The Square D MXL36100 molded case circuit breaker is a reliable and compact protection device designed for commercial and industrial electrical distribution systems. Built with an MXL frame style and electronic non-interchangeable trip unit, this breaker incorporates LSI (Long-Time, Short-Time, Instantaneous) trip functions for precise overload and short-circuit protection. Equipped with a 250 Amp sensor size and factory-installed ARP040 rating plug, the breaker delivers adjustable protection performance and dependable circuit interruption under demanding operating conditions. Its rugged molded case construction, bolt-on mounting configuration, and line/load terminal design ensure long-lasting performance and secure installation in critical electrical applications.

Product Specifications

• Brand: Square D
• Model: MXL36100
• Frame Style: MXL
• Product Type: Molded Case Circuit Breaker
• Breaker Type: Electronic
• Trip Unit: Electronic Non-Interchangeable
• Trip Functions: LSI (Long-Time, Short-Time, Instantaneous)
• Sensor Size: 250 Amp
• Amperage Rating: 100 Ampere
• Number of Poles: 3 Pole
• Mounting Type: Bolt On
• Maximum Voltage Rating: 600V
• Rating Plug: ARP040 Installed Standard
• Standard Lug Type: Line and Load End
• Operating Temperature Reference: 40°C
• Warranty: One Year

Technical Specifications

• Electronic trip unit for accurate and adjustable circuit protection
• LSI trip functions for overload and short-circuit protection
• Non-interchangeable trip unit for consistent protection performance
• Factory-installed ARP040 rating plug for calibrated trip settings
• Heavy-duty molded case construction for industrial-grade durability
• Bolt-on mounting configuration for secure electrical installation
• Line and load end terminals for flexible connection options
• Suitable for commercial and industrial power distribution systems

Voltage and Ratings

• Rated Current: 100A
• Sensor Size: 250A
• Rated Maximum Voltage: 600V
• Interrupting Capacity: 65kA @ 240 VAC
• Interrupting Capacity: 65kA @ 480 VAC
• Interrupting Capacity: 25kA @ 600 VAC
• Trip Setting Range: Adjustable 2.5–8 Times Continuous Ampere Rating
• Frequency Rating: 50/60Hz

Product Data

• Manufacturer: Square D
• Product Category: Molded Case Circuit Breaker
• Series: MXL Frame
• Connection Type: Bolt On
• Frame Type: M
• Pole Configuration: 3 Pole
• Lug Configuration: Line and Load End Terminals Standard
• Installed Accessory: ARP040 Rating Plug
• Protection Functions: LSI Protection
• Condition Support: Certified Reconditioned and New Surplus
• Included Warranty Coverage: Shipping, repairs, parts, and labor for recertification
• Application: Commercial and Industrial Electrical Distribution Systems

Important Note

The product image shown represents a base model and is intended for identification purposes only. Accessories purchased together with the breaker can be installed at no additional cost according to customer configuration requirements when installation instructions are provided during checkout. Installation, operation, and maintenance must be performed by qualified electrical personnel in accordance with applicable electrical standards and manufacturer guidelines. Warranty coverage excludes damage caused by misuse, improper installation, or normal wear and tear.