Eaton GB2090 90A 2-Pole 240 V Circuit Breaker Potential Transformer

Introducing the Eaton GB2090 90A 2-Pole 240 V Circuit Breaker Potential Transformer—a purpose-built solution engineered for reliable protection and precise electrical monitoring in demanding panel environments. This part, identified by GB2090, delivers a robust 90 A current rating across two poles at 240 V, making it an ideal main or feeder breaker for 240 V circuits in commercial and light industrial applications.

What sets this breaker apart is its built-in potential transformer capability, designed to support accurate voltage and current sensing for metering, monitoring, and protection coordination. In practical terms, the GB2090 enables seamless integration with measurement equipment and protective relays, helping you capture real-time electrical data and respond quickly to abnormal conditions without adding separate sensing hardware.

Key capabilities

• 90 A current rating provides dependable protection for high-demand feeders and critical circuits.
• 2-Pole, 240 V configuration protects and isolates both conductors in typical 240 V electrical networks.
• Potential Transformer interface supports measurement, metering, and relay coordination, aiding visibility and control of the power system.
• Compact, panel-friendly form designed for straightforward installation in standard electrical panels where space and reliability matter.

Ideal use cases

• Main disconnect or main feeder protection in 240 V panelboards for commercial spaces or light industrial facilities.
• Protection of critical machinery branches where monitoring of voltage and current improves maintenance planning and fault diagnosis.
• Electrical system configurations that require integrated sensing to feed data into metering or control systems without additional sensors.

Why choose the GB2090 over standard breakers

Beyond simple interruption, the GB2090 combines traditional overcurrent protection with potential-transformer-based measurement capabilities. This integration reduces the need for separate sensing devices, simplifies wiring schemes, and provides richer electrical data to support proactive maintenance and faster fault resolution—helping you keep critical operations up and running.

Product details at a glance: Eaton GB2090, 90 A, 2-Pole, 240 V, Circuit Breaker Potential Transformer. For installation, verify compatibility with your existing Eaton panels and conform to local electrical codes and safety practices. This model is the dependable choice when you need solid protection with added measurement capability for smarter power management.