Schneider C103TM040 ComPacT NSX100 Trip Unit 3P 40 A TMD

The Schneider Electric C103TM040 is a TM-D thermomagnetic trip unit designed for use with ComPacT NSX100/160 circuit breakers, rated at 40 A at 40 °C across 3 poles. It provides overload (thermal) and short-circuit (instantaneous) protection for power distribution applications on both AC and DC networks up to 690 V AC and 750 V DC.

Technical specifications:

• Commercial reference: C103TM040
• Manufacturer: Schneider Electric
• EAN:
• Series / range: ComPacT NSX100/160 new generation
• Product type: Trip unit
• Trip unit name: TM-D
• Trip unit technology: Thermomagnetic
• Number of poles: 3P
• Protected poles: 3d
• Trip unit rating: 40 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
• Protection function: L (overload) + I (short-circuit)
• Long-time pick-up adjustment [Ir]: Adjustable, 0.7 to 1 x In
• Long-time delay [tr]: Fixed, 120 to 400 s at 1.5 x In / 15 s at 6 x Ir
• Instantaneous pick-up [Ii]: Fixed, 500 A
• Differential protection: None
• Mounting: Fixed
• 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: 417.7 g

Features and benefits:

• Thermomagnetic protection combines thermal overload and magnetic short-circuit trip in a single unit
• Adjustable long-time pick-up [Ir] from 0.7 to 1 x In allows calibration to specific circuit requirements
• Compatible with ComPacT NSX100 and NSX160 new generation circuit breakers, including DC variants
• Rated for both AC and DC networks, supporting versatile installation in modern power systems
• IP40 protection and pollution degree 3 rating suit industrial panel environments
• Wide operating temperature range of -25 to 70 °C ensures reliable performance across demanding conditions

Applications:

• Power distribution boards in industrial and commercial installations
• Protection of outgoing feeders in low-voltage switchgear assemblies
• DC power distribution systems requiring combined overload and short-circuit protection
• Retrofit or replacement trip unit in existing ComPacT NSX100/160 circuit breaker frames

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

Also known as: Schneider C103TM040, Schneider Electric C103TM040, NSX100 trip unit 40A, ComPacT NSX thermomagnetic trip unit.