Schneider Electric Compact NSX 250B Circuit Breaker

Schneider Electric Compact NSX250B Circuit Breaker with MicroLogic 5.2 Control Unit Specifications:

• Product Type: Molded Case Circuit Breaker (MCCB)
• Manufacturer: Schneider Electric
• Model: Compact NSX250B with MicroLogic 5.2
• Device Application: Distribution protection
• Poles Description: 3P 3d  
• Rated Current (In): 250 A at 40 °C
• Trip Unit Name: MicroLogic 5.2 E (Ammeter or Energy-metering )
• Trip Unit Technology: Electronic
• Trip Unit Rating: 100–250 A (adjustable)
• Protection Type:
  • L: Overload protection (long time)
  • S: Short-time short-circuit protection (adjustable delay)
  • I: Instantaneous short-circuit protection
• Rated Insulation Voltage (Ui): 800 V AC 50/60 Hz
• Rated Impulse Withstand Voltage (Uimp): 8 kV
• Rated Operational Voltage (Ue): 690 V AC 50/60 Hz
• Network Type: AC
• Network Frequency: 50/60 Hz
• Breaking Capacity Code: B (25 kA at 415 V AC)
• Breaking Capacity (Icu):
  • 40 kA at 220/240 V AC 50/60 Hz (IEC 60947-2)
  • 25 kA at 380/415 V AC 50/60 Hz (IEC 60947-2)
  • 20 kA at 440 V AC 50/60 Hz (IEC 60947-2)
  • 15 kA at 500 V AC 50/60 Hz (IEC 60947-2)
• Rated Service Breaking Capacity (Ics):
  • 40 kA at 220/240 V AC 50/60 Hz (IEC 60947-2)
  • 25 kA at 380/415 V AC 50/60 Hz (IEC 60947-2)
  • 20 kA at 440 V AC 50/60 Hz (IEC 60947-2)
  • 15 kA at 500 V AC 50/60 Hz (IEC 60947-2)
• Suitability for Isolation: Yes (EN/IEC 60947-2)
• Utilization Category: Category A
• Control Type: Toggle 
• Mounting Mode: Fixed
• Mounting Support: Backplate
• Mounting Position: Horizontal, vertical, or flat on the back
• Connection Type: Front connection (upside and downside)
• Connection Pitch: 35 mm
• Long-Time Pick-Up Adjustment Type (Ir): Adjustable via dials or keypad (9 settings)
• Long-Time Pick-Up Adjustment Range: 100–250 A
• Long-Time Protection Delay Adjustment Type (tr): Adjustable
• Long-Time Protection Delay Adjustment Range:
  • 400 s at 1.5 x Ir
  • 16 s at 6 x Ir
  • 11 s at 7.2 x Ir
• Thermal Memory: 20 minutes before and after tripping
• Short-Time Pick-Up Adjustment Type (Isd): Adjustable (9 settings)
• Short-Time Pick-Up Adjustment Range: 1.5–10 x Ir
• Short-Time Protection Delay Adjustment Type (tsd): Adjustable
• Short-Time Protection Delay Adjustment Range: 0–0.4 s
• I²t ON/OFF: Selectable for short-time protection curve
• Instantaneous Pick-Up Adjustment Type (Ii): Adjustable
• Display Type: LCD (for settings and measurements)
• Local Signalling:
  • Flashing LED (green): Ready to operate
  • LED 90 % Ir (orange): Overload pre-alarm
  • LED 105 % Ir (red): Overload alarm
• Measurement Functions (MicroLogic 5.2 E):
  • Instantaneous and demand current measurements
  • Energy metering 
  • Kilowatt-hour metering
  • Operational assistance (e.g., peak demand, customized alarms, operation counters)
• Communication: Configurable for communication with other devices (e.g., via EcoStruxure Power architecture)
• Mechanical Durability: 20,000 cycles
• Electrical Durability:
  • 20,000 cycles at 440 V In/2
  • 10,000 cycles at 440 V In
  • 10,000 cycles at 690 V In/2
  • 5,000 cycles at 690 V In
• Power Dissipation per Pole: 17.6 W
• Number of Slots for Electrical Auxiliaries: 5 slots
• IP Degree of Protection: IP40 (IEC 60529)
• IK Degree of Protection: IK07 (IEC 62262)
• Electrical Shock Protection Class: Class II (front face)
• Pollution Degree: 3 (IEC 60664-1)
• Ambient Air Temperature for Operation: -25 to 70 °C
• Ambient Air Temperature for Storage: -50 to 85 °C
• Relative Humidity: 0–95 %
• Operating Altitude: 0–2000 m without derating; 2000–5000 m with derating
• Standards Compliance: EN/IEC 60947-2, CCC, EAC, marine specifications
• Product Certifications: IEC, CCC, EAC
• Dimensions:
  • Width: 105 mm (3P), 140 mm (4P)
  • Height: 161 mm
  • Depth: 86 mm
• Weight: Approximately 2.4 kg 
• HS Code: 8536.20.90 
• Country of Origin: France