Schneider C25S4 Circuit Breaker Basic Frame

The C25S4 Schneider is a ComPacT NSX250S circuit breaker basic frame designed for high-performance protection in low-voltage electrical systems. Rated for 250 A and supporting 4-pole configurations, it delivers a breaking capacity of 100 kA at 415 VAC, making it ideal for high-fault-current environments.

Delivered without a trip unit, this frame supports a full range of Micrologic and thermal-magnetic modules for tailored protection and system flexibility. Suitable for industrial panels, switchboards, and backup circuits.

Built to IEC 60947-2 compliance, the C25S4 ensures safe, reliable integration in demanding applications.

Technical Specifications

• Model: C25S4
• Type: Circuit Breaker Basic Frame (without trip unit)
• Brand: Schneider Electric
• Range: ComPacT NSX New Generation

Power & Performance

• Rated Current: 250 A at 40°C
• Poles: 4P (Four Poles)
• Neutral Position: Left
• Breaking Capacity (Icu): 100 kA at 380/415V AC 50/60Hz (IEC 60947-2)
• Rated Operational Voltage (Ue): 690V AC 50/60Hz (IEC 60947-2)
• Network Type: AC
• Network Frequency: 50/60 Hz
• Utilization Category: Category A
• Rated Insulation Voltage (Ui): 800V AC 50/60Hz (IEC 60947-2)
• Rated Impulse Withstand Voltage (Uimp): 8 kV (IEC 60947-2)

Rated Service Short-Circuit Breaking Capacity (Ics):

• 100 kA at 380/415V AC
• 90 kA at 440V AC
• 65 kA at 500V AC
• 40 kA at 525V AC
• 15 kA at 660/690V AC
• 120 kA at 220/240V AC

Build & Design

• Mounting Mode: Fixed
• Control Type: Toggle
• Suitability for Isolation: Yes (EN/IEC 60947-2)
• Standards Compliance: IEC 60947-2, UL 60947-4-1
• Visible Break: No
• Contact Position Indicator: No
• Protection Type: Without Protection

C25S4 Physical Specifications

• Gross Weight: 2.136 kg

Dimensions:

• Height: 161 mm
• Width: 140 mm
• Depth: 86 mm
• Connection Pitch: 35 mm

Additional Options & Features

• Mechanical Durability: 20,000 cycles (IEC 60947-2)
• Electrical Durability:
  • 5,000 cycles at 690V AC (In)
  • 10,000 cycles at 440V AC (In)
  • 20,000 cycles at 440V AC (In/2)
  • 10,000 cycles at 690V AC (In/2)
• Mounting Support: Backplate
• Upside & Downside Connection: Front

Compliance & Standards

• Certifications: IEC 60947-2, UL 60947-4-1
• IP Protection: IP40 (IEC 60529)
• Shock Protection Class: Class II
• IK Protection: IK07 (IEC 62262)
• Pollution Degree: 3 (IEC 60664-1)

Environmental Impact

• Carbon Footprint: 256 kg CO₂-eq (Total Life Cycle)
• Recycled Metal Content: 0%

Key Features & Benefits

✅ Flexible Design: Delivered without trip unit, allowing compatibility with a wide range of Schneider Electric trip units (sold separately).

✅ High Mechanical Durability: Rated for 20,000 mechanical operations ensuring long-term reliability.

✅ Compact & Space-Saving: Optimized size for installation in standard and demanding electrical distribution environments.

✅ Reliable Performance: 100kA breaking capacity at 415V AC for high fault-level installations.

✅ Part of EcoStruxure Power: Fully compatible with Schneider Electric’s EcoStruxure Power architecture for digital monitoring and control.

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