This refers to the C60 series miniature circuit breakers within the Multi 9 range, which are UL Listed under Standard UL 1077 (Supplementary Protectors for Use in Electrical Equipment).
Parameter Specification
Series Multi 9 C60
UL Standard UL 1077 (Supplementary Protector)
Poles 1P, 2P, 3P
Rated Current (In) 0.5A to 63A
Rated Voltage 120/240V AC, 240V AC, 480V AC/DC etc. (depending on specific model)
Breaking Capacity (Icn) Typically 10kA to 22kA (at specified voltage)
Trip Curve C (Common), D, K, Z curves available
Applications Equipment Protection (Industrial Control Panels, Machinery, HVAC)