The Schneider Electric Acti 9 iEZ EZD250M is an intelligent circuit breaker from the Acti 9 iEZ range, built on a 250A frame and set to a 200A operational current via its built-in electronic trip unit.
Parameters:
Parameter Value / Description
Frame Size (Iu) 250 A
Rated / Set Current (In) 200 A (The long-time protection setting Ir is adjustable within a wide range, e.g., 0.4-1.0 x Iu, allowing it to be set precisely to 200A).
Number of Poles Typically 3 (for three-phase systems). Also available in 4P (3P+N) configuration.
Tripping Unit Type Intelligent Electronic Micrologic "M" Series. This encompasses several variants with different functionalities:
• MA: Modbus Addressable (Communication)
• ME: Energy Metering (Advanced Measurement)
• MD: Basic Display & Protection
Communication (MA Variant) Modbus RTU over built-in RS-485 serial interface (for "MA" units).
Rated Operational Voltage (Ue) 400 V AC (for 3-phase)
Rated Insulation Voltage (Ui) 690 V
Rated Ultimate Breaking Capacity (Icu) Typically 50 kA at 400V AC (IEC 60947-2). (Specific level "N" or "H" to be confirmed by catalog).
Protection Functions L - Long-time delay (Adjustable Ir, tr), S - Short-time delay (Adjustable Isd, tsd), I - Instantaneous (Adjustable Ii). Ground fault (G) protection is typically an optional add-on module (iVigi).
Measurement & Monitoring Comprehensive (Especially for ME/MA units): Phase currents, Voltages, Power (kW, kVAR, kVA), Power Factor, Frequency, Energy (kWh, kVARh), Alarms (overload, imbalance).
Standard IEC 60947-2
Mounting Fixed mounting on a dedicated base.
Connection Front connection with screw-clamp terminals, suitable for busbar or cable lug connection.
Width 135 mm (for 3-pole version, 4.5 modules)