Eaton BAB2090S - 90 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Eaton BAB2090S is a 90A, 240V, 2-pole bolt-on molded case circuit breaker built for dependable branch circuit protection in panelboards and loadcenters. Designed to stand up to vibration and varying electrical demands, this breaker delivers reliable protection where it matters most.

• Rigid bolt-on mounting provides a secure, vibration-resistant bus connection, reducing the risk of loose connections and nuisance trips in demanding environments.
• Thermal-magnetic trip unit delivers stable, repeatable protection against overloads and short circuits with fast, predictable response.
• OEM-compatible design ensures seamless integration with matching OEM loadcenters and panelboards for straightforward replacements or upgrades.
• Versatile application suitable for residential, commercial, and light industrial installations that require dependable branch-circuit protection.

Technical specifications

• Manufacturer: Eaton
• Part Number: BAB2090S
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 90 A
• Voltage Rating: 240 V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

What problems does it solve?

When you need reliable, long-cycle protection for electrical panels, the BAB2090S offers predictable trip curves that minimize nuisance trips and safeguard downstream wiring and devices. The bolt-on design simplifies retrofits and upgrades in existing panelboards, while the 2-pole configuration ensures both hot lines disconnect together for enhanced safety and code compliance.

Ideal use cases

• New installations in light commercial spaces such as small offices, retail storefronts, and service rooms.
• Residential subpanels requiring robust, board-level protection.
• Light industrial feeders that demand steady protection against overloads and short circuits.

Installation and compatibility tips

Pair the BAB2090S with Eaton or compatible OEM loadcenters and panelboards to guarantee full mechanical and electrical compatibility. Confirm conductor sizing and enclosure ratings match the 90 A, 240 V operating conditions. Ensure panelboard spaces are accessible and follow all local electrical codes. Because the unit uses bolt-on mounting, secure installation is essential to maintain a solid bus connection in environments with vibration or movement.

Why choose Eaton and AmpState

As a trusted Eaton solution, the BAB2090S combines precise engineering with practical reliability. AmpState distributes this model to support electricians and facilities managers seeking durable, field-proven protection for branch circuits across residential, commercial, and light industrial applications.