NSX250B 25kA AC 3P3D 160A TMD 50 °C

About The Product

ComPacT NSX250B is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all standard and specific applications. This product embeds a 160 A rating thermal-magnetic trip unit (TMD) under 50℃ ambient air temperature for operation. TMD trip unit provides an adjustable thermal overload protection and a fixed magnetic protection.

Technical Data

• Brand : schnider
• Number of protected poles : 3
• [In] rated current : 160 A at 40 °C
• [Ui] rated insulation voltage : 800 V AC 50/60 Hz
• [Ue] rated operational voltage : 690 V AC 50/60 Hz
• Network frequency : 50/60 Hz
• [Icu] rated ultimate short-circuit breaking capacity : 40 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2
• 25 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2
• 20 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2
• 15 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2
• [Uimp] rated impulse withstand voltage : 8 kV
• Mechanical durability : 20000 cycles
• Electrical durability : 20000 cycles at 440 V In/2
• 10000 cycles at 440 V In
• 10000 cycles at 690 V In/2
• 5000 cycles at 690 V In
• Power dissipation per pole : 11.78 W
• Connection pitch : 35 mm
• Number of slots for electrical auxiliaries : 5 slot(s)
• Width (W) : 105 mm
• Height (H) : 161 mm
• Depth (D) : 86 mm
• Net weight : 2.4 kg
• Ambient air temperature for operation : -25…70 °C
• Ambient air temperature for storage : -50…85 °C
• Relative humidity : 0…95 %