Eaton CH290ST - 90 A, 240 V, 2-Pole Plug-In Circuit Breaker | AmpState

The Eaton CH290ST is a 90A, 240V, 2-pole plug-in molded case circuit breaker engineered to safeguard branch circuits within panelboards and loadcenters from overcurrent and short circuits. Its fast plug-in connection enables quick installation and straightforward replacement during panel upgrades or service work, reducing downtime and labor costs.

Key Benefits

• Fast plug-in connection: Simplified installation and rapid replacement when updating panels or performing service work.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection as electrical load varies, helping prevent nuisance trips and ensuring reliable circuit safety.
• OEM-compatible design: Built to work with matching Eaton OEM loadcenters and panelboards for a safe, seamless fit and reliable protection.
• Versatile application: Suitable for residential, commercial, and light industrial electrical systems needing dependable branch circuit protection.

Technical Specifications

• Manufacturer: Eaton
• Part Number: CH290ST
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 90A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal Use Cases

• Residential panelboards and loadcenters needing reliable 90A protection for branch circuits.
• Small commercial electrical installations where quick installation and easy replacement matter during panel servicing.
• Light industrial panels that require a durable, plug-in solution with precise thermal-magnetic protection.
• Upgrading aging or legacy panelboards to a compatible, modern CH-series breaker family for improved reliability.

Why This Breaker Stands Out

The CH290ST combines a robust thermal-magnetic trip mechanism with a plug-in form factor that minimizes installation time without compromising protection. Its compatibility with matching OEM loadcenters simplifies panel upgrades and reduces the risk of misfits or compatibility issues. For technicians and property owners who value dependable protection with straightforward maintenance, this breaker delivers predictable performance across varying loads and duty cycles.

Practical Tips for Installation and Use

• Pair the CH290ST with Eaton OEM loadcenters and panelboards to ensure full-fit integration and optimal protective coordination.
• Plan replacements during scheduled maintenance to minimize system downtime; the plug-in design facilitates rapid swaps.
• Keep track of amperage requirements for each circuit; the 90A rating is ideal for higher-load branch circuits within residential or light commercial setups.
• regularly verify that a matching, correctly rated breaker is used for each circuit to maintain proper protection and avoid nuisance trips.

Upgrade or outfit your panel with the Eaton CH290ST—90A, 240V, 2-pole plug-in molded case circuit breaker—available from AmpState for dependable, OEM-aligned protection of your electrical system.