Schneider C4042D250 MicroLogic 2.3 Trip Unit

The Schneider C4042D250 is a MicroLogic 2.3 electronic trip unit designed for advanced protection in low-voltage power distribution systems. Specifically engineered for integration with ComPacT NSX400/630 circuit breakers, this unit supports 4-pole configurations and is rated for 250 A at 40 °C.

It offers comprehensive protection functions, including long-time (L), short-time (S), and instantaneous (I) protections, with adjustable settings to suit various applications. The unit features LED indicators for overload and readiness status, enabling real-time monitoring of system conditions. Compliant with IEC 60947-2 standards, it ensures reliable performance in industrial and commercial environments.

Technical Specifications

• Model: C4042D250
• Type: Electronic Trip Unit
• Brand: Schneider Electric
• Range: ComPacT NSX New Generation

Power & Performance

• Rated Current: 250 A at 40°C
• Poles: 4P (Four Poles)
• Protected Poles: 3D + N/2 or 4D
• Neutral Position: Left
• Trip Unit Technology: Electronic
• Operational Voltage: 690V AC 50/60Hz
• Trip Unit Protections: L (Long-Time), S (Short-Time), I (Instantaneous)
• Application: Distribution

Protection Functions

• Long-Time Protection (Overload): Adjustable 70A – 250A (9 settings)
• Long-Time Protection Delay:
  • 11s at 7.2 x Ir
  • 16s at 6 x Ir
  • 400s at 1.5 x Ir
• Neutral Protection Settings:
  • 0.5 x Ir (3D + N/2)
  • 1 x Ir (4D)
  • No protection (3D)
• Thermal Memory: 20 minutes before and after tripping
• Short-Time Protection (Short-Circuit): Adjustable 1.5 to 10 x Ir
• Short-Time Delay: Fixed
• Instantaneous Protection: Fixed at 3000A
• Earth Leakage Protection: Not Included
• Zone Selective Interlocking (ZSI): Not Available

Build & Design

• Mounting Mode: Fixed
• Local Signaling:
  • Flashing Green LED – Ready to operate
  • Red LED – Overload (105% Ir)
  • Orange LED – Pre-alarm (90% Ir)

C4042D250 Physical Specifications

• Gross Weight: 1.77 kg
• Net Weight: Approx. 1.7 kg

Dimensions:

• Height: 135 mm
• Width: 175 mm
• Depth: 215 mm

Additional Features

• Operating Temperature: -25°C to 70°C
• Storage Temperature: -50°C to 85°C
• Standards Compliance: IEC 60947-2, Pollution Degree 3
• Electrical Shock Protection: Class II
• IP Rating: IP40 (IEC 60529)

Environmental Impact

• Carbon Footprint: 45 kg CO₂-eq (Total Life Cycle)
• Recycled Metal Content: 0%

Key Features & Benefits

✅ Electronic Adjustable Protections: Configure long-time, short-time, and neutral protections with precision.

✅ Status LED Indicators: Clear visual alerts for operation readiness and overload status.

✅ Robust 4-Pole Design: Ideal for applications requiring neutral protection.

✅ EcoStruxure Power Ready: Compatible with PowerTag NSX for connected energy monitoring.

✅ Effortless Installation: Designed for reduced wiring time and ergonomic handling.

📦 Order Today for Fast UK & Europe Delivery!

At Drive Outlet Megastore, we offer the best Schneider C4042D250 prices, ready for quick dispatch across the UK and Europe.

Need help selecting the right trip unit or advice on NSX frame compatibility? Contact Drive Outlet Megastore.

Our expert team is ready to assist you! Get in touch today!