Technical Parameters
Parameter Specification
Rated Current (In) 200 A (trip unit setting max)
Frame Size 250 A
Number of Poles 3P
Trip Unit Type Thermomagnetic Adjustable (TMA)
Current Setting Range ~140 – 200 A (adjustable)
Rated Operational Voltage 690 V AC / 500 V DC
Rated Insulation Voltage (Ui) 1000 V
Rated Impulse Withstand Voltage (Uimp) 8 kV
Rated Uninterrupted Current (Iu) 250 A
Rated Ultimate Short‑Circuit Breaking Capacity (Icu) ~50 kA at 380–400 V AC
Rated Service Short‑Circuit Breaking Capacity (Ics) ~50 kA at 380–400 V AC
Electrical Durability ~8,000 operations
Mechanical Durability ~25,000 operations
Terminal Connection Front terminals (bolted)
Standards Compliance IEC 60947‑2
ABB XT4S 250 TMA 200‑2000 3P FFThis is a low‑voltage molded case circuit breaker (MCCB) designed for protection of electrical distribution, motors, and equipment against overloads and short circuits. The adjustable thermomagnetic trip unit (TMA) allows current settings in a specified range, making it suitable for selective protection in industrial, commercial, and infrastructure applications.