The Square D NXL36600 600A 3 Pole Electronic MCCB – Line & Load Mount – 600V is a high-performance molded case circuit breaker designed for advanced protection and dependable operation in industrial and commercial electrical distribution systems. Featuring an NXL frame style with an electronic non-interchangeable trip unit, this breaker incorporates LSI protection functions for enhanced overload, short-time, and instantaneous protection. Engineered with superior interrupting capacity and durable construction, the NXL36600 provides reliable performance for demanding power distribution applications requiring efficient fault management and system protection.

Product Specifications

• Brand: Square D
• Model: NXL36600
• Rated Current: 600 Ampere
• Sensor Size: 1200 Amp
• Number of Poles: 3 Pole
• Breaker Type: Electronic Molded Case Circuit Breaker (MCCB)
• Mount Type: Line & Load Mount
• Frame Type: NXL Frame
• Trip Unit Type: Electronic Non-Interchangeable
• Trip Unit Functions: LSI (Long Time, Short Time, Instantaneous)
• Rating Plug Installed: ARP040
• Standard Lug Type: Line and Load End
• Application: Commercial and Industrial Power Distribution

Technical Specifications

• Interrupting Capacity:
  • 125 kA @ 240 VAC
  • 100 kA @ 480 VAC
  • 65 kA @ 600 VAC
• Operating Temperature Reference: 40°C
• Protection Functions: LSI Protection
• Terminal Configuration: Line and Load End Terminals Standard
• Electronic Trip Technology for Precise Protection
• High Fault Interruption Capability
• Heavy-Duty Industrial Design

Voltage and Ratings

• Rated Operational Voltage: Up to 600 VAC
• Current Rating: 600A
• Sensor Rating: 1200A
• Pole Configuration: 3 Pole
• Interrupting Rating at 240 VAC: 125 kA
• Interrupting Rating at 480 VAC: 100 kA
• Interrupting Rating at 600 VAC: 65 kA
• Frequency: 50/60 Hz
• Temperature Calibration: 40°C

Product Data

• Manufacturer: Square D
• Product Condition: New / Certified Reconditioned (Depending on Availability)
• Warranty: 1 Year In-House Warranty
• Frame Style: NXL Frame
• Connection Configuration: Line and Load End Terminal Configuration
• Suitable For: Industrial Panels, Switchboards, and Power Distribution Systems
• Accessory Installation: Available at No Additional Cost with Breaker Purchase
• Packaging: Standard Industrial Packaging
• Country of Origin: USA

Important Note

Product images are provided for identification purposes only and may represent a standard or base model configuration. Accessories ordered together with the breaker can be installed according to customer requirements at no additional charge. Installation, servicing, and maintenance should only be carried out by qualified electrical professionals in compliance with local electrical regulations and safety standards. Warranty coverage includes repairs, labor, replacement parts, and standard shipping required for recertification, excluding damage caused by misuse, improper installation, or normal wear and tear.

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.