Schneider C103MA025 ComPacT NSX100 Trip Unit 3P 25 A MA

The Schneider Electric C103MA025 is a MA25 magnetic-only trip unit for ComPacT NSX100/160 circuit breakers, providing instantaneous overcurrent and short-circuit protection for motor applications. Rated at 25 A (at 65°C) with a 3-pole configuration, it offers 9 adjustable instantaneous protection settings across a 6...14 x In range, making it well-suited for motor protection in industrial environments.

Technical specifications:

• Commercial reference: C103MA025
• Manufacturer: Schneider Electric
• EAN:
• Series / range: ComPacT NSX100/160 new generation
• Product type: Trip unit
• Trip unit name: MA
• Trip unit technology: Current-based
• Application: Motor protection
• Number of poles: 3P
• Protected poles: 3d
• Protection function: I (short-circuit protection only)
• Trip unit rating: 25 A at 65°C
• Rated voltage [Ue]: 690 V AC 50/60 Hz
• Network type: AC
• Network frequency: 50/60 Hz
• Mounting mode: Fixed
• Instantaneous pick-up adjustment type: Ii
• Instantaneous pick-up range [Ii]: 6...14 x In (9 adjustment positions)
• 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...70°C
• Storage temperature: -50...85°C
• Weight: 398 g

Features and benefits:

• Magnetic-only (instantaneous) protection designed specifically for motor starting - eliminates nuisance tripping during inrush current
• 9 adjustable Ii settings from 6 to 14 x In provide flexible calibration for different motor characteristics
• Wide operating temperature range of -25...70°C suits demanding industrial environments
• IP40 protection rating per IEC 60529 guards against solid particle ingress
• Compatible with both ComPacT NSX100 and NSX160 new generation frames
• Plastic-free and recycled-cardboard packaging supports Schneider Electric sustainability commitments

Applications:

• Motor feeder protection in industrial motor control centers (MCCs)
• Direct-on-line and star-delta motor starters requiring short-circuit protection without thermal overload
• Machine tool and manufacturing equipment panels where motor protection is handled separately
• Industrial automation switchboards operating at up to 690 V AC

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

Also known as: Schneider C103MA025, Schneider Electric C103MA025, NSX100 MA25 trip unit, ComPacT NSX magnetic trip unit.