Schneider C6337A570 MicroLogic Vigi 7.3 E AL Trip Unit

The C6337A570 Schneider is a MicroLogic Vigi 7.3 E AL electronic trip unit designed for intelligent protection, monitoring, and energy metering in low-voltage distribution systems. Built for use with ComPacT NSX630 circuit breakers, this unit supports 4-pole configurations and is rated for 570 A at 40 °C.

It provides adjustable protection functions, including long-time (L), short-time (S), instantaneous (I), and earth fault (G) protections, ensuring flexibility across diverse applications. The integrated earth leakage alarm enhances safety by signalling faults without interrupting the power supply. A built-in energy meter with LCD display allows for real-time energy usage and diagnostics, supporting advanced power quality analysis. Fully compliant with IEC 60947-2, this unit delivers robust performance for both industrial and commercial installations.

Technical Specifications

• Model: C6337A570
• Type: Electronic Trip Unit with Earth Leakage Alarm & Energy Meter
• Brand: Schneider Electric
• Range: ComPacT NSX New Generation

Power & Performance

• Rated Current: 570 A at 40°C
• Poles: 3P (Three Poles)
• Protected Poles: 3D
• Trip Unit Technology: Electronic
• Operational Voltage: 440V AC 50/60Hz
• Trip Unit Protections: L (Long-Time), S (Short-Time), I (Instantaneous)
• Application: Distribution

Protection Functions

• Long-Time Protection (Overload): Adjustable 250A – 570A (9 settings)
• Long-Time Delay: Adjustable
  • 15 to 400s at 1.5 x Ir
  • 0.35 to 11s at 7.2 x Ir
  • 0.5 to 16s at 6 x Ir
• Thermal Memory: 20 minutes before and after tripping
• Short-Time Protection: Adjustable 1.5 to 10 x Ir
• Short-Time Delay: Adjustable
  • 0 to 0.4s (I²t OFF)
  • 0.1 to 0.4s (I²t ON)
• Instantaneous Protection: Adjustable 1.5 to 11 x In
• Earth Leakage Alarm:
  • Provides alarm (no trip) via terminal block
  • Sensitivity Adjustment Range: 0.3A / 0.5A / 1A / 3A / 5A / 10A
  • Time Delay: Adjustable (0 ms / 60 ms / 150 ms / 500 ms / 1 s)
  • Earth Leakage Mode: OFF using IΔn rotary switch
• Zone Selective Interlocking (ZSI): Not Available

Build & Design

• Mounting Mode: Fixed
• Local Signaling:
  • Flashing Green LED – Ready to operate
  • Red LED – Overload above 105% Ir
  • Orange LED – Overload above 90% Ir

C6337A570 Physical Specifications

• Gross Weight: 1.889 kg

Dimensions:

• Height: 16.9 cm
• Width: 21.1 cm
• Depth: 24.9 cm

Additional Features

• Operating Temperature: -25°C to 70°C
• Storage Temperature: -40°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: 352 kg CO₂-eq (Total Life Cycle)
• Recycled Metal Content: 0%

Key Features & Benefits

✅ Earth Leakage Alarm: Built-in detection sends an alarm without tripping, ensuring advanced monitoring and system safety.

✅ Integrated Energy Meter: LCD display provides real-time energy measurement and system optimization.

✅ Comprehensive Protection: Adjustable settings for overload, short-circuit, and earth leakage monitoring.

✅ Compact & Reliable: Perfect for standard and demanding applications on ComPacT NSX630 systems.

✅ EcoStruxure Power Ready: Compatible with PowerTag NSX for enhanced energy management and connectivity.

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