The ABB XT3N 250 TMD 250-2500 3p F F is a 3-pole moulded case circuit breaker (MCCB) with a rated current of 250A and a breaking capacity of 36kA at 415V AC. It features a thermomagnetic trip unit with an adjustable overload protection range of 175–250A and a fixed short-circuit protection setting of 2500A. Designed for reliable performance, it complies with IEC 60947-2 standards and is suitable for industrial and commercial power distribution applications.

Key Specifications

• Model: XT3N 250 TMD 250-2500 3p F F

• Rated Current (In): 250 A

• Rated Voltage (Ur): 690 V AC / 500 V DC

• Rated Insulation Voltage (Ui): 800 V

• Rated Impulse Withstand Voltage (Uimp): 8 kV

• Rated Operational Voltage: 690 V AC / 500 V DC

• Rated Uninterrupted Current (Iu): 250 A

• Rated Instantaneous Short-Circuit Current Setting (Ii): 2500 A

• Rated Service Short-Circuit Breaking Capacity (Ics):

  • 220–240 V AC: 37.5 kA

  • 380–415 V AC: 27 kA

  • 440 V AC: 18.75 kA

  • 500 V AC: 15 kA

  • 525 V AC: 9.75 kA

  • 690 V AC: 3.75 kA

• Rated Ultimate Short-Circuit Breaking Capacity (Icu):

  • 220–240 V AC: 37.5 kA

  • 380–415 V AC: 27 kA

  • 440 V AC: 18.75 kA

  • 500 V AC: 15 kA

  • 525 V AC: 9.75 kA

  • 690 V AC: 3.75 kA

• Release Type: Thermomagnetic (TMD)

• Number of Poles: 3

• Terminal Type: Fixed front terminals with bolt connection

• Frame Size: XT3N 250

• Standards Compliance: IEC 60947-2