| Type | Assorted Fuse | Number of Poles | Rated Insulation Voltage (V) | Conventional Heating Current (A) | 
| RT18L-63 | 14 x 51 | 1 | 690 | 63 | 
| RT18L-125 | 22 x 58 | 1 | 690 | 125 | 
                                         
| Type | Assorted Fuse | Number of Poles | Rated Insulation Voltage (V) | Conventional Heating Current (A) | 
| RT18L-63 | 14 x 51 | 1 | 690 | 63 | 
| RT18L-125 | 22 x 58 | 1 | 690 | 125 |