ABB A2C 250 TMF 175-1750 3p F F – 1SDA066777R1 This ABB molded case circuit breaker (MCCB) from the A2C series is equipped with a 250A frame and a thermal magnetic trip unit (TMF) adjustable from 175A to 1750A. It has 3 poles and a fixed mounting configuration, ensuring high-performance overload and short-circuit protection for demanding industrial and commercial applications. Frame Size: 250A Trip Unit Type: TMF (Thermal Magnetic) Adjustable Range: 175–1750A Poles: 3P Mounting Type: Fixed ABB ID: 1SDA066777R1