Acti 9 NG125LMA 3P 4 A MA Curve Automatic Switch

Miniature automatic switch Acti 9 NG125LMA, designed for protection of three-phase circuits in industrial and small commercial applications. Its 3-pole configuration and rated current of 4 A at 40 °C allow safe operation in electrical installations with motor loads. It features magnetic technology with MA curve and breaking capacity up to 100 kA at 220...240 V AC, ensuring effective protection against overloads and short circuits.

Technical Specifications

• Number of poles: 3P
• Number of protected poles: 3
• Rated current [In]: 4 A at 40 °C
• Network type: AC
• Tripping unit technology: Magnetic
• Curve code: MA
• Breaking capacity code: L
• Breaking capacity [Icu]: 100 kA at 220...240 V AC 50/60 Hz, 40 kA at 440 V AC 50/60 Hz, 50 kA at 380...415 V AC 50/60 Hz, 15 kA at 500 V AC 50/60 Hz
• Service breaking capacity [Ics]: 75 kA (75 % of Icu) at 220...240 V AC, 37,5 kA (75 % of Icu) at 380...415 V AC, 30 kA (75 % of Icu) at 440 V AC, 11,25 kA (75 % of Icu) at 500 V AC
• Rated operating voltage [Ue]: 220...240 V AC, 380...415 V AC, 440 V AC, 500 V AC (50/60 Hz)
• Rated insulation voltage [Ui]: 690 V AC (50/60 Hz)
• Surge voltage withstand [Uimp]: 8 kV
• Magnetic link limit: 12 x In
• Usage category: A according to EN> 50 A
• Switching capacity: Yes according to EN> 50 A
• Frequency: 50/60 Hz
• Contact position indicator: Yes
• Local indicators: Trip indicator, On/Off indication
• Control type: Handle, manual trip test
• Mounting type: Adjustable clip
• Mounting support: Symmetrical 35 mm DIN rail
• Step size: 9 mm
• Height: 103 mm
• Width: 81 mm
• Depth: 81 mm
• Weight: 0,72 kg
• Mechanical durability: 20000 cycles
• Electrical durability: 10000 cycles
• Lockable: With lock
• Locking options: Integrated lock
• Connections - terminals: Tunnel-type terminals 1,5…50 mm² rigid, 1…35 mm² flexible
• Stripping length: 20 mm
• Torque: 3,5 N·m
• Earth leakage protection: Independent block
• Compatibility code: NG125
• Protection degree IP: IP20 according to EN/IEC 60529
• Impact protection degree IK: IK05 according to EN/IEC 62263
• Contamination degree: 3 according to EN/IEC 60664-1
• Overvoltage category: IV
• Tropicalization: 2 according to IEC 60068-1
• Relative humidity: 95 % at 55 °C
• Maximum operating altitude: 2000 m
• Operating ambient temperature: -30…70 °C
• Storage ambient temperature: -40…70 °C
• Standards: Icu
• Sustainable offering status: Green Premium product
• Compliant with REACh without SVHC: Yes
• EU RoHS Directive: Compliant
• Free of toxic heavy metals: Yes
• Mercury-free: Yes
• RoHS exemption information: Yes
• China RoHS regulation: Proactive China RoHS declaration (outside legal scope of China RoHS)
• WEEE: In the European Union market, the product must be disposed of according to a specific waste collection system and never end up in a general waste bin