LJA36400CU31X

Schneider Electric’s LJA36400CU31X is an advanced molded-case circuit breaker designed for 3-pole configurations with a maximum continuous current rating of 400 A. This unit operates at a nominal voltage of 600 V AC, functioning effectively in both 50 and 60 Hz systems. It offers significant protection against electrical faults with varying interrupt capacities: rated at 25 kA at 600 V AC, 65 kA at 480 V AC, and an impressive 100 kA at 240 V AC.

To enhance operational reliability, this circuit breaker incorporates the MicroLogic 3.3 electronic trip unit. This feature is critical for ensuring precise fault detection and responsive trip actions. The device supports a continuous rating enabling a fully functional 100 % duty cycle, making it suitable for high-demand applications.

Installation is streamlined through an I-Line plug-in mounting style, ensuring compatibility with existing systems. The breaker is equipped with I-Line terminations for both line connections and load-side lugs, simplifying the integration process. Communication is facilitated through a Modbus interface over Ethernet, providing efficient integration into modern control systems.

In terms of physical specifications, the LJA36400CU31X measures 340 mm in height, 140 mm in width, and 110 mm in depth, while weighing approximately 6.2 kg. It's rated for conductor capacities accommodating two conductors ranging from AWG 2/0 up to 500 kcmil for both copper and aluminum conductors, ensuring flexibility in installation.