Schneider Electric Circuit Breaker 18660

Manufacturer: Schneider Electric
Designation: Circuit Breaker 100A C 4p NG125N
Type: 18660
Installation Depth: 47 mm
Tripping Characteristic: C
Number of Poles (total): 4
Number of Protected Poles: 4
Rated Current: 100 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-Proof: no

The Acti 9 NG125N circuit breaker has a rated current of 20 A, a C characteristic, and an operating voltage (Ue) of 380-415 V AC. It protects the circuit against short-circuit and overload currents. The tripping is indicated by the middle position of the switch lever and a red mechanical display on the front of the device. A test button for checking the tripping mechanism is available. The supply can be connected from the top or bottom. The circuit breaker features a spring mechanism for low-wear switching of the contacts and uses a thermal-magnetic tripping unit.

Additionally, stackable auxiliary modules (optional) are available, allowing for the display of switching status, fault tripping, working current tripping, undervoltage tripping, and overvoltage tripping. The NG125N circuit breaker complies with the standards IEC/EN 60947-2 and is VDE certified.