Square D PKA36080U31 A - 800 A, 3-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D PKA36080U31A—a rugged 800A, 3-pole plug-in molded case circuit breaker built to safeguard panelboards and load centers from branch circuit overcurrent and short-circuit events. This high-capacity device is designed for reliability in demanding electrical environments where uptime matters as much as protection.

• Fast plug-in connection for quick installation and straightforward field replacements, minimizing downtime during maintenance or upgrades.
• Thermal-magnetic trip unit delivers stable, repeatable protection, automatically adjusting to normal operating conditions while responding swiftly to overloads and shorts.
• OEM-compatible with matching Square D load centers and panelboards, ensuring seamless integration and dependable performance.
• Three-pole design provides balanced protection across three phase conductors, ideal for 120/208/277V systems common in commercial and light industrial applications.
• Versatile protection suitable for residential, commercial, and light industrial circuits that demand high-current reliability.

Why this 800A, 3-pole plug-in breaker stands out

In environments where a single fault can affect an entire distribution or critical equipment, the Square D PKA36080U31A offers a robust line of defense. Its plug-in style reduces installation time and minimizes wiring errors, while the thermal-magnetic trip unit balances sensitivity and selectivity to prevent nuisance trips on normal load fluctuations. The 800A rating makes it a strong choice for high-demand branch circuits, without compromising protection or safety.

Key specifications at a glance

• Manufacturer: Square D
• Part Number: PKA36080U31A
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 800A
• Number of Poles: 3
• Mounting Style: Plug-in
• Applications: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

Choose the Square D PKA36080U31A for high-current panels in commercial buildings, distribution centers, or light-industrial facilities where reliable protection and fast serviceability matter. It’s equally suitable for large residential electrical systems with demanding loads that require robust, repeatable trip performance and quick replacement when service is needed.

Practical tips for installation and care

• Verify compatibility with your specific Square D panelboard or load center before installation to ensure optimal fit and performance.
• Use the plug-in mounting according to manufacturer guidelines to achieve secure seating and reliable electrical contact.
• Maintain a small inventory of PKA36080U31A units for rapid replacement during planned maintenance or unexpected outages.