Square D | JDL36250U31X | Circuit Breaker | 250A | 3-Pole | 600V

Meet the Square D JDL36250U31X Circuit Breaker — a purpose-built, high-current protection solution designed for demanding electrical environments. With a 250 A rating and 3-pole configuration, this breaker delivers reliable overload protection for feeders and distribution circuits up to 600 V, ensuring equipment and personnel stay safe during faults and surges.

Key specifications

• Amperage: 250 A
• Poles: 3-Pole
• Voltage rating: 600 V

Why this Square D breaker stands out

Designed for maintenance, retrofit, and replacement projects where exact specs matter, the JDL36250U31X ensures a precise fit in legacy Square D panels and distribution gear. Its 3-pole construction provides synchronized tripping across all phases, improving fault isolation and reducing the risk of arc flash or equipment damage. Use this unit when your system requires the exact part reference to maintain safety, performance, and compliance.

Ideal use cases

• Maintenance on aging Square D panels where the original breaker must be replaced with an exact spec match
• Retrofit projects that demand the same amperage, pole count, and voltage to preserve protective coordination
• Replacements in 3-phase circuits powering motors, feeders, or critical infrastructure up to 250 A
• Repairs in manufacturing, data centers, or facilities where downtime is minimized by using a known, compatible part

Compatibility and installation considerations

Ensure you’re selecting the correct part by using the part number JDL36250U31X as the primary compatibility reference. Before ordering, confirm fit and ratings for your specific panel or distribution equipment. This approach minimizes mismatches and ensures proper tripping characteristics and enclosure fit.

Practical guidance for best results

• Document the exact panel model and bus configuration to verify suitability with this 3-pole, 250 A, 600 V breaker.
• Plan for routine inspection of terminals and mounting hardware during installation to maintain long-term reliability.
• Store spare units for critical loads to reduce downtime in maintenance windows and outages.