Acti9 NG125H 3P 25 A C Curve Automatic Circuit Breaker

Miniature automatic circuit breaker from the Acti9 NG125H range, designed to protect electrical circuits in industrial and commercial installations. With 3 poles and a rated current of 25 A at 40 °C, it is suitable for applications with current above 0.1 A. Features thermal-magnetic technology with C curve and breaking capacity up to 36 kA at 380–415 V AC, ensuring effective protection against overloads and short circuits.

Technical Features

• Number of poles: 3P
• Number of protected poles: 3
• Rated current [In]: 25 A at 40 °C
• Network type: AC
• Tripping curve: C
• Breaking capacity code: H
• Breaking capacity [Icu]: 12 kA at 500 V AC, 30 kA at 440 V AC, 36 kA at 380–415 V AC, 70 kA at 220–240 V AC, 25 kA at ≤375 V DC
• Service breaking capacity [Ics]: 52.5 kA (75 % of Icu) at 220–240 V AC, 27 kA (75 % of Icu) at 380–415 V AC, 22.5 kA (75 % of Icu) at 440 V AC, 9 kA (75 % of Icu) at 500 V AC, 25 kA (100 % of Icu) at ≤375 V DC
• Rated operating voltage [Ue]: 220–240 V AC, 380–415 V AC, 440 V AC, 500 V AC
• Rated insulation voltage [Ui]: 690 V AC
• Surge voltage withstand [Uimp]: 8 kV
• Magnetic trip limit: 8 × In ± 20%
• Contact position indicator: Yes
• Local indicators: Trip indicator, On/Off indication
• Control type: Manual trip test, Handle
• 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: 20 000 cycles
• Electrical durability: 10 000 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
• Tightening torque: 3.5 N·m
• Earth leakage protection: Independent block
• Compatibility code: NG125
• Protection degree IP: IP20
• Impact protection degree IK: IK05
• Contamination degree: 3
• Overvoltage category: IV
• Tropicalization: 2
• Relative humidity: 95 % at 55 °C
• Operating ambient temperature: -30 °C to 70 °C
• Storage ambient temperature: -40 °C to 70 °C
• Standards: Icu
• EU RoHS Directive: Compliant
• REACH compliant without SVHC: Yes
• Green Premium product