

Whether you’re wiring a residential service panel with three-phase feeders, outfitting a commercial electrical room, or provisioning light industrial equipment, the CHH3090 provides dependable protection where it matters most. It’s particularly well-suited for:

• Three-phase panelboards that require a secure bolt-on connection
• Load centers that benefit from a stable, repeatable protection profile
• Systems that demand compact, reliable protection for branch circuits

How this fits into your electrical system

Choose the CHH3090 when your panelboard or load center supports bolt-on MCCBs and you need robust three-phase protection for 90 amps. Its trusted thermal-magnetic trip ensures protection remains consistent through varying loads and environmental conditions, reducing nuisance trips while guarding wiring and connected equipment.

What makes it practical

• Reduces maintenance concerns with a design aimed at stable, long-term protection
• Streamlines replacement or retrofits by aligning with Eaton’s CH-series and compatible OEM panels
• Provides clear, immediate protection for critical circuits in commercial and light industrial settings