Square D PJA PowerPacT P-Frame I-Line Circuit Breaker, 3-Pole, 600VAC

Square D PJA PowerPacT P-Frame I-Line Circuit Breaker, 3-Pole, 600VAC

The Square D PJA PowerPacT P-Frame I-Line circuit breaker is engineered to protect electrical distribution systems from damage caused by overloads and short circuits. This 3-pole, 600VAC breaker features the ET1.0I electronic long-time trip unit, an 80%-rated I-Line connection, and a 25kA short-circuit rating for demanding commercial and industrial panelboards. This model is offered in Motor FLA ratings from 1000A up to 1200A, allowing the correct breaker to be matched to the connected motor load while sharing the same frame, trip technology, and I-Line mounting platform. Rated to 600 V AC, 50/60 Hz per UL 489 and HACR rated, it is built for dependable overcurrent protection in distribution equipment.

Key Features

• Configuration: 3-pole design for three-phase distribution circuits.
• Motor FLA Range: Available in 1000A and 1200A ratings to match motor load requirements.
• Trip Unit Technology: Electronic, basic ET 1.0I long-time trip unit for reliable overcurrent detection.
• I-Line Connection: I-Line bracket mounting with I-Line line-side connection and load-side lugs for simplified busway installation; accepts 4 x AWG 3/0...500 kcmil aluminum/copper conductors.
• Voltage Rating: 600 V AC, 50/60 Hz per UL 489; rated insulation voltage (Ui) of 750V and rated impulse withstand voltage (Uimp) of 8 kV per IEC 60947-2.
• Short-Circuit Rating: 25 kA at 380/415 V AC and 35 kA at 240 V AC per IEC 60947-2 (Ics).
• Ingress Protection: IP40 degree of protection on the front cover.
• Local Signaling: Integrated green trip indicator for local status verification.
• HACR Rated: Suitable for heating, air conditioning, and refrigeration equipment circuits.

Certifications & Compliance

• UL Listed
• CSA Certified
• NOM Certified
• Complies with IEC 60947-2
• Meets NEMA and NOM-003-SCFI-2000 standards
• CE Quality Label

Technical Specifications

• Warranty Period: 18 months
• Poles Description: 3P
• Serviceability: Yes
• Removable Battery: YES
• Quality Labels: CE
• Mercury Free: Yes

Typical Applications

• Commercial and Industrial Distribution Panelboards
• I-Line Busway Systems
• Main Panel Disconnect for Control Panels
• HACR-Rated Heating and Cooling Circuits
• Motor Circuit Protection at Matched FLA Ratings
• Renovation and New Construction Electrical Projects

Why Square D?

Square D engineers the PowerPacT P-Frame line for reliable, code-compliant overcurrent protection in demanding commercial and industrial environments. Backed by UL, CSA, and NOM certifications plus IEC 60947-2 compliance and an 18-month warranty, this circuit breaker delivers dependable performance across its full range of Motor FLA ratings for distribution equipment and control panel applications.