ABB XT4N 250 TMA 225-2250 4p Fixed MCCB – 1SDA068105R1 This ABB molded case circuit breaker (MCCB) from the XT4N series is equipped with a 250 frame and a TMA (thermal magnetic) trip unit with an adjustable current range from 225A to 2250A. It features 4p and a fixed mounting type, delivering dependable overload and short-circuit protection for industrial and commercial power distribution systems. In Rated at: F% Frame Size: 250 Trip Unit Type: TMA (Thermal Magnetic) Adjustable Range: 225–2250A Poles: 4p Mounting Type: Fixed In Rating: F% ABB ID: 1SDA068105R1