ABB XT4N 250 TMA 250-2500 4p F F InN=50% MCCB – 1SDA068106R1 This ABB molded case circuit breaker (MCCB) features a 250A frame and a TMA (thermal magnetic) trip unit with an adjustable current range from 250A to 2500A. It includes 4 poles and is designed for fixed mounting, offering reliable overload and short-circuit protection for a wide range of industrial and commercial applications. InN setting: 50%. Frame Size: 250A Trip Unit Type: TMA (Thermal Magnetic) Adjustable Range: 250–2500A Poles: 4P Mounting Type: Fixed InN Setting: 50% ABB ID: 1SDA068106R1