Acti9 NG125H 4P 40 A C Curve Automatic Circuit Breaker

Miniature automatic circuit breaker Acti9 NG125H, 4 poles, 40 A, C curve, designed to protect electrical circuits in installations for small businesses and small buildings. Offers thermal and magnetic protection with breaking capacity Icu up to 36 kA at 380–415 V AC, ensuring stability under overloads or short circuits.

Technical Specifications

• Number of poles: 4P
• Number of protected poles: 4
• Rated current [In]: 40 A at 40 °C
• Network type: AC
• Tripping unit technology: Thermal-magnetic
• Curve code: 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 ≤ 500 V DC
• Service breaking capacity [Ics]: 52.5 kA (75 %) at 220–240 V AC, 27 kA (75 %) at 380–415 V AC, 22.5 kA (75 %) at 440 V AC, 9 kA (75 %) at 500 V AC, 25 kA (100 %) at ≤ 500 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 x In ± 20%
• Usage category: A according to EN > 50 A
• Switching capacity: Yes according to EN > 50 A
• Supply frequency: 50/60 Hz
• Position indicator: Yes
• Local indications: On/off indication, trip 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: 108 mm
• Depth: 81 mm
• Weight: 0.96 kg
• Mechanical durability: 20000 cycles
• Electrical durability: 10000 cycles
• Lockable: With lock
• Locking options: Integrated lock
• Connections: Tunnel terminals 1.5…50 mm² rigid, 1…35 mm² flexible
• Stripping length: 20 mm
• Tightening torque: 3.5 N·m
• Earth leakage protection: Independent lock
• 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…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 exemptions information: Yes
• China RoHS regulation: Proactive China RoHS declaration
• WEEE: Must be disposed of through specific collection systems in the EU