Product Description:
The CHINT NXM-125S/4300 4-Pole 63A MCCB delivers reliable protection for three-phase + neutral (4P) systems, commonly used in balanced electrical installations for commercial, industrial, and infrastructure projects. With a breaking capacity of up to 36kA at 400V, this MCCB offers superior performance in a compact NXM125 frame.

Equipped with a thermal-magnetic trip unit, it safeguards circuits against both overloads and short circuits. The 4-pole configuration ensures full-phase and neutral protection, making it ideal for sensitive and mission-critical loads requiring neutral disconnection.

Key Features:

• ✅ Rated Current: 63A

• ✅ 4-Pole Protection (3P + N) – Complete circuit isolation

• ✅ Breaking Capacity: 36kA @ 400/415V

• ✅ Voltage Rating: Up to 800V AC (Ui)

• ✅ Trip Unit: Fixed thermal-magnetic

• ✅ Push-to-trip Test Function

• ✅ Compliance: IEC/EN 60947-2, CE, EAC, KEMA certified

• ✅ Compact Size: NXM-125 Frame for easy panel integration

Technical Specifications:

• Model: NXM-125S/4300

• Rated Current (In): 63A

• Poles: 4P (3-phase + neutral)

• Rated Insulation Voltage (Ui): 800V

• Rated Impulse Voltage (Uimp): 8kV

• Rated Operating Voltage (Ue):

  • 230V: 50kA

  • 400V: 36kA

  • 415V: 36kA

• Frequency: 50Hz / 60Hz

• Breaking Capacity (Icu/Ics):

  • 230V: 50kA / 30kA

  • 400V: 36kA / 20kA

• Operating Temperature: -25°C to +70°C

• Mounting Style: Fixed front connection

• Trip Mechanism: Thermal-magnetic (non-adjustable)

Ideal Applications:

• Commercial and residential 3-phase systems

• Balanced loads with neutral protection

• HVAC and lighting panels

• Distribution boards

• Industrial automation setups

• Power panels with critical neutral loads