Square D MJL36350 PowerPact M-Frame MCCB – 3 Pole – 350A – 600V – Thermal Magnetic – Molded Case Circuit Breaker

The Square D MJL36350 is a PowerPact M-Frame molded case circuit breaker designed for medium-to-high capacity industrial power distribution. It provides reliable thermal-magnetic protection with electronic enhancements (ET 1.0 type) for overload and short-circuit conditions. Built for switchboards and distribution systems, it delivers strong interrupting performance and dependable operation in demanding electrical environments.

Electrical Ratings

• Frame / Rated Current: 350 A
• Voltage Rating: 600 V AC (50/60 Hz)
• Phase: 3 Phase
• Poles: 3 Pole
• Interrupting Capacity (UL/CSA/NOM):
  • 100 kA @ 240 V AC
  • 65 kA @ 480 V AC
  • 25 kA @ 600 V AC
• IEC Ratings:
  • 50 kA @ 415 V AC
  • 65 kA @ 240 V AC
• Continuous Current Rating: 80%
• Utilization: Industrial distribution systems

Protection and Trip Functions

• Trip Type: Thermal magnetic with electronic enhancement (ET 1.0)
• Protection Functions:
  • Long-time overload protection
  • Instantaneous short-circuit protection
• Trip Adjustability: 700 to 3500 A range (system configured)
• Trip Class: Non-interchangeable trip unit
• Operation: Manual operating handle

Configuration and Function

• Device Type: Molded Case Circuit Breaker (MCCB)
• Series: PowerPact M-Frame (MJ Model)
• Mounting Type: Unit mount
• Terminal Type: Line and load lugs
• Electrical Connection: Lug terminals (Al/Cu compatible)
• Application Type: Power distribution and feeder protection
• Category: Non-interchangeable trip electronic circuit breaker

Mechanical and Physical Characteristics

• Dimensions: 8.27 in (W) × 8.05 in (D) × 12.86 in (H)
• Wire Range: (3) 3/0 AWG to 500 kcmil (Cu/Al)
• Heavy-duty industrial frame construction
• Designed for switchboards and panelboards
• Operating Temperature Range: -13 °F to 158 °F (-25 °C to 70 °C approx.)
• Robust mechanical switching mechanism

Standards and Compliance

• UL Listed
• CSA Certified
• IEC 60947-2 compliant
• NEMA compliant
• NOM approved
• CE marked
• RoHS / REACh compliant
• Manufacturer: Square D / Schneider Electric
• Series: PowerPact M-Frame

Features

• High-performance 350A MCCB for industrial systems
• Very high interrupting capacity up to 100 kA @ 240V
• Thermal magnetic protection with electronic ET 1.0 support
• Designed for heavy-duty feeder and distribution applications
• Strong fault-current withstand capability
• Lug-type line and load terminals for secure connections
• Suitable for switchboards and industrial power systems

Returns are easy

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

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