Square D PGA36120U31 A - 1200 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D PGA36120U31A — a rugged, plug-in molded case circuit breaker engineered to shield your panelboards and loadcenters from overcurrent and short-circuit conditions. With a formidable 1200 A rating and a 600 V capacity, this 3-pole device is built to handle demanding residential, commercial, and light industrial applications.

Designed for fast, downtime-friendly installations, the plug-in connection speeds setup and simplifies future replacements. The thermal-magnetic trip unit delivers stable, repeatable protection across varying temperatures and loads, reducing nuisance trips while guaranteeing rapid response when faults occur.

Why choose the PGA36120U31A

• Fast plug-in connection for quick installation and seamless module replacement, reducing service time and downtime.
• Thermal-magnetic trip unit ensures reliable, predictable protection against overcurrent and short circuits.
• 3-pole configuration supports three-phase power systems, ideal for commercial and light-industrial panels.
• OEM-compatible with matching load centers and panelboards, ensuring proper fit and electrical coordination.
• Rugged molded case construction designed for consistent performance in demanding environments.

Ideal for: engineers and electricians upgrading or expanding panelboards in facilities that require high-current, three-phase protection. It’s a solid choice for service entrances and distribution in mid-to-large electrical installations where dependable branch circuit protection at 1200 A is essential.

Technical snapshot

• Manufacturer: Square D
• Part Number: PGA36120U31A
• 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