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EZD400E 3P 350A

The Schneider Electric EZD400E 3P 350A is a high-current, three-pole electronic circuit breaker from the Acti 9 iEZ range, with an E-type electronic trip unit. It is designed for reliable protection and selective coordination of main feeder circuits and high-power sub-distribution boards in commercial buildings, industrial facilities, and large infrastructure projects.

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Parameters: Parameter Value / Description Frame Size (Iu) 400 A Rated Current (In) 350 A (Thermal setting Ir is adjustable, typically within 0.4 - 1.0 x In). Number of Poles 3 Tripping Unit Type Electronic (E-type) - Basic adjustable protection unit. Rated Operational Voltage (Ue) 400 V AC (3-phase) Rated Insulation Voltage (Ui) 690 V Rated Impulse Withstand Voltage (Uimp) 8 kV Rated Ultimate Breaking Capacity (Icu) 50 kA at 400V AC (IEC 60947-2). (Specific value may vary by model variant - confirm via catalog). Rated Service Breaking Capacity (Ics) 100% of Icu (50 kA) for category B breakers (IEC 60947-2). Protection Functions L - Long-time delay (Adjustable Ir, tr), S - Short-time delay (Adjustable Isd, tsd), I - Instantaneous (Adjustable Ii). Ground fault protection is not standard on the base E unit (requires optional Vigi module). Standard IEC 60947-2 Mounting Fixed mounting on a dedicated base or plate. Connection Front or rear connection (depends on the selected base/accessories). Cable lugs or busbar connection typical. Width Approx. 180 mm (6 modules) - specific dimensions depend on the base.