The Schneider Electric Square D LJL36400U43X is a molded case circuit breaker designed for robust electrical protection in industrial environments. As part of the LJL series, this breaker offers reliable interruption capabilities for circuits requiring significant current handling. Its construction is engineered to withstand demanding operational conditions, making it suitable for integration into power distribution systems where equipment safety and operational continuity are paramount.

Technical details

• Series: Square D LJL
• Type: Molded Case Circuit Breaker
• Current Rating: 400 Amperes (A)
• Frame Size: LJL (specific frame size details should be verified against manufacturer datasheet)
• Number of Poles: 3 (indicated by the '3' in the part number)
• Voltage Rating: 600 Volts AC (V) (indicated by the '6' in the part number, common for this series)
• Interrupting Capacity: 42,000 Amperes (kA) at 480V AC (indicated by the '40' in the part number, common for this series)
• Terminal Type: Lug (indicated by the 'U' in the part number)
• Mounting Type: Bolt-on (indicated by the 'X' in the part number)

Applications & compatibility

This circuit breaker is commonly employed in heavy-duty industrial applications such as motor control centers, main service disconnects, and feeder protection for large machinery. It is designed to integrate seamlessly into electrical distribution panels and systems found in manufacturing plants, processing facilities, and other industrial settings requiring reliable overcurrent protection.

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 LJL36400U43X or contact our technical team for cross-reference assistance with compatible LJL series components.