Westinghouse E3090 - 90A, 3-Pole, Circuit Breaker

The Westinghouse E3090 90A 3-Pole Circuit Breaker is a purpose-built solution for dependable overcurrent protection in today’s three-phase electrical systems. With a 90-amp rating and a true 3-pole design, this breaker protects panelboards, switchboards, and control panels across a range of industrial, commercial, and OEM applications.

• 90A current rating precisely sized for feeders and motor circuits, helping prevent damage from overloads while minimizing unnecessary trips.
• 3-Pole design delivers synchronized protection across all three phases, simplifying wiring and trip coordination in motor control centers (MCCs) and distribution panels.
• Versatile installation suitable for panelboards, switchboards, and control panels in demanding environments, including OEM assemblies where reliability is critical.
• Reliable overcurrent protection interrupts fault currents to safeguard wiring, motors, and equipment, contributing to enhanced safety and uptime in distribution networks.
• Rugged, field-ready construction designed to withstand the rigors of industrial and commercial settings, maintaining performance where it matters most.

Ideal use cases

• Motor control centers and large three-phase motor feeds in manufacturing lines requiring coordinated protection across all phases.
• Feeder circuits in commercial panelboards for HVAC, pumps, and critical building systems needing reliable three-phase protection.
• OEM panel assemblies where a trusted, standard 3-pole breaker simplifies integration and supports long-term serviceability.

Why choose the Westinghouse E3090? It combines a straightforward 3-pole architecture with a robust 90A rating to deliver consistent, predictable interruption of fault currents. This makes it easier to coordinate with other protective devices in your electrical distribution scheme, reduce nuisance trips, and protect both people and equipment in high-demand environments.

For engineers, electricians, and project managers responsible for industrial and commercial electrical systems, the Westinghouse E3090 90A 3-Pole Circuit Breaker offers a reliable, configurable solution that helps keep panelboards and motor control centers operating smoothly. Add it to your distribution strategy to enhance protection, simplify maintenance, and support safer, more efficient electrical infrastructure.