LGL36400CU44X Schneider Electric Industrial Automation Components

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Square D by Schneider Electric LGL36400CU44X is a Moulded Case Circuit Breaker (MCCB) within the PowerPacT LGL sub-range, designed as a PowerPact L-Frame 600 Micrologic 6.3A (LSIG) 3P 400A 600Vac 18kA with lugs 100% rated for connections on both load and line sides. It features three poles (3P) and offers protection functions including Long-time (L), Short-time with fixed time delay (S), Instantaneous (I), Ground fault (G), and Zone Selective Interlocking (ZSI). The rated current is 400A, with a rated insulation voltage (Ui) of 750 V, and a rated voltage (AC) of 600Vac 600Y/347Vac. It is designed for individual unit mount on plate, with dimensions of 382 mm in height, 153 mm in width, and 171 mm in depth, and has an IP40 degree of protection. The operating mode is manual toggle, with protection settings adjustable for overload (L), short-circuit with time delay (S), instantaneous protection against short-circuit (I), and earth fault (G). The rated operating voltage (Ue) is 690 V, with a rated impulse voltage (Uimp) of 8 kV. The trip current rating is 400 AT, with a frame current rating of 600 AF, and a short circuit breaking rating varying from 65kA at 240Vac to 20kA at 500Vdc, according to UL489 standards. The trip unit type features electronic technology with a Micrologic 6.3A (LSIG) series, providing LSIG protection and an LCD display. Its measurement function includes current measurements for phases and neutral, RMS instantaneous current, current unbalance between phases, highest RMS current of the 3 phases, ground fault current, and demand/peak current values on all 3 phases plus neutral, with a calculation window adjustable between 5-60 minutes. The utilisation category is A.