Fuses

Fuses are devices placed in series with a circuit to prevent damage from short circuit and overcurrent. A simple fuse consists of a conducting material inside a non combustible case. A certain amount of current is allowed to flow through the fuse. When a short circuit or overcurrent occurs, the heat will melt the conductive material, causing the circuit to open and the power supply to stop. Fuses can be classified into two main categories: AC fuses and DC fuses.

DC Fuses protect a DC circuit from short circuit and overcurrent. When an overcurrent in a DC circuit occurs and melts the metal wire, an electric arc is possible. To counteract this effect, the electrodes of the DC fuses are placed further apart. Thus, DC fuses are larger than AC fuses.

Rewireable fuses (AC) consist of a fuse base and a fuse carrier. When the fuse is blown due to overcurrent, the fuse carrier can be removed from the fuse base, with no risk of electric shock, and the fuse wire can be replaced.

Cartridge fuses (AC) are completely enclosed structures with the fuse links inside the container. There are two types of cartridge fuses: D-type cartridge fuses and Link type cartridge fuses. D-type cartridge fuses keep the cartridge (containing the fuse element) inside a fuse cap. When the fuse cap is inserted into the fuse base, using an adapter ring, and the tip of the cartridge touches the conductor, the circuit is compete. Link type cartridge fuses or high rupturing capacity fuses allow an overcurrent to flow through the fuse for a short, known time period. If the overcurrent is not resolved in the allotted time period, the fuse blows.

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$1945.18
Littelfuse Fuse KLPC500, 500 Amps, 600 Volts, UL Class L, Time Delay, Current Limiting, Physical Size: 2 " x 8 5/8", POWR-PRO® Performance, Mains, Feeders, Large motor control, AC Voltage Rating: 600, DC Voltage Rating: 480, Interrupting Rating: 200,000 AIC @ 600VAC, DC Interrupting Rating: 20,000 AIC, UL Listed, CSA Certified,
$1945.18
Littelfuse Fuse KLPC400, 400 Amps, 600 Volts, UL Class L, Time Delay, Current Limiting, Physical Size: 2 " x 8 5/8", POWR-PRO® Performance, Mains, Feeders, Large motor control, AC Voltage Rating: 600, DC Voltage Rating: 480, Interrupting Rating: 200,000 AIC @ 600VAC, DC Interrupting Rating: 20,000 AIC, UL Listed, CSA Certified,
$1945.18
Littelfuse Fuse KLPC250, 250 Amps, 600 Volts, UL Class L, Time Delay, Current Limiting, Physical Size: 2 " x 8 5/8", POWR-PRO® Performance, Mains, Feeders, Large motor control, AC Voltage Rating: 600, DC Voltage Rating: 480, Interrupting Rating: 200,000 AIC @ 600VAC, DC Interrupting Rating: 20,000 AIC, UL Listed, CSA Certified,
$27.50
Bussmann SC-60, 60 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 2.25",,, AC Voltage Rating: 480, DC Voltage Rating: 300, Interrupting Rating: 100,000 AIC RMS @ 480VAC, Interrupting Rating: 10,000A @300VDC, UL Listed, CSA Certified,
$34.96
Bussmann SC-50, 50 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 2.25",,, AC Voltage Rating: 480, DC Voltage Rating: 300, Interrupting Rating: 100,000 AIC RMS @ 480VAC, Interrupting Rating: 10,000A @300VDC, UL Listed, CSA Certified,
$34.96
Bussmann SC-45, 45 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 2.25",,, AC Voltage Rating: 480, DC Voltage Rating: 300, Interrupting Rating: 100,000 AIC RMS @ 480VAC, Interrupting Rating: 10,000A @300VDC, UL Listed, CSA Certified,
$28.17
Bussmann SC-40, 40 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 2.25",,, AC Voltage Rating: 480, DC Voltage Rating: 300, Interrupting Rating: 100,000 AIC RMS @ 480VAC, Interrupting Rating: 10,000A @300VDC, UL Listed, CSA Certified,
$30.17
Bussmann SC-35, 35 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 2.25",,, AC Voltage Rating: 480, DC Voltage Rating: 300, Interrupting Rating: 100,000 AIC RMS @ 480VAC, Interrupting Rating: 10,000A @300VDC, UL Listed, CSA Certified,
$20.14
Bussmann SC-30, 30 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 1.62",,, AC Voltage Rating: 480, DC Voltage Rating: 300, Interrupting Rating: 100,000 AIC RMS @ 480VAC, Interrupting Rating: 10,000A @300VDC, UL Listed, CSA Certified,
$35.76
Bussmann SC-25, 25 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 1.62",,, AC Voltage Rating: 480, DC Voltage Rating: 300, Interrupting Rating: 100,000 AIC RMS @ 480VAC, Interrupting Rating: 10,000A @300VDC, UL Listed, CSA Certified,
$13.12
Bussmann SC-20, 20 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 1.41",,, AC Voltage Rating: 600, DC Voltage Rating: 170, Interrupting Rating: 100,000 AIC RMS @ 600VAC, Interrupting Rating: 10,000A @170VDC, UL Listed, CSA Certified,
$10.77
Bussmann SC-15, 15 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 1.31",,, AC Voltage Rating: 600, DC Voltage Rating: 170, Interrupting Rating: 100,000 AIC RMS @ 600VAC, Interrupting Rating: 10,000A @170VDC, UL Listed, CSA Certified,
$21.09
Bussmann SC-12, 12 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 1.31",,, AC Voltage Rating: 600, DC Voltage Rating: 170, Interrupting Rating: 100,000 AIC RMS @ 600VAC, Interrupting Rating: 10,000A @170VDC, UL Listed, CSA Certified,
$18.44
Bussmann SC-10, 10 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 1.31",,, AC Voltage Rating: 600, DC Voltage Rating: 170, Interrupting Rating: 100,000 AIC RMS @ 600VAC, Interrupting Rating: 10,000A @170VDC, UL Listed, CSA Certified,
$24.04
Bussmann SC-8, 8 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 1.31",,, AC Voltage Rating: 600, DC Voltage Rating: 170, Interrupting Rating: 100,000 AIC RMS @ 600VAC, Interrupting Rating: 10,000A @170VDC, UL Listed, CSA Certified,
$24.93
Bussmann SC-7, 7 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 1.31",,, AC Voltage Rating: 600, DC Voltage Rating: 170, Interrupting Rating: 100,000 AIC RMS @ 600VAC, Interrupting Rating: 10,000A @170VDC, UL Listed, CSA Certified,
$18.44
Bussmann SC-6, 6 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 1.31",,, AC Voltage Rating: 600, DC Voltage Rating: 170, Interrupting Rating: 100,000 AIC RMS @ 600VAC, Interrupting Rating: 10,000A @170VDC, UL Listed, CSA Certified,
$18.44
Bussmann SC-5, 5 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 1.31",,, AC Voltage Rating: 600, DC Voltage Rating: 170, Interrupting Rating: 100,000 AIC RMS @ 600VAC, Interrupting Rating: 10,000A @170VDC, UL Listed, CSA Certified,
$21.25
Bussmann SC-4, 4 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 1.31",,, AC Voltage Rating: 600, DC Voltage Rating: 170, Interrupting Rating: 100,000 AIC RMS @ 600VAC, Interrupting Rating: 10,000A @170VDC, UL Listed, CSA Certified,
$21.57
Bussmann SC-3, 3 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 1.31",,, AC Voltage Rating: 600, DC Voltage Rating: 170, Interrupting Rating: 100,000 AIC RMS @ 600VAC, Interrupting Rating: 10,000A @170VDC, UL Listed, CSA Certified,
$21.57
Bussmann SC-2, 2 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 1.31",,, AC Voltage Rating: 600, DC Voltage Rating: 170, Interrupting Rating: 100,000 AIC RMS @ 600VAC, Interrupting Rating: 10,000A @170VDC, UL Listed, CSA Certified,
$21.57
Bussmann SC-1, 1 Amps, 600 Volts, UL Class G, Time Delay, Current Limiting, Physical Size: 0.41" x 1.31",,, AC Voltage Rating: 600, DC Voltage Rating: 170, Interrupting Rating: 100,000 AIC RMS @ 600VAC, Interrupting Rating: 10,000A @170VDC, UL Listed, CSA Certified,
$495.35
Bussmann LPN-RK-600SP, 600 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 2.88" x 10.38", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$574.15
Bussmann LPN-RK-500SP, 500 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 2.88" x 10.38", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$624.62
Bussmann LPN-RK-450SP, 450 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 2.88" x 10.38", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$302.52
Bussmann LPN-RK-400SP, 400 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 2.36" x 8.63", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$374.76
Bussmann LPN-RK-350SP, 350 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 2.36" x 8.63", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$367.93
Bussmann LPN-RK-300SP, 300 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 2.36" x 8.63", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$367.93
Bussmann LPN-RK-250SP, 250 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 2.36" x 8.63", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$367.93
Bussmann LPN-RK-225SP, 225 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 2.36" x 8.63", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$167.87
Bussmann LPN-RK-200SP, 200 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 1.61" x 7.13", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$203.94
Bussmann LPN-RK-175SP, 175 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 1.61" x 7.13", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$167.87
Bussmann LPN-RK-150SP, 150 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 1.61" x 7.13", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$167.87
Bussmann LPN-RK-125SP, 125 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 1.61" x 7.13", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$239.60
Bussmann LPN-RK-110SP, 110 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 1.61" x 7.13", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$76.27
Bussmann LPN-RK-100SP, 100 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 1.10" x 5.88", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$92.64
Bussmann LPN-RK-90SP, 90 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 1.10" x 5.88", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$76.27
Bussmann LPN-RK-80SP, 80 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 1.10" x 5.88", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$76.27
Bussmann LPN-RK-70SP, 70 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 1.10" x 5.88", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating:250, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$34.05
Bussmann LPN-RK-60SP, 60 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 0.81" x 3", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating: 125, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$34.05
Bussmann LPN-RK-50SP, 50 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 0.81" x 3", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating: 125, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$34.05
Bussmann LPN-RK-45SP, 45 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 0.81" x 3", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating: 125, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$34.05
Bussmann LPN-RK-40SP, 40 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 0.81" x 3", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating: 125, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$34.05
Bussmann LPN-RK-35SP, 35 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 0.81" x 3", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating: 125, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$18.50
Bussmann LPN-RK-30SP, 30 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 0.56" x 2", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating: 125, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$18.50
Bussmann LPN-RK-25SP, 25 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 0.56" x 2", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating: 125, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$18.50
Bussmann LPN-RK-20SP, 20 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 0.56" x 2", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating: 125, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,
$22.87
Bussmann LPN-RK-17-1/2SP, 17 1/2 Amps, 250 Volts, UL Class RK1, Time Delay, Current Limiting, Physical Size: 0.56" x 2", Dual Element, High in-rush current motor protection, AC Voltage Rating: 250, DC Voltage Rating: 125, Interrupting Rating: 300,000 AIC RMS @ 250VAC, DC Interrupting Rating: 100,000 AIC, UL Listed, CSA Certified,