Square D JJA36250U53X Molded Case Circuit Breaker – 3 Pole – 250A – 600V – I-Line Style Plug-In – Solid State – MicroLogic 5.2E LSI Protection

The Square D JJA36250U53X PowerPact J-Frame molded case circuit breaker is designed to provide advanced electronic protection for commercial and industrial power distribution systems. Equipped with a MicroLogic 5.2E solid-state trip unit, this breaker delivers Long-Time, Short-Time, and Instantaneous (LSI) protection while offering energy metering capabilities for enhanced system monitoring. Its I-Line style plug-in construction allows quick installation and removal in compatible I-Line panelboards and switchboards. Rated at 250A and 600V, the JJA36250U53X provides a high interrupting capacity of 65kA at 480VAC and is ideal for demanding distribution applications requiring reliable fault protection and performance.

Voltage and Current Ratings

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

Interrupting Rating

• 65kA at 480VAC
• 25kA at 600VAC
• High Interrupting Capacity

Trip Unit and Protection

• Protection Type:
  • Overload Protection
  • Short-Circuit Protection
• Trip Unit Technology: Solid State Electronic
• Trip Unit: MicroLogic 5.2E
• Trip Functions:
  • Long-Time (L)
  • Short-Time (S)
  • Instantaneous (I)
• Energy Metering Capability
• Non-Interchangeable Trip Unit

Configuration and Mounting

• Poles: 3 Pole
• Frame Type: J-Frame
• Connection Type: I-Line Style Plug-In
• Mounting Mode: I-Line Construction
• ABC Phase Connection
• Suitable for Power Distribution Applications
• Control Type: Toggle

Physical Specifications

• Weight: 5.29 lbs

Electrical Connections

• Line Connection: I-Line Termination
• Load Connection: Mechanical Lugs

Standards and Certifications

• UL Listed
• CSA Approved
• CE Marked
• NOM Certified

Features

• PowerPact J-Frame molded case circuit breaker
• MicroLogic 5.2E electronic trip unit with energy metering
• Long-Time, Short-Time, and Instantaneous protection functions
• High interrupting capacity for demanding applications
• Dual-break rotating contacts reduce peak fault current
• Integral push-to-trip button for manual testing
• I-Line plug-in design for simplified installation and maintenance
• Solid-state electronic protection technology
• Designed for commercial and industrial power distribution systems
• 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.