Schneider C1047A040 MicroLogic 7.2 E AL Electronic Trip Unit
The C1047A040 Schneider is a MicroLogic Vigi 7.2E AL trip unit designed for advanced protection and energy monitoring in low-voltage power systems. Built for use with ComPacT NSX100, NSX160, and NSX250 circuit breakers, it supports 4-pole configurations and is rated for 40 A at 40 °C.
It features LSIR protection (Long-time, Short-time, Instantaneous, and Earth Leakage Alarm) with adjustable thresholds and delays. The unit also includes energy metering functions and complies with IEC 60947-2 standards, making it ideal for demanding industrial and commercial environments.
Technical Specifications
- Model: C1047A040
- Type: MicroLogic 7.2 E AL Electronic Trip Unit with Earth-Leakage Alarm
- Brand: Schneider Electric
- Range: ComPacT NSX New Generation
Power & Performance
- Rated Current: 40 A at 40°C
- Poles: 4P (Four Poles)
- Protected Poles: 4D
- Trip Unit Technology: Electronic
- Application: Distribution
- Protection Functions:
- L: Long-time overload protection (adjustable)
- S: Short-time short-circuit protection (adjustable)
- I: Instantaneous short-circuit protection (adjustable)
- Rated Operational Voltage (Ue): 440V AC 50/60Hz
- Network Type: AC
- Network Frequency: 50/60 Hz
Advanced Protection Features
- Long-time Protection Range (Ir): 18…40 A (9 settings adjustable)
- Long-time Protection Delay (tr): Adjustable
- 15…400 s at 1.5 x Ir
- 0.35…11 s at 7.2 x Ir
- 0.5…16 s at 6 x Ir
- Short-time Protection Range (Isd): 1.5…10 x Ir (adjustable)
- Short-time Delay (tsd): Adjustable
- 0…0.4 s (I²t = off)
- 0.1…0.4 s (I²t = on)
- Instantaneous Protection (Ii): Adjustable (1.5…15 x In)
- Thermal Memory: 20 minutes before and after tripping
Neutral Protection Settings
- Settings: 0.5 x Ir (3D + N/2), 1 x Ir (4D), No protection (3D)
Integrated Earth-Leakage Alarm (No Trip)
- Class: Class A
- Sensitivity (IΔn): Adjustable – 0.03 A / 0.1 A / 0.3 A / 0.5 A / 1 A / 3 A / 5 A
- Time Delay (Δt): Adjustable – 0 ms / 60 ms / 150 ms / 500 ms / 1 s
- Earth-Leakage Specific Mode: OFF using the IΔn rotary switch
User Interface & Local Signaling
- Ready to Operate: Flashing Green LED
- Overload Indications:
- Orange LED at 90% Ir
- Red LED at 105% Ir
- Digital Display: LCD for energy metering, settings, and status
Communication & Measurement
- Type of Measurement: Energy Meter
- Data Communication Capabilities:
- Maximeters/minimeters
- Energy metering
- Demand current and power
- Power quality
- Maintenance indicators
- Instantaneous and demand values
- Earth leakage current
- Test reports
- Protection and alarm settings
- Time-stamped histories and event tables
C1047A040 Physical Specifications
- Gross Weight: 794 g
Dimensions:
- Height: 10.0 cm
- Width: 11.0 cm
- Length: 15.0 cm
Environmental Specifications
- Standards: EN/IEC 60947-2
- Shock Protection Class: Class II
- Pollution Degree: 3 (IEC 60947-1)
- IP Degree of Protection: IP40 (IEC 60529)
- Ambient Temperature for Operation: -25°C to +70°C
- Ambient Temperature for Storage: -40°C to +85°C
- Carbon Footprint: 10 kg CO₂-eq (Total Life Cycle)
- Recycled Metal Content: 0%
Key Features & Benefits
✅ Earth-Leakage Alarm Function: Detects leakage without tripping, ensuring continuous operation.
✅ Advanced Protection: Adjustable long-time, short-time, and instantaneous protections for reliable system security.
✅ Customizable Neutral Protection: Flexible settings including full, half, or no neutral protection.
✅ Intelligent Local Signaling: LED indicators for system status, overloads, and earth-leakage monitoring.
✅ LCD Display & Communication: Real-time energy monitoring, history logs, and diagnostic reports for enhanced power management.
✅ EcoStruxure Ready: Compatible with PowerTag NSX for full integration into Schneider’s smart power architecture.
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