Square D PXF36600 600A 3P MCCB – Bolt-On Mount – 600V

The Square D PXF36600 is a molded case circuit breaker (MCCB) built for reliable protection in industrial and commercial electrical distribution systems. It features a 600 Amp electronic non-interchangeable trip unit with LSI protection functions, delivering long-time, short-time, and instantaneous fault protection. Designed on the rugged PXF frame platform, this breaker ensures dependable performance under high fault current conditions. With a 3-pole configuration and bolt-on mounting design, it provides secure installation and stable operation in switchgear and panelboard applications.

Product Specification

• Manufacturer: Square D
• Model: PXF36600
• Frame Type: PXF
• Breaker Type: Molded Case Circuit Breaker (MCCB)
• Amperage: 600A
• Poles: 3 Pole
• Mounting Type: Bolt-On (Panel Mount)
• Trip Unit: Electronic Non-interchangeable
• Trip Functions: LSI (Long-time, Short-time, Instantaneous)
• Sensor Size: 1200 Amp
• Rating Plug: ARP050 Installed (Standard)
• Terminals: Without Terminals (Standard)
• Warranty: 1 Year In-house Warranty

Technical Specification

• Interrupting Capacity:
  • 125 kA @ 240 VAC
  • 100 kA @ 480 VAC
  • 65 kA @ 600 VAC
• Protection System: Electronic microprocessor-based LSI trip unit
• Frame Construction: Heavy-duty PXF industrial frame
• Application Type: Industrial power distribution and feeder protection
• Operational Reliability: Designed for high fault-level electrical systems

Voltage and Ratings

• Maximum Voltage Rating: 600V AC
• Operating Voltage Ratings:
  • 240 VAC – 125 kA interrupting capacity
  • 480 VAC – 100 kA interrupting capacity
  • 600 VAC – 65 kA interrupting capacity
• Rated Current: 600A at 40°C ambient temperature
• Frequency: 50/60 Hz systems

Product Data

• Frame Series: PXF Series
• Sensor Rating: 1200 Amp
• Pole Configuration: 3 Pole
• Connection Type: Bolt-On
• Trip Technology: Electronic LSI protection system
• Rating Plug: ARP050 included (standard configuration)
• Terminal Configuration: No terminals supplied (standard)
• Application: Industrial feeders, distribution panels, and commercial power systems
• Installation Flexibility: Accessories can be installed prior to shipment upon request

Important Note

This product image represents a base model and is for identification purposes only. Accessories can be installed at no additional cost when ordered together; customers should provide configuration details during checkout. The breaker includes a 1-year in-house warranty covering repair, parts, and labor under normal use conditions, excluding damage caused by misuse, improper handling, or normal wear over time.

Returns are easy

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

FREE Shipping on orders over $149.

My Circuit Breakers offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

Same Day Shipping

We strive to ship out your items within one business day.

In rare circumstances, My Circuit Breakers may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

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.