Westhinghouse KA3150 - 150A, 3-Pole, Circuit Breaker

Introducing the Westhinghouse KA3150, a rugged 150A, 3-Pole circuit breaker built to protect large electrical systems from overcurrent faults. Designed for reliability in demanding environments, it’s a smart choice for professionals who need consistent, safe control of their three-phase power distribution.

Key advantages at a glance

• Current rating: 150 A—provides strong protection for feeders, motors, and high-load circuits without unnecessary nuisance tripping.
• 3-Pole configuration—ensures simultaneous interruption of all three phases in a three-phase system, improving safety and fault isolation.
• Versatile deployment—ideal for panelboards, switchboards, and control panels in industrial, commercial, and OEM applications.
• Reliable overcurrent protection—designed to help prevent equipment damage, insulation breakdown, and wiring faults in distribution networks.
• Straightforward integration—a practical fit for standard distribution gear and motor control centers, simplifying installation and maintenance.

Why the KA3150 stands out

If your project involves three-phase power, the KA3150’s 3-Pole design aligns with the needs of modern motor control centers and distribution panels. With a 150A rating, it strikes a balance between protecting high-demand equipment and avoiding unnecessary trips in normal operation. This makes it a dependable choice for retrofits, new builds, and OEM assemblies where robust, predictable protection is essential.

Use cases and ideal environments

• Industrial facilities with large motors, conveyors, or processing equipment that require solid phase protection
• Commercial spaces with three-phase distribution needs and centralized control panels
• OEM equipment where standardized 3-pole protection enhances system safety and reliability
• Motor control centers and distribution panels needing reliable, straightforward overcurrent protection

Practical considerations for installation

• Verify that your panelboard or switchboard accepts a 3-Pole KA3150-style circuit breaker for seamless integration
• Plan for proper mounting and bus-bar alignment to ensure secure connections and reliable operation
• Pair with appropriately rated wiring and protective devices to maintain overall system protection and performance

Specifications at a glance

• Current rating: 150A
• Poles: 3-Pole
• Breaker type: Circuit Breaker

For engineers and technicians, the Westhinghouse KA3150 delivers straightforward, dependable overcurrent protection in a compact, easy-to-install package. Whether upgrading an existing panel or deploying new three-phase infrastructure, it provides clear, practical protection that keeps systems running smoothly and safely.