Classes
| Class-CC | 600V to 30A ir200kA cylindrical 10x38mm with bulb shape one end | |
| Class-G | 300V to 60A ir100kA cylindrical varying lengths - 10mm diameter | |
| Class-H | 250V and 600V to 600A ir10kA *NEC dimensions | |
| Class-J | 600V to 600A ir200kA, fast-acting or time-delay, AC or DC | |
| Class-K | 250V and 600V to 600A ir50kA to 200kA *NEC dimensions | |
| Class-L | 600V 601A to 6,000A current-limiting, AC or DC, ir200kA, Bolt tags | |
| Class-R | 250V and 600V to 600A ir200kA *NEC dimensions with rejection feature | |
| Class-RK | Ferrule grooved end or knife blade prevents interchanging other styles | |
| Class-T | 300V 1200A and 600V 600A current-limiting ir200kA, fast-acting, AC or DC | |
| *NEC (National Electric Code) dimensions, also referred to as Code Dimensions | ||