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Emerson Network Power > United States > Products > Power Switching and Controls > Power Transfer Switches > ASCO Series 300SE System Rating

300 Service Entrance System Rating

TS Frame	Switch Rating Amps	Short Circuit Current Rating Standard	Voltage
D	70-225 Amps	22K	480 V
E	250, 400 Amps	35K	480 V
J	600 Amps	50K	480 V
H	800, 1000, 1200 Amps	65K	480 V
G	1600, 2000 Amps	65K	480 V
G	2500, 3000 Amps	100K	480 V