Bussmann's UL Class RK5 Fusetron product offering provides energy efficient advanced protection with its dual-element, time-delay construction and is available with optional open fuse indication on select ratings. Available in both 250Vac and 600Vac, 200kA RMS Sym interrupting rating and sizes ranging from 0 to 600 amp. Fusetron's deliver 10 seconds (minimum) of time-delay at 500 of rated current (8 seconds for 1/10-30A sizes).

Current limiting provides component short-circuit protectionInsulated end caps for 225A-600A fuses reduces exposure to live parts and extends air gap to distance between blades of adjacent mounted fuses or to housingSuperior overload and cycling capabilitiesSeparate overload and short-circuit elements provide time delay for sizing as close as 125 of motor FLA while delivering excellent short-circuit protection2:1 selective coordination amp ratio (within the Bussmann series RK5 fuse family) prevents overcurrent events from opening upstream Fusetron fuses

Power PanelboardsMotor Control CentersMachinery DisconnectsCombination StartersMains and branch circuits

Insulated end caps for 225A-600A fuses reduces exposure to live parts and extends air gap to distance between blades of adjacent mounted fuses or to housing2:1 selective coordination amp ratio (within the Cooper Bussmann RK5 fuse family) prevents overcurrent events from opening upstream Fusetron fusesCurrent limiting provides component short-circuit protectionSeparate overload and short-circuit elements provide time delay for sizing as close as 125 of motor FLA while delivering excellent short-circuit protectionSuperior overload and cycling capabiliites