250A Noark Enclosed Moulded Case Circuit Breaker (MCCB), UL 489 listed, Ex9M2 series, 3-poles (3P3d), Rated current: 250A, Interrupting capacity: 14kA (600Vac), Lugs on both load and line sides (3-wires), Thermal-Magnetic (adjustable) (AT/AM (Adjustable Thermal / Adjustable Magnetic)), Trip unit: NEMA 1, equivalent to E01XNM2S250T3L