Specifications:

Type: Thermal Magnetic, Molded Case
Voltage Rating: 277 Volt
Current Rating: 20 Ampere at 40 Deg C
Number of Poles: 1
Interrupting Rating: 100 Kiloamp at 120 Volt AC (UL 489), 85 Kiloamp at 240 Volt AC (UL 489), 35 Kiloamp at 277 Volt AC/125/250 Volt DC (UL 489), 22 Kiloamp at 347 Volt AC (UL 489), 85 Kiloamp at 240 Volt AC (IEC), 35 Kiloamp at 250 Volt DC (IEC)
Used On: P1/P2/P3/P4/P5 Panelboard
Approval: UL 489, CSA, IEC 60947-2