Class RK1 fuses are used for applications where higher current limitation is required for improved component protection or system coordination. Amp-Trap 2000® A6D-R fuses provide IEC Type 2 No Damage protection to main, feeder and branch circuits for both motor and non-motor loads. A6D-R fuses feature time delay for motor inrush currents but will also open fast enough under extreme fault conditions preventing damage to motor starters, switches, and other circuit components. A6D-R fuses can replace older 600V Class K, H or RK5 fuses that are already installed in the field. Connexion has a knowledgeable team of product specialists that can assist you with finding the perfect fuse for your application today!