Square D HJA36100U44X 100 Amp 3-Pole Molded Case Circuit Breaker – I-Line Plug-In – 600V AC

The Schneider Electric Square D PowerPact HJA36100U44X is a 100 Amp, 3-pole molded case circuit breaker designed for advanced industrial power distribution systems requiring high fault protection and selectivity. Built on the HJA frame, it features solid-state electronic protection with LSIG (Long-Time, Short-Time, Instantaneous, Ground Fault) functionality.

It is engineered for I-Line plug-in mounting and supports reverse-fed applications, making it suitable for critical electrical infrastructure and high-performance panelboards.

Electrical Ratings

• Current Rating: 100 Amps
• Voltage Rating: 600 Volts AC
• Phase: 3-Phase (ABC connection)
• Interrupting Capacity: 65 kA @ 480V AC
• Frame Type: HJA Frame (High interrupting capacity variant)
• Application Category: Molded Case Circuit Breaker (MCCB)
• Current Limiting: Yes

Breaker & Protection Features

• Breaker Type: MCCB (Molded Case Circuit Breaker)
• Number of Poles: 3-Pole
• Trip Unit Technology: Solid State electronic (Micrologic ammeter 6.2A type)
• Trip Functions: LSIG (Long-Time, Short-Time, Instantaneous, Ground Fault)
• Protection Type: Advanced electronic protection with ground fault
• Trip Unit: Non-interchangeable
• Control Type: Toggle mechanism

Mounting & Connection

• Connection Type: I-Line Style Plug-In
• Installation Type: Plug-in breaker for PowerPact panelboards
• Electrical Connection: Line – I-Line connection / Load – lugs
• Compatibility: Square D PowerPact systems
• Reverse Feed Compatible: Yes
• Application Flexibility: Can be used in 2-pole configurations where applicable

Wiring & Termination

• Terminal Type: Line and load lug terminals
• Wire Size Range: Industrial copper/aluminum conductors (application dependent)
• Wiring Style: I-Line plug-in configuration

Physical Specifications

• Height: 3.39 in
• Width: 4.09 in
• Depth: 6.42 in
• Weight: 4.85 lb

Certifications & Standards

• UL Listed
• CSA Approved
• Designed for industrial-grade electrical systems
• Complies with international MCCB and ground fault protection standards
• Suitable for high fault current and critical applications

Additional Features

• LSIG protection including ground fault detection
• High interrupting capacity (65kA @ 480V)
• Current limiting design for enhanced system safety
• Solid-state electronic trip system for precision protection
• I-Line plug-in design for fast installation
• Suitable for reverse-fed applications
• Designed for critical industrial and commercial distribution systems

Manufacturer Information

• Manufacturer: Schneider Electric
• Brand: Square D
• Series: PowerPact HJA Frame
• Model: HJA36100U44X

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

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