Square D PJA36080CU43AYP Circuit Breaker, 800A, 3-Pole

Square D PJA36080CU43AYP is a rugged circuit breaker designed for industrial electrical service, maintenance, and replacement projects. With an 800 A rating and a 3-pole configuration, it delivers dependable three‑phase protection for demanding environments where reliable power control is essential.

Why this breaker stands out

• 800 A, 3-pole design provides robust overcurrent protection for large feeders and three-phase equipment, safeguarding motors, drives, and distribution systems during heavy-load operations.
• OEM part number PJA36080CU43AYP ensures the correct fit and performance in compatible Square D panels—always verify compatibility by part number and application requirements.
• Industrial-grade reliability from Square D, a trusted name in electrical protection, built to handle the demands of frequent load changes and challenging environments.
• Efficient replacement workflow supports fast, direct-fit installs in compatible assemblies, minimizing downtime on critical systems.
• Versatile use cases — ideal for service entrances, maintenance projects, and replacements in manufacturing facilities, data centers, and other industrial settings that rely on stable, uninterrupted power.
• Support available for compatibility checks — if you’re unsure about fit, send us the part number and your application details and we’ll help confirm compatibility with your system.

Before ordering, confirm this part number aligns with your current installation and application requirements to ensure a precise match with your Square D setup. This breaker is purpose-built for professionals who need rugged, reliable protection in large, three-phase electrical systems.