Square D JDL36250U53X - 250 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Square D JDL36250U53X — a rugged, high-capacity 3-pole molded case circuit breaker engineered to safeguard your most important electrical systems. With a 250 A rating and a 600 V rating, this unit delivers dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers, keeping circuits and equipment safer and more reliable.

Why the JDL36250U53X stands out

• Compact molded-case design minimizes footprint in crowded panels, freeing up space for future add-ons without sacrificing protection.
• Thermal-magnetic trip unit provides stable, repeatable protection performance across a range of temperatures and fault conditions, helping prevent nuisance trips and ensuring consistent protection.
• 3-pole configuration ideal for 3-phase systems, common in commercial and light industrial lighting, equipment, and distribution networks.
• 600 V rating supports medium-voltage residential, commercial, and light industrial applications while maintaining robust protection margins.
• OEM-compatible designed to work with matching Square D panelboards and load centers for straightforward, plug‑and‑play installation.

Who this is for

This 250 A, 600 V, 3-pole MCCB is well-suited for residential panel upgrades, commercial electrical rooms, and light industrial distributions where reliable protection is essential. If you’re consolidating protection for multiple feeders or upgrading legacy equipment, the JDL36250U53X offers a precise, dependable solution that aligns with standard Square D panel ecosystems.

What problems it solves

• Prevents damage from overcurrent and short circuits in large, multi-wire panel configurations.
• Reduces downtime by delivering predictable tripping behavior, minimizing unexpected power interruptions.
• Preserves panel organization by fitting compactly into space-constrained enclosures.
• Ensures compatibility with existing OEM hardware, helping maintain system integrity during upgrades or expansions.

Technical specifications

• Manufacturer: Square D
• Part Number: JDL36250U53X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 250 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Practical use and installation tips

• Verify that the JDL36250U53X is compatible with your OEM load center or panelboard before installation to ensure a seamless fit and optimal performance.
• Install in a well-ventilated enclosure and follow standard electrical safety procedures when handling high-amperage devices.
• Label circuits clearly to reflect the protection provided by this 3-pole breaker, aiding future troubleshooting and maintenance.
• For upgrades, plan feeder protection staff with coordinated breaker sizing to align with downstream protection and system load requirements.