Schneider C103TM050 ComPacT NSX100 Trip Unit 3P 50 A TMD

The Schneider Electric C103TM050 is a TMD trip unit designed for use with ComPacT NSX100/160 circuit breakers. This 3-pole thermomagnetic protection unit provides both overload (thermal) and short-circuit (instantaneous) protection, rated at 50 A at 40°C for power distribution applications.

Technical specifications:

• Commercial reference: C103TM050
• Manufacturer: Schneider Electric
• EAN:
• Series / range: ComPacT NSX100/160 (new generation)
• Trip unit name: TM-D
• Trip unit technology: Thermomagnetic
• Number of poles: 3P
• Protected poles: 3d
• Trip unit rating: 50 A at 40°C
• Rated voltage [Ue]: 690 V AC 50/60 Hz / 750 V DC
• Network type: AC / DC
• Network frequency: 50/60 Hz
• Mounting mode: Fixed
• Protection function: L (overload) + I (short-circuit)
• Long-time pick-up [Ir]: Adjustable, 0.7 to 1 x In
• Long-time delay [tr]: Fixed, 120 to 400 seconds at 1.5 x In; 15 seconds at 6 x Ir
• Instantaneous pick-up [Ii]: Fixed, 500 A
• Differential protection: None
• Standard: EN/IEC 60947-2
• Electric shock protection class: Class II
• Pollution degree: 3 per IEC 60947-1
• IP protection rating: IP40 per IEC 60529
• Operating temperature: -25 to 70°C
• Storage temperature: -50 to 85°C
• Weight: 412 g

Features and benefits:

• Thermomagnetic technology delivers reliable dual-function protection against both overload and short-circuit faults
• Adjustable long-time pick-up (Ir) from 0.7 to 1 x In allows fine-tuning of thermal protection threshold
• Compatible with both AC and DC networks up to 690 V AC and 750 V DC
• IP40 enclosure and Class II electric shock protection rating suit demanding industrial environments
• Wide operating temperature range (-25 to 70°C) ensures reliable performance across varied installation conditions

Applications:

• Power distribution panels requiring coordinated overload and short-circuit protection
• Industrial installations using ComPacT NSX100 or NSX160 circuit breakers in fixed mounting configurations
• AC and DC distribution systems in manufacturing, infrastructure, or commercial facilities
• Retrofit or replacement trip unit for existing ComPacT NSX100/160 frames

Compliant with EN/IEC 60947-2. Part of the Schneider Electric ComPacT NSX new generation range.

Also known as: Schneider C103TM050, Schneider Electric C103TM050, NSX100 TMD trip unit, ComPacT NSX thermomagnetic protection unit.