Schneider C40H32D400 Circuit breaker, ComPacT NSX400H, 70kA/415VAC, 3P, MicroLog

The Schneider Electric C40H32D400 is a ComPacT NSX400H 3-pole circuit breaker with an integrated MicroLogic 2.3 electronic protection unit rated at 400A. Designed for power distribution applications, it delivers a rated ultimate short-circuit breaking capacity of 70 kA at 380/415V AC and supports voltages up to 690V AC. The electronic LSoI protection function provides adjustable long-time, short-time, and instantaneous overcurrent protection.

Technical specifications:

• Commercial reference: C40H32D400
• Manufacturer: Schneider Electric
• EAN:
• Series / range: ComPacT NSX new generation
• Product type: Circuit breaker
• Number of poles: 3P (3 protected poles)
• Rated current [In]: 400A at 40°C
• Rated voltage [Ue]: 690V AC 50/60 Hz
• Network type: AC, 50/60 Hz
• Performance level: H - 70 kA at 415V AC
• Breaking capacity [Icu]: 100 kA at 220/240V AC; 70 kA at 380/415V AC; 65 kA at 440V AC; 50 kA at 500V AC; 20 kA at 660/690V AC (IEC 60947-2)
• Service breaking capacity [Ics]: 100 kA at 220/240V AC; 70 kA at 380/415V AC (IEC 60947-2)
• Protection unit: MicroLogic 2.3, electronic, LSoI function
• Long-time protection pick-up [Ir]: adjustable 160-400A (9 settings)
• Short-time protection pick-up [Isd]: adjustable 1.5-10 x Ir (9 settings)
• Instantaneous protection pick-up [Ii]: fixed at 4800A
• Thermal memory: 20 minutes before and after tripping
• Control type: Handle (manual)
• Mounting: Fixed, rear plate
• Handle mounting position: Horizontal and vertical, flat on back
• Auxiliary slots: 6
• Mechanical endurance: 15,000 cycles
• Electrical endurance: 12,000 cycles at 440V In/2
• Power dissipation per pole: 19.2 W
• Dimensions (WxHxD): 140 x 255 x 110 mm
• Weight: 6.05 kg
• IP protection rating: IP40 (IEC 60529)
• Impact protection: IK07 (IEC 62262)
• Rated insulation voltage [Ui]: 800V AC 50/60 Hz
• Rated impulse withstand voltage [Uimp]: 8 kV
• Operating temperature: -25 to 70°C
• Storage temperature: -50 to 85°C
• Relative humidity: 0-95%
• Standard: EN/IEC 60947-2

Features and benefits:

• Electronic MicroLogic 2.3 protection unit with adjustable long-time and short-time thresholds for precise selective coordination
• High breaking capacity of 70 kA at 415V AC enables use in demanding industrial and commercial power distribution environments
• Local LED signalling: green LED (device ready), red LED at 105% Ir (overload), orange LED at 90% Ir (pre-alarm)
• Suitable for isolation per EN/IEC 60947-2, Category A usage
• Six auxiliary slots available for electrical add-on accessories
• Wide operating temperature range of -25 to 70°C for installation in harsh environments

Applications:

• Main and sub-main circuit protection in industrial power distribution boards
• Protection of distribution feeders in commercial buildings and large installations
• Incoming protection for motor control centres and industrial switchboards
• Applications requiring selective coordination with downstream protective devices
• High short-circuit environments requiring H-performance level breakers

Compliant with EN/IEC 60947-2 and UL 60947-4-1. Part of the Schneider Electric ComPacT NSX new generation range.

Also known as: Schneider C40H32D400, Schneider Electric C40H32D400, Schneider NSX400H circuit breaker, ComPacT NSX 400A MCCB.