Square D PGA36120U31A PowerPact P-Frame MCCB – 3 Pole – 1200A – I-Line Plug-On – Micrologic 3.0 – Electronic Molded Case Circuit Breaker

The Square D PGA36120U31A is a high-capacity PowerPact P-Frame molded case circuit breaker designed for industrial power distribution systems requiring reliable high-current protection. It is built for I-Line panelboards and switchboards, offering plug-on installation and electronic protection via a Micrologic 3.0 trip unit. This breaker provides long-time and instantaneous protection for heavy-duty electrical networks.

Electrical Ratings

• Frame / Rated Current: 1200 A
• Maximum Voltage Rating: 600 V AC
• Voltage Ratings:
  • 240 / 480 / 600 VAC (50/60 Hz)
  • 480 VAC Star / 277 VAC
  • 600 VAC Star / 347 VAC
  • 240 / 415 VAC (IEC)
• Phase: 3 Phase
• Poles: 3 Pole
• Interrupting Capacity:
  • 65 kA @ 240 VAC
  • 35 kA @ 480 VAC
  • 18 kA @ 600 VAC
  • 50 kA @ 240 VAC (IEC)
  • 35 kA @ 415 VAC (IEC)
• Application: Power distribution / switchboards / panelboards

Protection and Trip Functions

• Trip Technology: Electronic
• Trip Unit: Micrologic 3.0
• Trip Functions:
  • Long-Time Overload Protection
  • Instantaneous Short-Circuit Protection
• Protection Type: Molded case switch with electronic trip system
• Trip Behavior: Adjustable coordination via electronic settings
• Control Type: Toggle operating mechanism

Configuration and Function

• Device Type: Electronic Molded Case Circuit Breaker (MCCB)
• Series: PowerPact P-Frame (PGA Series)
• Mounting Type: I-Line plug-on system
• Electrical Connection: I-Line line connection / lug load side
• Frame Type: P-Frame
• Phase Configuration: ABC
• Application: I-Line panelboards and switchboards

Mechanical and Physical Characteristics

• Dimensions: 8.27 in (W) × 8.05 in (D) × 16.16 in (H)
• Terminal Wire Range: (4) 3/0 AWG to 500 kcmil (Al/Cu)
• Heavy-duty industrial enclosure design
• Designed for large feeder and distribution circuits
• Ambient Temperature Rated for industrial environments
• Plug-in construction for fast installation and maintenance

Standards and Certifications

• UL Listed
• CSA Certified
• CE Marked
• NOM compliant (system dependent)
• Manufacturer: Square D / Schneider Electric
• Series: PowerPact P-Frame
• UNSPSC: 39121616

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.