Square D PGA36120U44 A - 1200 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D PGA36120U44A, a high-capacity plug-in molded case circuit breaker engineered for demanding distribution systems. Rated at 1200A and 600V, this 3-pole device delivers reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers, keeping commercial and light industrial environments protected and running smoothly.

Fast, dependable protection you can rely on

• Fast plug-in connection enables quick installation and seamless replacement, minimizing downtime during maintenance or upgrades.
• Thermal-magnetic trip unit provides stable, repeatable protection for both overloads and short circuits, reducing nuisance trips and safeguarding connected equipment.
• 3-pole design supports three-phase systems, ensuring coordinated protection across all phases for balanced performance.
• 600V rating suited for modern commercial and light industrial distribution networks and equipment.
• OEM compatibility is designed to pair with matching Square D panelboards and load centers, simplifying installation, maintenance, and spare-part planning.
• High amperage rating 1200A makes it ideal for main distribution or large-draw branches in robust installations.

Ideal uses and practical scenarios

This breaker excels in large commercial buildings, warehouses, and light industrial facilities where a compact, plug-in MCCB solution is essential. Use it to replace failed or undersized breakers in existing Square D panelboards, or when upgrading a distribution system to support higher loads while preserving full branch-circuit protection. Its design focuses on longevity, ease of maintenance, and reliable response under real-world operating conditions.

Technical snapshot

• Manufacturer: Square D
• Part Number: PGA36120U44A
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 1200A
• Voltage Rating: 600V
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Choose the Square D PGA36120U44A when you need durable, high-capacity protection that integrates seamlessly with your Square D panel ecosystems. It’s designed to deliver dependable performance in real-world conditions, helping protect people, equipment, and processes with precise, reliable trip behavior and straightforward install/install-out workflows.