Product Description:
The CHINT NXM-125S/4300 100A 4-Pole MCCB provides comprehensive protection for 3-phase + neutral (4P) electrical systems in industrial, commercial, and infrastructure environments. Designed for efficient and safe operation, this MCCB features a 100A rated current and high breaking capacity of up to 36kA at 400V, ensuring fault protection in even the most demanding conditions.

Equipped with a fixed thermal-magnetic trip unit, it delivers consistent performance while offering full neutral disconnection. Built in a compact NXM-125 frame, it is ideal for applications where space is limited but reliability is essential.

Key Features:

• ✅ Rated Current: 100A

• ✅ 4 Poles (3P + N) – Full-phase and neutral protection

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

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

• ✅ Trip Unit: Fixed thermal-magnetic

• ✅ Push-to-Trip Button for manual test

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

• ✅ Compact and durable NXM-125 frame

Technical Specifications:

• Model: NXM-125S/4300

• Rated Current (In): 100A

• Poles: 4P (Three Phase + Neutral)

• Rated Insulation Voltage (Ui): 800V

• Rated Impulse Voltage (Uimp): 8kV

• Operating Voltage (Ue):

  • 230V: 50kA

  • 400V: 36kA

  • 415V: 36kA

• Breaking Capacity (Icu/Ics):

  • 230V: 50kA / 30kA

  • 400V: 36kA / 20kA

• Frequency: 50Hz / 60Hz

• Mounting: Fixed front connection

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

• Trip Unit Type: Thermal-magnetic (non-adjustable)

Applications:

• Balanced 3-phase systems with neutral

• Distribution boards for lighting & HVAC

• Commercial and industrial panels

• Generator & UPS protection

• Backup and main power panels