ABB A2N 250 TMF 125-1250 3p F F – 1SDA066781R1 This ABB molded case circuit breaker (MCCB) from the A2N series is equipped with a 250A frame and a thermal magnetic trip unit (TMF) adjustable from 125A to 1250A. 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: 125–1250A Poles: 3P Mounting Type: Fixed ABB ID: 1SDA066781R1