LDL36400U31X Schneider Electric Industrial Automation Components

Square D by Schneider Electric LDL36400U31X is a Moulded Case Circuit Breaker (MCCB) within the PowerPacT LDL sub-range, featuring a PowerPact L-Frame 600 Micrologic 3.3 (LI) design. It is a 3-pole (3P) device with a rated current of 400A and a rated insulation voltage (Ui) of 750V. This MCCB operates at a rated voltage (AC) of 600Vac, with a rated voltage (DC) of 250Vdc, and offers a mounting mode of individual unit mount on plate. It has a net height of 382 mm, a net width of 153 mm, and a net depth of 171 mm. The degree of protection is IP40, and it operates via a toggle (manual) mode. Its protection functions include L (Long-time protection) and I (Instantaneous protection), with protection settings adjustable for overload (0.3...1 x In, 125A...400A) and instantaneous protection against short-circuit (1.5...12 x In, 600A...4800A). The rated operating voltage (Ue) is 690 V, with a rated impulse voltage (Uimp) of 8 kV. The trip current rating is 400 AT, and the frame current rating is 600 AF. It has a short circuit breaking rating of 25kA at 240Vac, 18kA at 480Vac, and 14kA at 600Vac, all per UL489 standards. The trip unit type is an electronic Micrologic Standard 3.3 (LI) with no display, and it falls under utilisation category A. Connections are made via lugs on both load and line sides.

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