The NG125 H 4C 63 is a four-pole, high breaking capacity miniature circuit breaker (MCB) from Schneider Electric's Multi9 (Acti9) series. It is designed for the protection of electrical circuits against overloads and short circuits in residential, commercial, and industrial installations.
Specifications:
Parameter Specification
Product Range Multi9 / Acti9 (Circuit Protection)
Device Type Miniature Circuit Breaker (MCB)
Number of Poles 4 Poles (4P)
Rated Current (In) 63 A
Tripping Characteristic Curve C-Curve (Instantaneous trip range: 5 to 10 x In). Suitable for general applications with moderate inrush currents.
Rated Operational Voltage (Ue) 400V AC (3P+N)
Rated Insulation Voltage (Ui) 500V AC
Breaking Capacity (Icu / Ics) High (H): Typically 10 kA at 400V AC (IEC 60898) / 22 kA at 240V AC (UL 489). Always verify the exact value for your specific standard and voltage.
Tripping Mechanism Thermal-magnetic (Bimetallic strip for overload, solenoid for short-circuit).
Standard(s) IEC/EN 60898-1 (and may also comply with IEC/EN 60947-2 for industrial use).
Mounting DIN Rail Mount (35mm)
Terminal Type Screw terminals, suitable for rigid or flexible conductors.
Electrical Life Typically > 10,000 cycles.
Mechanical Life Typically > 20,000 cycles.