Acti9 NG125N is a low-voltage circuit breaker. It is a 4P circuit breaker with 4 protected poles, rated current of 125A and trip curve C. The rated short-circuit breaking capacity is up to 25 kA from 380VAC to 415VAC in accordance with EN/IEC 60947-2 and 25 kA from 380VAC to 415VAC in accordance with EN/IEC 60947-2. It complies with industrial standards EN/IEC 60898-1 and residential standards EN/IEC 60947-2.

This miniature circuit breaker protects circuits from short circuits and overload current. It is suitable for isolation in the industrial sector according to IEC/EN 60947-2. Trip on failure is indicated by a red mechanical indicator light on the front of the switch. It has an electrical resistance of up to 5000 cycles and a mechanical resistance of up to 20000 cycles.

The operating voltage Ue changes from 380VAC to 415V AC. The rated insulation voltage Ui is 690V AC. The rated impulse withstand voltage Uimp is 8 kV. The operating frequency is 50 Hz or 60 Hz. It is DIN rail installable. Its width is 12 steps of 9 mm. The pollution degree is 3. The overvoltage category is IV.

The total dimensions are (H) 108 mm x (W) 103 mm x (D) 81 mm. The weight is 0.96 kg. It has an IP20 degree of protection (according to IEC/EN 60529) on its terminals in a modular enclosure. The operating temperature is between -30°C and 70°C. The storage temperature is between -40°C and 70°C.

Curve C, trip threshold from 5 to 10 times In, for application of ohmic-inductive circuits with medium inrush currents. And widely used in domestic installations.

A circuit breaker is a safety device that can automatically (i.e., without external intervention) interrupt the flow of electric current in an electrical circuit in the event of an overcurrent.

Characteristics:

• Breaking capacity: 10 KA 20KA 25 KA - 50KA
• Rated operating voltage: 380/415V AC 50/60 Hz - 220/240V AC 50/60 Hz - 440V AC 50/60 Hz
• Local signaling ON/OFF indication
• Trip indicator
• Mounting bracket 35 mm symmetrical DIN rail
• 9 mm steps: 12
• Mechanical life: 20000 cycles
• Electrical life: 10000 cycles
• Tightening torque: 3.5 Nm
• Operating ambient temperature: -30/+70 °C
• Storage temperature -40/+70 °C