Schneider Electric C40K32D250 ComPacT NSX400K MCCB 3P 250A MicroLogic 2.3

The Schneider Electric C40K32D250 is a 3-pole, fixed-mounted ComPacT NSX400K circuit breaker rated 250 A at 40 °C, designed for AC networks at 800–1000 V AC. It is equipped with a Micrologic 2.3 electronic trip unit providing long-time overload, short-time short-circuit protection with fixed delay, and instantaneous short-circuit protection, conforming to EN/IEC 60947-2 and suitable for special applications.

• Rated current [In]: 250 A at 40 °C
• Rated voltage [Ue]: 800–1000 V AC, 50/60 Hz
• Poles: 3P
• Ultimate breaking capacity [Icu]: 36 kA at 800 V AC; 10 kA at 1000 V AC (IEC 60947-2)
• Service breaking capacity [Ics]: 10 kA at 800 V AC; 10 kA at 1000 V AC (IEC 60947-2)
• Trip unit: Micrologic 2.3 electronic, LSoI function (long-time overload, short-time delay with fixed delay, instantaneous short-circuit)
• Long-time pickup [Ir]: Adjustable, 70–250 A, 9 settings
• Short-time pickup [Isd]: Adjustable, 1.5–10 × Ir, 9 settings; fixed threshold 3000 A
• Thermal memory: 20 minutes before and after tripping
• Rated insulation voltage [Ui]: 1000 V AC; rated impulse withstand voltage [Uimp]: 8 kV
• Durability: 15,000 mechanical operating cycles; 1,000 electrical cycles at 1000 V In
• Standards & certification: EN/IEC 60947-2; CE; CCC; Class II; pollution degree 3 per IEC 60664-1
• Protection rating: IP40 (IEC 60529); IK07 (IEC 62262); operating temperature −25 to +70 °C
• Dimensions (W × H × D): 140 × 255 × 110 mm; weight: 6.05 kg