Square D PGF36100U31A Circuit Breaker, 1000A, 3-Pole, 600V

Introducing the Square D PGF36100U31A circuit breaker—the rugged, three‑pole solution engineered for demanding industrial electrical service, maintenance, and replacement projects. With a 1000 A rating and a 600 V operating voltage, this unit is built to protect high‑current, three‑phase systems where reliability matters most.

Key specifications at a glance

• Manufacturer: Square D
• Part number: PGF36100U31A
• Amperage rating: 1000 A
• Poles: 3
• Voltage rating: 600 V
• Application: Industrial electrical service, maintenance, and replacement

What makes this model stand out

• Exact-fit compatibility is ensured by the precise part number PGF36100U31A, making it a reliable choice for Square D panels and enclosures designed for PGF‑series breakers.
• Three‑pole design provides synchronized protection for three‑phase systems, reducing the risk of unbalanced loads and ensuring coordinated shutdowns during faults.
• High-current capability supports demanding industrial feeders and equipment, helping keep critical processes online and minimizing unscheduled downtime.
• Durable, field‑ready construction is built to handle the vibration, temperature swings, and continuous operation common in industrial environments.
• Simple compatibility verification—use the part number and your application requirements to confirm fit. If you’re unsure, our team can help match the part number to your equipment and ensure proper integration.

Who benefits most

This circuit breaker is ideal for facilities with three‑phase power that require robust protection and straightforward replacement. It’s well suited for manufacturing lines, processing plants, and other industrial settings where reliability and rapid serviceability are priorities.

Practical usage scenarios

When upgrading or replacing aging protection, the PGF36100U31A delivers a proven replacement option that aligns with Square D’s modular approach. Use it as a main service disconnect or as a protective device for large three‑phase feeders and motor circuits in compliant environments. Remember to verify fit by part number and system requirements before installation.

If you need help confirming compatibility, simply reach out—we’re ready to assist in matching the part number to your exact application and ensure a seamless fit within your panel or MCC setup.