Square D

Square D PXF361800 1800A 3-Pole Molded Case Circuit Breaker – Bolt-On Mount – 600VAC

In stock
SKU: PXF361800-NS
$33,999.00
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1 year warranty
30 day returns

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The Square D PXF361800 molded case circuit breaker is a high-capacity power distribution solution engineered for demanding industrial and commercial electrical systems. Designed with a 2000 amp sensor size and electronic non-interchangeable trip unit, this breaker delivers advanced LSI (Long-Time, Short-Time, Instantaneous) protection for enhanced system reliability and equipment safety. Rated at 1800 amperes and supporting up to 600VAC, the breaker provides exceptional interrupting performance for critical applications requiring dependable overcurrent protection. Its bolt-on mounting configuration ensures secure installation, while the included ARP090 rating plug supports accurate trip calibration and operational efficiency.

Product Specifications

  • Manufacturer: Square D
  • Model Number: PXF361800
  • Product Type: Molded Case Circuit Breaker
  • Frame Style: PXF Frame
  • Trip Unit Type: Electronic Non-Interchangeable
  • Trip Functions: LSI (Long-Time, Short-Time, Instantaneous)
  • Sensor Size: 2000 Amp
  • Rated Current: 1800 Ampere
  • Number of Poles: 3 Pole
  • Mounting Type: Bolt-On
  • Standard Lug Type: Without Terminals Standard
  • Rating Plug Installed: ARP090
  • Operating Temperature Rating: 40°C
  • Warranty: One Year

Technical Specifications

  • Electronic trip technology for accurate fault detection
  • Non-interchangeable trip unit design for secure protection settings
  • Advanced LSI protection functions improve coordination and system stability
  • High interrupting capacity suitable for industrial distribution systems
  • Durable molded case construction for long operational life
  • Bolt-on connection design ensures secure and stable installation
  • Suitable for commercial, industrial, and heavy-duty power applications
  • Compatible with high-capacity electrical distribution equipment

Voltage and Ratings

  • Maximum Voltage: 600 VAC
  • Interrupting Rating at 240 VAC: 125 kA
  • Interrupting Rating at 480 VAC: 100 kA
  • Interrupting Rating at 600 VAC: 65 kA
  • Current Rating: 1800 Ampere
  • Frequency Rating: Standard AC Power Distribution Applications

Product Data

  • Frame Series: PXF
  • Connection Type: Bolt-On
  • Pole Configuration: 3 Pole
  • Sensor Rating: 2000 Amp
  • Rating Plug Type: ARP090
  • Trip Unit Functions: LSI
  • Voltage Class: 600VAC Maximum
  • Product Condition Support: Certified Reconditioned and New Surplus
  • Application Type: Power Distribution and Circuit Protection

Important Note

This product image represents a base model and is provided for identification purposes only. Accessories ordered together with the breaker can be professionally installed according to your requested configuration at no additional cost. The included one-year warranty covers standard shipping charges, repairs, replacement parts, and labor required for recertification under normal operating conditions. Warranty coverage excludes damage resulting from misuse, abuse, or normal wear and tear.
  • Type Circuit Breakers
  • Vendor Square D
  • Brand Square D

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).

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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.