Square D LA361501021 150A 3P 600V Circuit Breaker | AmpState

Meet the Square D LA361501021 — a circuit breaker designed to protect panelboards, load centers, and electrical distribution networks with precision. This 150 A, 3-pole, 600 V device is built to perform reliably in demanding commercial and industrial environments where dependable protection matters.

Whether you’re planning a retrofit or stocking spare parts for maintenance, keeping the exact part number consistent simplifies ordering and minimizes downtime. The LA361501021 fits seamlessly into established Square D installations, ensuring compatibility across replacements and long-term procurement stability.

Key specifications and benefits

• Amperage: 150 A
• Poles: 3 (three-pole) for three-phase circuits
• Voltage rating: 600 V
• Intended use: circuit protection in panelboards, load centers, and electrical distribution
• Planning and maintenance: ideal for retrofit work and maintenance scheduling when a consistent part number is required

Why choose this Square D breaker?

As part of Square D’s trusted protection lineup, the LA361501021 delivers reliable interruption performance and straightforward replacement in existing installations. For facilities that rely on stable part-number availability, this breaker offers procurement continuity and reduces the risk of compatibility issues during upgrades or repairs.

Who it’s for and practical use cases

• Electrical contractors performing panel upgrades, service work, or new installations in commercial or industrial settings
• Maintenance teams stocking critical spares to minimize downtime
• Facility managers coordinating retrofit projects where part-number consistency matters

Use cases include retrofits requiring a 150 A, 3-pole, 600 V protection device, maintenance planning with a reliable, consistent part number, and safeguarding 3-phase distribution in panelboards and load centers.

Availability and support

AmpState offers the LA361501021 for purchase, with expert guidance to help confirm fit and compatibility. If you need help matching a part number or verifying compatibility, message us and we’ll assist you in confirming the right fit.