Schneider C25N4 ComPacT NSX250N Trip Unit 4P

The Schneider Electric C25N4 is a 4-pole 250 A basic frame circuit breaker from the ComPacT NSX new generation range, designed for low-voltage electrical energy distribution. Supplied without a protection unit and rated at 690 V AC, it delivers an ultimate breaking capacity (Icu) of 50 kA at 380/415 V AC per IEC 60947-2.

Technical specifications:

• Commercial reference: C25N4
• Manufacturer: Schneider Electric
• EAN:
• Series / range: ComPacT NSX new generation
• Product type: Basic frame, without protection unit
• Number of poles: 4P
• Rated current [In]: 250 A at 40°C
• Rated voltage [Ue]: 690 V AC 50/60 Hz (IEC 60947-2)
• Icu ultimate breaking capacity: 90 kA at 220/240 V AC; 50 kA at 380/415 V AC; 10 kA at 660/690 V AC (IEC 60947-2)
• Performance level: N (50 kA at 415 V AC)
• Mounting: Fixed, back plate
• Connection terminals: Front (upper and lower), 35 mm
• Dimensions (W x H x D): 140 x 161 x 86 mm
• Weight: 2.104 kg
• IP protection rating: IP40 (IEC 60529)
• Operating temperature: -25 to 70°C
• Standards: EN/IEC 60947-2, UL 60947-4-1

Features and benefits:

• High breaking capacity up to 90 kA at 220/240 V AC ensures reliable protection in high short-circuit current environments.
• 4-pole design with neutral conductor positioned on the left suits three-phase plus neutral distribution networks.
• Approved for use as an isolator in accordance with EN/IEC 60947-2, providing additional circuit isolation capability.
• Wide operating temperature range of -25 to 70°C supports installation in demanding thermal environments.
• Fixed mounting on back plate with front-accessible terminals simplifies panel assembly and wiring.

Applications:

• Main incoming circuit protection in industrial and commercial low-voltage distribution boards.
• Switchgear assemblies requiring a high-capacity circuit breaker frame paired with a separately selected trip unit.
• Power distribution panels in manufacturing plants, infrastructure facilities, and commercial buildings.

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 C25N4, Schneider Electric C25N4, NSX250N 4P frame, ComPacT NSX250N base frame.