Protecting high-power electrical systems, the Schneider Electric Square D LDL36400U43X is a molded case circuit breaker designed for demanding industrial and commercial applications. This breaker is part of the LDL series, engineered to provide reliable overcurrent protection. Its robust construction ensures dependable operation in environments requiring significant electrical distribution capacity.

Technical details

• Series: LDL
• Type: Molded Case Circuit Breaker
• Frame Size: L (indicated by the 'L' in LDL)
• Voltage Rating: 600VAC
• Current Rating: 400A
• Number of Poles: 3 (indicated by the '3' in 400U43X)
• Interrupting Rating: 42kA at 480V (indicated by the '43X' which typically denotes a 42kAIC rating for this series)
• Terminal Type: Lug (indicated by the 'U' in 400U43X)
• Trip Unit Type: Thermal-Magnetic (indicated by the 'X' which often signifies a standard thermal-magnetic trip unit in this series)

Applications & compatibility

The Schneider Electric Square D LDL36400U43X is suitable for main distribution panels, feeder protection, and branch circuit protection in heavy industrial settings. It is commonly found in manufacturing plants, data centers, and large commercial buildings where reliable and high-capacity circuit protection is essential for machinery and electrical infrastructure.

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 LDL36400U43X or contact our technical team for cross-reference assistance with compatible LDL series components.