Schneider C103TM025 ComPacT NSX100 Trip Unit 3P 25 A TMD

The Schneider Electric C103TM025 is a TMD thermal-magnetic trip unit designed for the ComPacT NSX100 circuit breaker series. Rated at 25 A at 40°C, it provides 3-pole protection combining thermal overload and instantaneous short-circuit functions for AC and DC power distribution applications.

Technical specifications:

• Commercial reference: C103TM025
• Manufacturer: Schneider Electric
• EAN:
• Series / range: ComPacT NSX100-250 new generation
• Product type: Trip unit
• Trip unit name: TM-D
• Trip unit technology: Thermal-magnetic
• Number of poles: 3P (3 protected poles)
• Trip unit rating: 25 A at 40°C
• Protection function: L (thermal overload) + I (short-circuit)
• Rated voltage [Ue]: 690 V AC 50/60 Hz / 750 V DC
• Network type: AC and DC
• Network frequency: 50/60 Hz
• Mounting mode: Fixed
• Long-time pick-up adjustment [Ir]: Adjustable 0.7-1 x In
• Long-time delay [tr]: Fixed - 120-400 s at 1.5 x In / 15 s at 6 x Ir
• Instantaneous pick-up [Ii]: Fixed - 300 A
• Differential protection: None
• 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
• Standard: EN/IEC 60947-2
• Weight: 436 g

Features and benefits:

• Thermal-magnetic technology delivers reliable overload and short-circuit protection in a single unit
• Adjustable long-time pick-up (0.7-1 x In) allows calibration to the protected circuit's actual load
• Compatible with both AC (up to 690 V) and DC (up to 750 V) networks for flexible deployment
• IP40 enclosure and pollution degree 3 rating suit industrial panel environments
• Wide operating temperature range (-25 to 70°C) supports demanding installation conditions
• Plastic-free and recycled-cardboard packaging as part of Schneider Electric's sustainability program

Applications:

• Electrical power distribution panels requiring 25 A branch protection
• Industrial switchboards using ComPacT NSX100 circuit breakers in AC or DC systems
• Retrofit or replacement trip unit for existing ComPacT NSX100 installations
• DC distribution systems such as renewable energy or battery storage switchgear up to 750 V DC

Compliant with EN/IEC 60947-2. Part of the Schneider Electric ComPacT NSX100-250 new generation range.

Also known as: Schneider C103TM025, Schneider Electric C103TM025, NSX100 TMD trip unit, ComPacT NSX thermal-magnetic protection unit.