Technical Specifications General Characteristics Brand: Schneider Electric Series: Acti 9 Product Range: iC60 / iDPN Full Reference: WATSNB-630/630 .4CBR Standards Compliance: IEC/EN 60947-2, IEC/EN 60898-1 (partial) Modular Width: 4 modules (4 × 18mm = 72mm) Electrical Ratings Number of Poles: 4 poles (3 phases + neutral) Rated Current (In): 630A Rated Operational Voltage (Ue): 400V AC, 50/60Hz Rated Insulation Voltage (Ui): 500V AC Rated Impulse Withstand Voltage (Uimp): 4kV Utilization Category: A Breaking Capacities Rated Short-Circuit Capacity (Icn): 25kA at 400V AC (IEC 60898-1) Ultimate Short-Circuit Capacity (Icu): 36kA at 400V AC (IEC 60947-2) Service Short-Circuit Capacity (Ics): 100% of Icu Protection Functions Overcurrent Protection: Thermal-magnetic trip unit Tripping Characteristic: Curve B, C, or D (specified in ordering code suffix) Residual Current Protection: Current Balance Relay (CBR) technology Residual Current Type: Type B (protects against AC, pulsed DC, and smooth DC residual currents) Residual Current Sensitivity (IΔn): High sensitivity (typically 30mA, 100mA, 300mA, 500mA, 1A, 3A - specified in ordering code) Tripping Time: ≤ 300ms at IΔn Mechanical Characteristics Mounting: DIN rail mounting (35mm symmetrical rail) Terminals: Front-accessible screw terminals for busbar or cable connection Torque: As per manufacturer's specification Electrical Endurance: ≥ 10,000 cycles Mechanical Endurance: ≥ 20,000 cycles Position: Any (vertical/horizontal) Environmental Conditions Ambient Temperature: -25°C to +60°C (operating) Storage Temperature: -40°C to +85°C Relative Humidity: ≤ 95% non-condensing Pollution Degree: 2 Altitude: ≤ 2000m without derating Degree of Protection: IP20 (when installed in enclosure) CBR Specific Features Technology: Electronic Current Balance Relay Power Supply: Requires external CBR power supply unit (PSU) Immunity: High immunity to electromagnetic disturbances and transient currents Indication: LED status indicators for power and fault conditions Test Function: Manual test button integrated Remote Monitoring: Potential for remote indication contacts (optional) Applications Industrial installations with variable frequency drives Photovoltaic systems Data centers Healthcare facilities Critical infrastructure Applications with DC components or power electronics