Schneider C163TM125 ComPacT NSX160 Trip Unit 3P 125 A TMD

The Schneider Electric C163TM125 is a TM125D thermomagnetic trip unit designed for ComPacT NSX160/250 circuit breakers, providing overload and short-circuit protection for 3-pole configurations. Rated at 125 A at 40°C with a 690 V AC operating voltage, it delivers reliable thermal and magnetic protection for electrical distribution systems.

Technical specifications:

• Commercial reference: C163TM125
• Manufacturer: Schneider Electric
• EAN:
• Series / range: ComPacT NSX new generation (NSX160, NSX250)
• Product type: Trip unit
• Trip unit name: TM-D
• Trip unit technology: Thermomagnetic
• Number of poles: 3P
• Protected poles: 3d
• Trip unit rating: 125 A at 40°C
• Rated voltage [Ue]: 690 V AC 50/60 Hz
• Network type: AC
• Network frequency: 50/60 Hz
• Mounting mode: Fixed
• Protection function: L (overload/thermal), I (short-circuit)
• Long-time pick-up [Ir] adjustment: 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, 1250 A
• Differential protection: None
• Standard: EN/IEC 60947-2
• Electrical shock protection class: Class II
• Pollution degree: 3 per IEC 60947-1
• IP rating: IP40 per IEC 60529
• Operating temperature: -25 to 70°C
• Storage temperature: -50 to 85°C
• Package weight: 398 g

Features and benefits:

• Thermomagnetic protection combines thermal overload and instantaneous short-circuit response in a single unit
• Adjustable long-time pick-up (Ir) from 0.7 to 1 x In allows calibration to load requirements
• Fixed instantaneous protection at 1250 A ensures fast fault clearance without nuisance tripping
• IP40 enclosure and pollution degree 3 rating suit industrial panel environments
• Compatible with both ComPacT NSX160 and NSX250 new generation circuit breakers

Applications:

• Electrical power distribution panels requiring overload and short-circuit protection
• Industrial switchboards using ComPacT NSX160 or NSX250 circuit breaker frames
• Commercial and industrial installations operating on AC networks up to 690 V
• Retrofit or replacement of trip units in existing ComPacT NSX new generation installations

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

Also known as: Schneider C163TM125, Schneider Electric C163TM125, NSX trip unit TM125D, ComPacT NSX thermomagnetic trip unit 125A.