Square D JDL36250U31X Molded Case Circuit Breaker – 3 Pole – 250A – 600V – Feed-Thru – Solid State – LI Protection

The Square D JDL36250U31X PowerPact molded case circuit breaker is designed to provide advanced overload and short-circuit protection for commercial and industrial power distribution systems. Equipped with a MicroLogic 3.2 electronic trip unit, this breaker delivers Long-Time and Instantaneous (LI) protection with enhanced accuracy and reliability compared to traditional thermal-magnetic breakers. Its feed-thru configuration includes line and load side lug terminals for flexible installation in switchboards, panelboards, and distribution equipment. Rated at 250A and 600V, the JDL36250U31X offers an interrupting capacity of 18kA at 480VAC and is suitable for reverse-fed applications. The breaker can also be used in 2-pole applications, providing installation versatility for a wide range of electrical systems.

Voltage and Current Ratings

• Current Rating: 250 Amps
• Voltage Rating: 600 Volts AC
• Phase: 3 Phase
• Continuous Current Rating: 80%

Interrupting Rating

• 18kA at 480VAC
• Standard Interrupting Capacity

Trip Unit and Protection

• Protection Type:
  • Overload Protection
  • Short-Circuit Protection
• Trip Unit Technology: Electronic, Standard, MicroLogic 3.2
• Trip Functions:
  • Long-Time (L)
  • Instantaneous (I)
• Non-Interchangeable Trip Unit
• Solid State Protection

Configuration and Mounting

• Poles: 3 Pole
• Frame Type: J Frame
• Connection Type: Feed-Thru
• Mounting Mode: Unit Mount Lug
• Suitable for Reverse-Fed Applications
• Can Be Used for 2-Pole Applications
• Control Type: Toggle

Physical Specifications

• Dimensions (H × W × D): 7.52 × 4.09 × 3.39 Inches
• Weight: 5.29 lbs

Electrical Connections

• Line Connection: Lugs Line
• Load Connection: Lugs Load
• Wire Size Range: AWG 3/0 to 350 kcmil Aluminum/Copper

Standards and Certifications

• CSA Approved
• UL Listed

Features

• PowerPact molded case circuit breaker
• MicroLogic 3.2 electronic trip unit
• Solid-state protection technology
• Long-Time and Instantaneous trip functions
• Feed-thru design with line and load lug terminals
• Suitable for reverse-fed installations
• Can be configured for 2-pole applications
• Provides overload and short-circuit protection
• Non-interchangeable electronic trip unit
• Compact and durable molded case construction
• Designed for commercial and industrial power distribution applications
• Manufactured by Schneider Electric / Square D for long-term reliability and performance

Returns are easy

You may return items within 30 days of delivery for a refund.

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My Circuit Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer). Extended warranties are available upon request.