Square D JDL36250CU31X 250A 3-Pole 600 V Circuit Breaker

Meet the Square D JDL36250CU31X, a robust 250 A, 3-pole, 600 V circuit breaker engineered for demanding industrial power distribution. Built to protect 3-phase circuits in switchgear, motor control centers, and large panelboards, this unit delivers reliable overcurrent protection while standing up to tough operating conditions. With the JDL36250CU31X, you get a trusted Square D solution that partners seamlessly with existing Square D installations and spare parts inventories.

• Current rating: 250 A
• Poles: 3
• Voltage rating: 600 V
• Part number: JDL36250CU31X
• Terminals: copper (CU) connections for durable, low-resistance wiring

Why this 3-pole breaker stands out

• Designed for reliable protection of three-phase feeders and motors, ensuring synchronized interruption across all phases to prevent cascading faults.
• CU-terminal construction provides solid, heat-dissipating connections, contributing to long-term performance in high-demand environments.
• Part of the Square D lineup, it’s a practical, exchange-ready choice for replacements and retrofits in existing Square D enclosures.
• 600 V rating makes it suitable for medium-voltage industrial applications where dependable shutoff is essential for safety and uptime.

Ideal applications

• Industrial control panels, motor control centers (MCCs), and large equipment feeders.
• Main and branch circuit protections in 3-phase distribution systems operating up to 600 V.
• Spare or replacement part for established Square D installations to minimize downtime during maintenance or upgrades.

Practical guidance for installation and use

• Verify compatibility with your enclosure, bus configuration, and existing Square D components before installation.
• Follow standard electrical safety practices and the manufacturer’s installation instructions for torque and mounting requirements.
• Use this unit when you need a dedicated 250 A, 3-pole protection solution for 3-phase circuits up to 600 V, especially in systems that benefit from a consistent Square D ecosystem.

From critical data centers to industrial facilities, the Square D JDL36250CU31X delivers dependable, cohesive protection for your 3-phase power distribution. Add it to your cart to ensure you have a precise, compatible replacement or upgrade for your existing Square D setup.