Schneider Electric SE 18639 Circuit breaker NG125N 3p 63A C

Schneider Electric Circuit Breaker 18639

Manufacturer: Schneider Electric
Designation: Circuit Breaker 63A C 3p NG125N
Type: 18639
Installation Depth: 47 mm
Tripping Characteristic: C
Number of Poles (total): 3
Number of Protected Poles: 3
Rated Current: 63 A
Rated Voltage: 400 V
Rated Insulation Voltage Ui: 690 V
Rated Impulse Voltage Uimp: 8 kV
Type of Voltage: 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: no
Overvoltage Category: 4
Degree of Pollution: 3
Additional Devices Possible: yes
Width in Division Units: 4.5
Protection Class (IP): IP20
Ambient Temperature during Operation: -30..70 °C
Connectable Conductor Cross-Section Multi-Wire: 1..35 mm²
Connectable Conductor Cross-Section Single-Wire: 1.5..50 mm²
Explosion Protected: no

The Acti 9 NG125N circuit breaker has a rated current of 63 A and a C characteristic. The operating voltage is 380-415 V AC, and the insulation voltage is 690 V AC. It protects the circuit against short-circuit and overload currents. The tripping is indicated by the central position of the switch lever and a red mechanical display on the front of the device. A test button is available to check the tripping mechanism. The power supply can be connected from the top or bottom. The circuit breaker features a snap action for low-wear switching of contacts and utilizes a thermal-magnetic tripping unit. Additionally, stackable auxiliary modules (optional) are available to display the switching position, 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.