Square D PGP36100U31A Circuit Breaker, 1000A, 3-Pole, 600V

Meet the Square D PGP36100U31A, a rugged circuit breaker crafted for industrial electrical service, maintenance, and replacement projects. With a 1000 A rating across 3 poles and a 600 V operating range, this unit delivers dependable protection for demanding three‑phase power systems.

Compatibility starts with the part number. Use PGP36100U31A to confirm fit for your application, panel type, and electrical requirements before installation. If you’re unsure about matching a part number to your equipment, send us a message and we’ll help verify compatibility.

Why this 3‑pole, 600 V breaker stands out

• High-current protection for large feeders and motors—1000 A as the primary protection device in robust industrial workflows.
• Three-pole design tailored for balanced, synchronized protection in 3‑phase systems, reducing risk of uneven faults.
• Durable, field-replaceable solution that integrates smoothly with existing Square D installations and service equipment in heavy‑duty environments.
• Clear path to replacement or upgrade projects in factory settings, data centers, and large facility power distribution where reliability matters most.
• Guided compatibility checks: verify fit by part number and application requirements to ensure safe, code‑compliant operation.

Ideal use cases

Perfect for large industrial panels, service entrances, and main distribution feeds where a 1000 A, 3‑pole breaker is required to safeguard critical loads and motor circuits across 600 V systems.

Practical guidance for installation & maintenance

• Keep the part number (PGP36100U31A) handy to match against your panel and bus arrangement.
• Before installation, confirm panel compatibility and circuit characteristics to prevent incompatibility issues.
• Follow standard lockout/tagout procedures and refer to enclosure guidelines during replacement or servicing.