Square D | PGA36120U44A | Circuit Breaker | 1200A | 3-Pole | 600V

The Square D PGA36120U44A circuit breaker is a purpose-built, OEM-grade solution for demanding 3-phase power systems. With a robust 1200 A rating, a 3-pole configuration, and a 600 V operating ceiling, this unit is engineered to protect high-capacity feeders and critical equipment in industrial environments.

Direct-fit reliability for Square D installations

• Part number: PGA36120U44A — the most reliable reference for compatibility with Square D panels and assemblies.
• Amperage: 1200 A continuous current rating, designed to handle substantial load without nuisance tripping.
• Poles: 3-Pole configuration for three-phase protection and balanced system isolation.
• Voltage: 600 V maximum, suitable for medium-voltage industrial applications.
• 用途: Ideal for maintenance, retrofit, and replacement projects where exact specs are required.

Unique value in every retrofit

Why settle for a generic substitute when your panel expects an exact match? This PGA36120U44A breaker preserves the original footprint, mounting pattern, and terminal arrangement, which minimizes installation surprises and downtime. By sticking with the official part number, you ensure you’re getting a product that aligns with Square D’s design standards and performance characteristics.

Ideal use cases and scenarios

• Maintenance on aging square-d panel boards that require 3-pole, 600 V protection for heavy feeders.
• Retrofits in facilities upgrading to higher-capacity distribution without changing surrounding hardware.
• Replacement in service and electrical distribution panels where exact spec matching is critical for continued safety and reliability.

Compatibility and installation guidance

Notes to ensure a smooth purchase: confirm fit and ratings before ordering. The PGA36120U44A part number is your best reference for compatibility with your Square D equipment. If you’re replacing a worn or failed unit, verify that your panel’s model and labeling align with a 3-pole, 600 V, 1200 A configuration before proceeding. Always follow proper safety procedures and local electrical codes during installation and commissioning.

Practical tips for maximum reliability

• Keep a spare PGA36120U44A on hand for planned maintenance to reduce downtime during outages.
• Document the exact panel and position where the breaker is installed to simplify future replacements.
• During installation, ensure clean, secure connections to prevent overheating and ensure consistent trip performance.