Schneider C104MG100 TM100G Thermal-Magnetic Trip Unit

The C104MG100 Schneider is a TM100G thermal-magnetic trip unit engineered for reliable protection in low-voltage power distribution systems. Designed for use with ComPacT NSX100 and NSX160 circuit breakers, this unit supports 4-pole configurations and is rated for 100 A at 40 °C.

It features adjustable thermal overload protection and fixed magnetic short-circuit protection, ensuring robust defense against electrical faults. The unit’s 4D configuration provides full neutral protection, making it ideal for generator and backup power applications. Compliant with IEC 60947-2 standards, it delivers dependable performance in demanding environments.

Technical Specifications

• Model: C104MG100
• Type: TM100G Thermal-Magnetic Trip Unit
• Brand: Schneider Electric
• Range: ComPacT NSX New Generation

Power & Performance

• Rated Current: 100 A at 40°C
• Poles: 4P (Four Poles)
• Protected Poles: 4D
• Neutral Position: Left
• Trip Unit Technology: Thermal-Magnetic
• Application: Generator Protection
• Protection Functions:
  • L: Overload protection (thermal)
  • I: Short-circuit protection (magnetic)
• Rated Operational Voltage (Ue): 690V AC 50/60Hz / 750V DC
• Network Type: AC / DC
• Network Frequency: 50/60 Hz

Protection Settings

• Long-time (Thermal) Pick-Up Range (Ir): Adjustable from 0.7 to 1 x In
• Thermal Delay (tr): Fixed 120…400 s at 1.5 x In
• Neutral Protection Setting: 1 x Ir (4D)
• Instantaneous (Magnetic) Protection (Ii): Fixed at 320 A

C104MG100 Physical Specifications

• Gross Weight: 1.2 kg

Dimensions:

• Height: 16.0 cm
• Width: 10.0 cm
• Length: 16.0 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: -50°C to +85°C
• Carbon Footprint: 79 kg CO₂-eq (Total Life Cycle)
• Recycled Metal Content: 0%

Key Features & Benefits

✅ Reliable Generator Protection: Adjustable thermal protection and fixed magnetic protection

✅ Four-Pole Design: Includes neutral protection for balanced system safety

✅ Dual AC/DC Capability: Suitable for both AC and DC applications up to 750V DC

✅ EcoStruxure Ready: Compatible with PowerTag NSX for advanced energy monitoring and analytics

✅ Compact & Robust: Built for ComPacT NSX100/160 circuit breakers with excellent environmental resilience

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