Square D JDA36250U44X Molded Case Circuit Breaker – 3 Pole – 250A – 600V – I-Line Style Plug-In – Solid State – LSIG Protection

The Square D JDA36250U44X PowerPact J-Frame molded case circuit breaker is designed for advanced power distribution and circuit protection applications in commercial and industrial systems. Equipped with a MicroLogic 6.2A electronic trip unit, this breaker provides Long-Time, Short-Time, Instantaneous, and Ground Fault (LSIG) protection for enhanced system coordination and fault detection. Its I-Line Style Plug-In design allows for quick installation and servicing in compatible panelboards and switchboards. Rated at 250A and 600V, the breaker offers an interrupting capacity of 18kA at 480V and is suitable for reverse connection applications.

Voltage and Current Ratings

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

Interrupting Rating

• 18kA at 480VAC
• Standard Interrupting Capacity

Trip Unit and Protection

• Protection Type: Short-Circuit and Overload Protection
• Trip Unit Technology: Electronic, Ammeter, MicroLogic 6.2A
• Trip Functions:
  • Long-Time (L)
  • Short-Time (S)
  • Instantaneous (I)
  • Ground Fault (G)
• Non-Interchangeable Trip Unit
• Solid State Electronic Protection

Configuration and Mounting

• Poles: 3 Pole
• Frame Type: JDA / J Frame
• Connection Type: I-Line Style Plug-In
• Mounting Mode: I-Line Bracket
• Phase Connection: ABC
• Suitable for Reverse Connection Applications

Physical Specifications

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

Electrical Connections

• Line Connection: I-Line Connection
• Load Connection: Mechanical Lugs
• Wire Size Range: AWG 3/0 to 350 kcmil Aluminum/Copper
• Continuous Current Rating: 80%
• Magnetic Hold Current: 1250 Amps
• Control Type: Toggle

Standards and Certifications

• CSA Approved
• UL Listed
• IEC Compliant
• RoHS Compliant

Features

• PowerPact J-Frame molded case circuit breaker
• MicroLogic 6.2A electronic trip unit with integrated ammeter
• LSIG protection for advanced fault detection and coordination
• Solid-state electronic protection technology
• I-Line plug-in mounting for fast installation and replacement
• Suitable for commercial, industrial, and power distribution systems
• Reverse connection capable
• Reliable overload, short-circuit, instantaneous, and ground-fault protection
• Compact, durable Schneider Electric / Square D construction
• Designed for demanding electrical distribution applications.

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.