CIRCUIT-BREAKER VL 250 UL TYPE FG (CAT NO. NFK3T250) NON-INTERCHANGEABLE FRAME W. APPROBATION CIRCUIT-BREAKER ACC. UL489 STANDARD SWITCHING CAPACITY 3-POLE, NEMA RATING 35KA@480V AND 18KA@600/347V (MOLDED CASE CIRCUIT BREAKER) OVERCURRENT RELEASE ETU, LSI TU= 40 DEGR. CELSIUS IN=250A, RATED CURRENT ISD=1,5-10 X IR, II=11 X IN SHORT-CIRCUIT PROTECTION IR=70-250A OVERCURRENT REL. F. PLANT PROTECTION W/O CONNECTION ACCESSORIES AUXILIARY SWITCH KIT 2HS(1NO+1NC)