Product Description:
The CHINT NXM-250S/3300 250A MCCB is a powerful and compact molded case circuit breaker built for high-demand electrical systems. With a breaking capacity of 36kA at 400V, this 3-pole breaker ensures reliable protection against overloads, short circuits, and electrical faults in industrial, commercial, and infrastructure environments.

Equipped with a thermal-magnetic trip unit, this MCCB offers fast fault response while maintaining steady operation under rated loads. It complies with IEC/EN 60947-2 standards and comes in a durable, compact frame suitable for space-limited panel installations.

Key Features:

• ✅ Rated Current: 250A

• ✅ High Breaking Capacity: 36kA at 400/415V

• ✅ Voltage Rating: Up to 800V AC

• ✅ Trip Mechanism: Fixed thermal-magnetic

• ✅ Pole Configuration: 3P (3-pole)

• ✅ Push-to-trip test function

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

• ✅ Durable and compact NXM-250 frame size

Technical Specifications:

• Model: NXM-250S/3300

• Rated Current (In): 250A

• Rated Insulation Voltage (Ui): 800V

• Rated Impulse Withstand Voltage (Uimp): 8kV

• Rated Frequency: 50Hz/60Hz

• Rated Operating Voltage (Ue):

  • 230V: 50kA

  • 240V: 50kA

  • 400V: 36kA

  • 415V: 36kA

• Rated Short-Circuit Breaking Capacity (Icu/Ics):

  • 230/240V: 50kA / 30kA

  • 400/415V: 36kA / 20kA

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

• Mounting: Fixed front connection

• Compliance: IEC 60947-2, GB/T 14048.2

• Dimensions: NXM250 frame

Applications:

• Main switchboards and power panels

• Industrial machines & motors

• HVAC and compressor systems

• Distribution boards in factories

• Backup generator circuit protection

• Commercial and building power grids