Eaton CHB390 - 90 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Eaton CHB390 — 90 A, 240 V, 3-Pole Bolt-On Circuit Breaker is a purpose-built protection device designed to safeguard your panelboards and load centers with dependable, consistent performance. This 3-pole, 90-amp breaker is engineered for robust branch circuit overcurrent and short-circuit protection in residential, commercial, and light industrial settings.

Why this bolt-on breaker stands out

• Secure bolt-on mounting: delivers a rigid, vibration-resistant bus connection that stays steady through compressor cycles, HVAC operation, and other dynamic panel environments.
• Thermal-magnetic trip unit: combines thermal overload protection with magnetic short-circuit protection for fast, repeatable response across a broad range of loads.
• 3-pole, 90 A, 240 V configuration: ideal for three-phase distribution in modern electrical systems, supporting reliable protection for motors, compressors, and multi-line circuits.
• OEM compatibility: designed to pair with matching Eaton OEM load centers and panelboards for a seamless install and uniform protection characteristics.
• Versatile applications: suited for new installations or upgrading existing panels in residential, commercial, and light industrial environments where dependable protection is critical.

Practical applications and use cases

Use the CHB390 to protect branch circuits that power three-phase equipment in compact commercial spaces, light-industrial facilities, or multi-zone HVAC systems. Its bolt-on design makes it a reliable choice for retrofits or panel upgrades where a secure, vibration-resistant connection is essential. When panel configurations require a sturdy, non-plug-in solution, this 3-pole breaker delivers consistent performance and straightforward installation.

Technical snapshot

• Manufacturer: Eaton
• Part number: CHB390
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 90 A
• Voltage rating: 240 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Choose the Eaton CHB390 for a dependable, purpose-built solution that delivers precise protection, durable mounting, and compatibility with Eaton’s panel ecosystems. It’s the smart choice for ensuring safe, reliable power distribution across your residential, commercial, and light industrial electrical infrastructure.