Schneider Electric Circuit Breaker 18662

Manufacturer: Schneider Electric
Designation: Circuit Breaker 125A C 4p NG125N
Type: 18662
Installation Depth: 47 mm
Tripping Characteristic: C
Number of Poles (total): 4
Number of Protected Poles: 4
Rated Current: 125 A
Rated Voltage: 400 V
Rated Insulation Voltage Ui: 690 V
Rated Impulse Voltage Uimp: 8 kV
Voltage Type: AC/DC
Rated Breaking Capacity Icu according to IEC 60947-2 at 230 V: 50 kA
Rated Breaking Capacity Icu according to IEC 60947-2 at 400 V: 25 kA
Frequency: 50..60 Hz
Flush Mounting: no
Switching Neutral Conductor: yes
Overvoltage Category: 4
Degree of Pollution: 3
Additional Devices Possible: yes
Width in Division Units: 6
Protection Class (IP): IP20
Ambient Temperature During Operation: -30..70 °C
Connectable Conductor Cross-Section Multi-Wire: 10..50 mm²
Connectable Conductor Cross-Section Single-Wire: 16..70 mm²
Explosion Protected: no

The Acti 9 NG125N circuit breaker has a rated current of 32A, a C characteristic, and an operating voltage (Ue) of 380-415V AC, as well as an insulation voltage (Ui) of 690V AC. It protects the circuit against short-circuit and overload currents. The tripping is indicated by the neutral position of the switch lever and a red mechanical display on the front of the device. A test button to check the tripping mechanism is available. The supply can be connected from the top or bottom. The spring mechanism allows for low-wear switching of the contacts. The technology of the tripping unit is thermomagnetic. Additionally, stackable auxiliary modules (optional) are available, which allow for the display of switching status, fault tripping, operating current tripping, undervoltage tripping, and overvoltage tripping. The NG125N circuit breaker complies with the standards IEC/EN 60947-2 and is VDE certified.