Miniature circuit breaker C60, UL489, 1P, 4A, D characteristic, 480Y/277V AC. Product range: C60 - Product or component type: Miniature circuit breaker. Device abbreviation: C60 UL489 - Network type: AC - Trip unit technology: thermomagnetic - Interrupting capacity: 10 kA AIR according to CSA - 277V AC, 10 kA AIR according to UL 489 - 277V AC, 10 kA Icu according to IEC 60947-2 - 277V AC.