Square D PGA36120 - 1200 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

The Square D PGA36120 is a robust 3-pole plug-in molded case circuit breaker designed to protect your panelboards and load centers from overcurrent and short circuits. With a 1200 A rating at 600 V, this breaker is built to handle demanding, high-current applications while delivering dependable, repeatable protection in both new installations and reliable replacements.

Why this breaker stands out

• Fast plug-in connection: Simplifies installation and rapid replacement, reducing panel downtime and service interruptions.
• Thermal-magnetic trip unit: A thermal element detects overloads for stable, predictable protection, while an instantaneous magnetic trip responds to short circuits, helping to minimize damage and downtime.
• Three-pole configuration: Ideal for balanced three-phase systems found in commercial and light industrial environments, ensuring coordinated protection across all phases.
• High-current capability: 1200 A rating supports larger branch circuits and higher load demands without compromising safety.
• 600 V protection: Suitable for a wide range of commercial and industrial electrical systems, delivering reliable performance under typical operating voltages.
• Durable, molded-case construction: Designed for longevity in challenging panel installations and frequent service scenarios.
• OEM compatibility: Specifically designed to be compatible with matching OEM load centers and panelboards for streamlined upgrades and replacements.
• Versatile applications: Approved for residential, commercial, and light industrial settings where dependable branch circuit protection is essential.

Practical use cases

• Upgrading existing panelboards to accommodate higher loads or three-phase distribution in commercial spaces.
• Replacing aging or failing breakers in service panels with a high-capacity, plug-in solution that minimizes downtime.
• Installing in new commercial or light-industrial projects where reliable short-circuit protection and quick serviceability matter.

Technical snapshot

• Manufacturer: Square D
• Part number: PGA36120
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 1200 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Choose the PGA36120 when you need a reliable, high-capacity plug-in breaker that combines rapid installation with precise protection. It’s engineered to work in tandem with compatible Square D panelboards and load centers, delivering consistent performance across a range of commercial and industrial electrical systems.