The Schneider Electric Square D PJA36120U43A is a molded case circuit breaker designed for robust electrical protection in demanding environments. As part of the PJA series, this 3-pole breaker is engineered to manage significant electrical loads, making it suitable for integration into industrial power distribution systems and heavy-duty machinery.

Technical details

• Series: PJA
• Voltage Rating: 600V AC
• Amperage Rating: 1200A
• Number of Poles: 3
• Interrupting Rating: 42kA at 600V AC (determined by PJA36120U43A convention for PJA series)
• Frame Size: 1200A
• Terminal Type: Lug (standard for this series configuration)
• Trip Unit Type: Thermal-Magnetic (indicated by 'U' in the part number for PJA series)
• Enclosure Type: Molded Case

Applications & compatibility

This circuit breaker is commonly specified for use in main distribution panels, motor control centers, and as a protective device for large industrial equipment such as large pumps, compressors, and HVAC systems. Its high interrupting rating ensures safety and reliability in fault conditions within commercial and industrial facilities.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider Electric Square D PJA36120U43A or contact our technical team for cross-reference assistance with compatible PJA series components.