Schneider C25N3 ComPacT NSX250N Trip Unit 3P

The Schneider Electric C25N3 is a 3-pole ComPacT NSX250N circuit breaker base frame rated at 250 A (at 40°C) and designed for electrical power distribution. It delivers an ultimate short-circuit breaking capacity (Icu) of 50 kA at 380/415 V AC per IEC 60947-2, with performance level N at 50 kA/415 V AC. This chassis is supplied without a trip unit, allowing the installer to fit the appropriate protection unit separately.

Technical specifications:

• Commercial reference: C25N3
• Manufacturer: Schneider Electric
• EAN:
• Series / range: ComPacT NSX new generation
• Product type: Base frame (no trip unit)
• Number of poles: 3P
• Rated current [In]: 250 A at 40°C
• Rated voltage [Ue]: 690 V AC 50/60 Hz (IEC 60947-2)
• Rated insulation voltage [Ui]: 800 V AC 50/60 Hz (IEC 60947-2)
• Rated impulse withstand voltage [Uimp]: 8 kV (IEC 60947-2)
• Network type: AC, 50/60 Hz
• Performance level: N - 50 kA at 415 V AC
• Icu breaking capacity: 90 kA at 220/240 V AC; 50 kA at 380/415 V AC; 50 kA at 440 V AC; 36 kA at 500 V AC; 35 kA at 525 V AC; 10 kA at 660/690 V AC (all per IEC 60947-2)
• Ics service breaking capacity: 50 kA at 380/415 V AC; 50 kA at 440 V AC (IEC 60947-2)
• Mechanical endurance: 20,000 cycles (IEC 60947-2)
• Usage category: Category A
• Control type: Handle
• Mounting: Fixed, rear plate
• Connection: Front (upper and lower), 35 mm
• Dimensions (W x H x D): 105 x 161 x 86 mm
• Weight: 1.584 kg
• IP protection: IP40 (IEC 60529)
• IK protection: IK07 (IEC 62262)
• Pollution degree: 3 (IEC 60664-1)
• Operating temperature: -25...70°C
• Storage temperature: -50...85°C
• Standards: EN/IEC 60947-2, UL 60947-4-1

Features and benefits:

• High breaking capacity of 50 kA at 415 V AC suits demanding industrial and commercial distribution networks.
• Suitable for isolation per EN/IEC 60947-2, supporting safe maintenance procedures.
• Wide operating temperature range of -25...70°C ensures reliable performance in harsh environments.
• Chassis supplied without a trip unit, providing flexibility to select the correct protection unit for the application.
• Compact fixed-mount design with front upper and lower connections simplifies panel integration.

Applications:

• Main and sub-main protection in industrial electrical distribution switchboards.
• Power distribution panels in commercial buildings and infrastructure projects.
• Feeder protection in motor control centres and machine control panels.
• Applications requiring a high-capacity circuit breaker frame with separately selected trip unit.

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 C25N3, Schneider Electric C25N3, NSX250N base frame, ComPacT NSX 250 A chassis.