The Schneider Electric Square D NLLL36000S40X is an automatic molded case circuit breaker designed for robust electrical circuit protection in demanding industrial environments. As part of the NLL series, this 3-pole unit offers reliable performance for applications requiring high current handling and fault interruption capabilities.

Technical Details

• Series: NLL
• Poles: 3
• Voltage Rating: 600V AC
• Amperage Rating: 400A
• Interrupting Capacity (kA): 125 at 240V AC, 100 at 480V AC, 50 at 600V AC
• Frame Size: L (indicated by 'L' in NLLL)
• Terminal Type: Screw (indicated by 'S' in S40X)
• Mounting Type: Fixed (typical for this series and frame size)
• Trip Unit Type: Thermal-Magnetic (indicated by '36000' which often denotes a 36kA magnetic trip rating, common for this frame size)

Applications & Compatibility

This molded case circuit breaker is suitable for use in main distribution panels, branch circuit protection, and as a disconnect switch in industrial facilities. It is commonly found in heavy manufacturing, power generation, and large commercial building electrical systems where reliable protection against overloads and short circuits is critical.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider Electric Square D NLLL36000S40X or contact our technical team for cross-reference assistance with compatible NLL series components.