Product Description:
The CHINT NXMLE-160S/4300 125A MCCB is a compact, heavy-duty 3-pole molded case circuit breaker equipped with built-in residual current (earth leakage) protection. With a rated current of 125A, this model is built for high-performance systems requiring both overcurrent and ground fault safety in one unit.

With adjustable earth leakage sensitivity (100mA, 200mA, 300mA) and a breaking capacity of 50kA at 230V, this MCCB is perfect for protecting sensitive 3-phase systems in industrial, commercial, or generator backup setups. It fully complies with IEC/EN 60947-2 and ensures peace of mind for both safety and operational reliability.

Key Features:

• ✅ Rated Current: 125A

• ✅ Poles: 3P (Three-phase)

• ✅ Earth Leakage Protection: Built-in (ELCB)

• ✅ Adjustable Sensitivity: 100mA / 200mA / 300mA

• ✅ Breaking Capacity: 50kA @ 230V / 36kA @ 400V

• ✅ Trip Unit: Fixed thermal-magnetic + residual current

• ✅ Push-to-Trip Test Button

• ✅ Complies with: IEC/EN 60947-2, CE, KEMA

• ✅ Frame: NXMLE-160S/4300 – High breaking class

Technical Specifications:

• Model: NXMLE-160S/4300

• Rated Current (In): 125A

• Poles: 3P

• Rated Insulation Voltage (Ui): 800V

• Rated Impulse Voltage (Uimp): 8kV

• Rated Operational Voltage (Ue):

  • 230V: 50kA

  • 400V: 36kA

• Breaking Capacity (Icu/Ics):

  • 230V: 50kA / 30kA

  • 400V: 36kA / 20kA

• Residual Operating Current (IΔn): 100 / 200 / 300mA (adjustable)

• Trip Curve: Type C

• Frequency: 50Hz / 60Hz

• Operating Temp: -25°C to +70°C

• Mounting Type: Fixed (front connection)

Applications:

• Generator and backup systems

• Industrial control and motor panels

• Commercial 3-phase power protection

• Data centers and server rooms

• Buildings with leakage risk zones

• Transformer input protection