Square D PLA34120U41 A - 1200 A, 3-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D PLA34120U41A 1200A, 3-pole plug-in molded case circuit breaker—the sturdy choice for reliable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built to keep critical electrical systems running, it blends high-capacity performance with fast, hassle-free installation.

• Fast plug-in connection for quick installation and effortless replacement in existing panelboards and loadcenters, minimizing downtime during maintenance or upgrades.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining thermal overload sensing with instantaneous magnetic response to short circuits, reducing nuisance trips while safeguarding connected equipment.
• OEM-compatible design tailored to match Square D load centers and panelboards, ensuring a secure fit and dependable operation within compatible architectures.
• Heavy-duty amperage and three-pole construction with a 1200A rating and 3-pole configuration to handle larger distribution circuits common in commercial and light industrial environments.
• Versatile application ideal for residential service upgrades, commercial installations, and light industrial facilities needing robust branch-circuit protection.

Why this matters in real-world use: when you’re protecting high-capacity feeders or multi-line panels, a plug-in molded case breaker like the PLA34120U41A reduces installation time, minimizes system downtime, and provides dependable protection against both overloads and short circuits. The thermal-magnetic mechanism means you get precise tripping behavior—only unleash full protection when it’s truly needed.

Technical highlights at a glance

• Manufacturer: Square D
• Part number: PLA34120U41A
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 1200A
• Poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

This breaker is an excellent match for professionals designing or upgrading electrical distributions in panelboards and loadcenters. Whether you’re protecting critical commercial equipment, large residential feeders, or light-industrial circuits, the PLA34120U41A delivers the reliability and compatibility you need. Add it to your project to ensure durable, code-compliant protection that’s ready for service and easy to replace when the time comes.