Specifications Category Technical Specifications Basic Identification Manufacturer & Series Schneider Electric, EZD Series Complete Model Designation EZD400E 4P 400A Product Type Molded Case Circuit Breaker (MCCB) Standards Compliance IEC 60947-2, GB 14048.2, CE Certified Electrical Ratings Number of Poles 4-Pole (L1, L2, L3, N) Frame Size E Frame Rated Operational Current (Iu/Ir) 400 Amperes Rated Insulation Voltage (Ui) 1000V AC Rated Operational Voltage (Ue) 690V AC (50/60 Hz) Rated Frequency 50/60 Hz Breaking Capacity Ultimate Breaking Capacity (Icu) 50kA at 400/415V AC (Standard) 65kA at 400/415V AC (High-breaking version) Service Breaking Capacity (Ics) 100% of Icu (Ics = Icu) Rated Short-Time Withstand Current (Icw) Typically 25kA for 1 second (varies by specific model) Protection Characteristics Overload Protection (L) Adjustable: (0.7-1.0) x In ±10% (Electronic version) Fixed thermal protection (Thermal-Magnetic version) Short-Circuit Protection (I) Adjustable: (1.5-10) x In ±15% (Instantaneous) Fixed magnetic trip (Thermal-Magnetic version) Trip Unit Options TM-D: Fixed thermal-magnetic E/Micrologic: Electronic, adjustable with digital display Mechanical & Physical Specifications Mounting DIN Rail Mounting (35mm symmetrical) or Fixed Mounting Electrical Connections Front or Rear terminals Screw-type terminals for copper/aluminum cables Busbar connection possible Width Approximately 143mm (4-pole) Weight Approximately 2.5-3.0 kg (depending on accessories) Mechanical Durability 10,000 operations minimum Electrical Durability 3,000 operations at rated current Environmental Specifications Operating Temperature -25°C to +70°C (Derating may apply above 40°C) Storage Temperature -40°C to +85°C Pollution Degree Degree 3 Installation Altitude Up to 2000m without derating Protection Degree (IP Rating) IP20 (front panel mounted) Accessories (Common Options) Auxiliary Contacts OF, SDE, OF+SDE, alarm contact Shunt Trip 24V AC/DC, 48V AC/DC, 110V AC, 220V AC/DC Under-Voltage Release Available for various voltage ratings Motor Operator Manual or remote operation mechanism Terminal Covers For increased safety and IP rating Locking Devices Padlock provisions, locking handles Interlocks Mechanical interlock kits for multiple breakers