Class RK1 Fuses

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Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 25A Ferrule SmartSpot
MFR: Mersen
MFR #: A6D25R
UPC: 782001991852
Item #: 49157
In Stock -
$53.56 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 100A Blade SmartSpot
MFR: Mersen
MFR #: A6D100R
UPC: 782001992118
Item #: 154806
In Stock -
$190.08 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 80A Blade SmartSpot
MFR: Mersen
MFR #: A6D80R
UPC: 782001992095
Item #: 40111
Available to Order
$190.08 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 20A Ferrule SmartSpot
MFR: Mersen
MFR #: A6D20R
UPC: 782001991845
Item #: 80055
In Stock -
$53.56 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 70A Blade SmartSpot
MFR: Mersen
MFR #: A6D70R
UPC: 782001992071
Item #: 76282
In Stock -
$190.08 each
Availability
Location Available Qty
Clearance
Fuse A2D-R - Class RK1 - Time-Delay 250VAC 250VDC 15A Ferrule SmartSpot
Mersen
Fuse A2D-R - Class RK1 - Time-Delay 250VAC 250VDC 15A Ferrule SmartSpot
MFR: Mersen
MFR #: A2D15R
UPC: 782001990824
Item #: 141185
In Stock -
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 6A Ferrule
MFR: Mersen
MFR #: A6D6R
UPC: 782001991753
Item #: 143257
Available to Order
$60.78 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 5A Ferrule
MFR: Mersen
MFR #: A6D5R
UPC: 782001991739
Item #: 24008
Available to Order
$60.78 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 35A Ferrule SmartSpot
MFR: Mersen
MFR #: A6D35R
UPC: 782001992002
Item #: 145473
Available to Order
$92.06 each
Availability
Location Available Qty
Mersen
Fuse A2D-R - Class RK1 - Time-Delay 250VAC 250VDC 20A Ferrule SmartSpot
MFR: Mersen
MFR #: A2D20R
UPC: 782001990848
Item #: 200773
Available to Order
$27.82 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 300A Blade SmartSpot
MFR: Mersen
MFR #: A6D300R
UPC: 782001992231
Item #: 190711
Available to Order
$760.22 each
Availability
Location Available Qty
Clearance
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 90A Blade SmartSpot
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 90A Blade SmartSpot
MFR: Mersen
MFR #: A6D90R
UPC: 782001992101
Item #: 212077
In Stock -
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 125A Blade SmartSpot
MFR: Mersen
MFR #: A6D125R
UPC: 782001992156
Item #: 82016
Available to Order
$380.22 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 8A Ferrule SmartSpot
MFR: Mersen
MFR #: A6D8R
UPC: 782001991784
Item #: 49880
In Stock -
$60.78 each
Availability
Location Available Qty
Mersen
Fuse A2D-R - Class RK1 - Time-Delay 250VAC 250VDC 600A Blade SmartSpot
MFR: Mersen
MFR #: A2D600R
UPC: 782001991203
Item #: 250013
Available to Order
$743.48 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 40A Ferrule SmartSpot
MFR: Mersen
MFR #: A6D40R
UPC: 782001992019
Item #: 55988
In Stock -
$92.06 each
Availability
Location Available Qty
Mersen
Fuse A2D-R - Class RK1 - Time-Delay 250VAC 250VDC 5A Ferrule
MFR: Mersen
MFR #: A2D5R
UPC: 782001990732
Item #: 126426
Available to Order
$37.76 each
Availability
Location Available Qty
Mersen
Fuse A2K-R - Class RK1 - Fast-Acting 250VAC 250VDC 100A Blade
MFR: Mersen
MFR #: A2K100R
UPC: 782001915223
Item #: 171811
In Stock -
$301.14 each
Availability
Location Available Qty
Mersen
Fuse A2D-R - Class RK1 - Time-Delay 250VAC 250VDC 100A Blade SmartSpot
MFR: Mersen
MFR #: A2D100R
UPC: 782001991012
Item #: 29697
Available to Order
$120.17 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 45A Ferrule SmartSpot
MFR: Mersen
MFR #: A6D45R
UPC: 782001992026
Item #: 172380
Available to Order
$92.06 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 250A Blade SmartSpot
MFR: Mersen
MFR #: A6D250R
UPC: 782001992224
Item #: 239488
Available to Order
$760.22 each
Availability
Location Available Qty
Mersen
Fuse A2K-R - Class RK1 - Fast-Acting 250VAC 250VDC 60A Ferrule
MFR: Mersen
MFR #: A2K60R
UPC: 782001915162
Item #: 38909
Available to Order
$141.34 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 110A Blade SmartSpot
MFR: Mersen
MFR #: A6D110R
UPC: 782001992149
Item #: 115646
Available to Order
$380.22 each
Availability
Location Available Qty
Mersen
Fuse A2D-R - Class RK1 - Time-Delay 250VAC 250VDC 200A Blade SmartSpot
MFR: Mersen
MFR #: A2D200R
UPC: 782001991081
Item #: 81793
Available to Order
$252.44 each
Availability
Location Available Qty
Mersen
Fuse A2D-R - Class RK1 - Time-Delay 250VAC 250VDC 70A Blade SmartSpot
MFR: Mersen
MFR #: A2D70R
UPC: 782001990985
Item #: 29092
Available to Order
$114.48 each
Availability
Location Available Qty
Mersen
Fuse A2D-R - Class RK1 - Time-Delay 250VAC 250VDC 30A Ferrule SmartSpot
MFR: Mersen
MFR #: A2D30R
UPC: 782001990862
Item #: 100306
Available to Order
$30.25 each
Availability
Location Available Qty
Mersen
Fuse A2D-R - Class RK1 - Time-Delay 250VAC 250VDC 150A Blade SmartSpot
MFR: Mersen
MFR #: A2D150R
UPC: 782001991067
Item #: 77461
Available to Order
$252.44 each
Availability
Location Available Qty
Mersen
Fuse A2D-R - Class RK1 - Time-Delay 250VAC 250VDC 60A Ferrule SmartSpot
MFR: Mersen
MFR #: A2D60R
UPC: 782001990947
Item #: 48855
Available to Order
$53.00 each
Availability
Location Available Qty
Mersen
Fuse A2K-R - Class RK1 - Fast-Acting 250VAC 250VDC 175A Blade
MFR: Mersen
MFR #: A2K175R
UPC: 782001915285
Item #: 207368
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 7A Ferrule
MFR: Mersen
MFR #: A6D7R
UPC: 782001991777
Item #: 252097
Available to Order
$63.88 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 150A Blade SmartSpot
MFR: Mersen
MFR #: A6D150R
UPC: 782001992163
Item #: 90344
Available to Order
$380.22 each
Availability
Location Available Qty
Mersen
Fuse A6K-R - Class RK1 - Fast-Acting 600VAC 300VDC 60A Ferrule
MFR: Mersen
MFR #: A6K60R
UPC: 782001915674
Item #: 462462
Available to Order
$152.82 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 12A Ferrule SmartSpot
MFR: Mersen
MFR #: A6D12R
UPC: 782001991814
Item #: 2194
In Stock -
$60.78 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 400A Blade SmartSpot
MFR: Mersen
MFR #: A6D400R
UPC: 782001992255
Item #: 42209
Available to Order
$760.22 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 4A Ferrule
MFR: Mersen
MFR #: A6D4R
UPC: 782001991715
Item #: 23266
Available to Order
$60.78 each
Availability
Location Available Qty
Mersen
Fuse A2D-R - Class RK1 - Time-Delay 250VAC 250VDC 400A Blade SmartSpot
MFR: Mersen
MFR #: A2D400R
UPC: 782001991159
Item #: 20230
Available to Order
$494.52 each
Availability
Location Available Qty
Mersen
Fuse A6D-R - Class RK1 - Time-Delay 600VAC 600VDC 2.5A Ferrule
MFR: Mersen
MFR #: A6D2-1/2R
UPC: 782001991661
Item #: 146797
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Mersen
Fuse A2K-R - Class RK1 - Fast-Acting 250VAC 250VDC 125A Blade
MFR: Mersen
MFR #: A2K125R
UPC: 782001915261
Item #: 170359
Available to Order
Phone: 1-855-999-2372 Email Contact Us
Availability
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Littelfuse
The all-new LLSRK_ID series fuse is the most advanced Class RK1 fuse available today providing unparalleled performance and protection to modern circuits. The patented Indicator technology provides instant identification of a blown fuse greatly enhancing system up time, while the precision formed short circuit elements virtually eliminate damage to components from unexpected electrical faults. In addition, the all new solid-state overload section has no moving parts, stopping unnecessary fatigue failures commonly found in other spring loaded fuses.
MFR: Littelfuse
MFR #: LLSRK04.5ID
UPC: 079458055160
Item #: 1376208
Available to Order
$65.88 each
Availability
Location Available Qty
Littelfuse
KLSR series RK1 fuses were the earliest type of current-limiting fuse developed. Their single-element, silver link design enables them to provide fast-acting overload and short-circuit protection. When used to protect inductive loads such as motors, solenoids, and transformers, KLSR series fuses must be greatly oversized to prevent opening the fuses on harmless inrush currents. In such applications, KLSR series fuses may only provide short-circuit protection. We recommend using POWR-PRO LLNRK/LLSRK series RK1, dual-element, time-delay fuses in all new applications requiring the current-limiting ability of UL Class RK1 fuses, or in existing applications where fast-acting RK1 or RK5 fuses have been opening on harmless system surges such as motor starting currents.
MFR: Littelfuse
MFR #: KLSR030
UPC: 079458290738
Item #: 1482428
Available to Order
$176.08 each
Availability
Location Available Qty
Littelfuse
RK1 fuses are extremely current-limiting fuses meaning they greatly reduce or eliminate damage to circuits and equipment under short-circuit conditions. Replacing existing Class H, K and RK5 fuses with RK1 fuses is one of the easiest ways to immediately improve the protection of plant workers and equipment.
MFR: Littelfuse
MFR #: LLSRK175
UPC: 079458350876
Item #: 1572367
Available to Order
$974.30 each
Availability
Location Available Qty
Littelfuse
RK1 fuses are extremely current-limiting fuses meaning they greatly reduce or eliminate damage to circuits and equipment under short-circuit conditions. Replacing existing Class H, K and RK5 fuses with RK1 fuses is one of the easiest ways to immediately improve the protection of plant workers and equipment.
MFR: Littelfuse
MFR #: LLSRK.300
UPC: 079458350203
Item #: 53723
Available to Order
$224.70 each
Availability
Location Available Qty
Littelfuse
Littelfuse LLNRK and LLSRK series POWR-PRO fuses provide superior overload and short circuit protection for service entrance, main, feeder and general-purpose branch circuits up to 600 amperes. LLNRK/LLSRK series fuses can be installed in existing Class H fuse blocks to upgrade systems containing lower interrupting rating Class H one-time or renewable fuses.
MFR: Littelfuse
MFR #: LLNRK040
UPC: 079458330755
Item #: 126902
Available to Order
$115.68 each
Availability
Location Available Qty
Littelfuse
RK1 fuses are extremely current-limiting fuses meaning they greatly reduce or eliminate damage to circuits and equipment under short-circuit conditions. Replacing existing Class H, K and RK5 fuses with RK1 fuses is one of the easiest ways to immediately improve the protection of plant workers and equipment.
MFR: Littelfuse
MFR #: LLSRK600
UPC: 079458350982
Item #: 315573
Available to Order
$2827.18 each
Availability
Location Available Qty
Littelfuse
Littelfuse LLNRK and LLSRK series POWR-PRO fuses provide superior overload and short circuit protection for service entrance, main, feeder and general-purpose branch circuits up to 600 amperes. LLNRK/LLSRK series fuses can be installed in existing Class H fuse blocks to upgrade systems containing lower interrupting rating Class H one-time or renewable fuses.
MFR: Littelfuse
MFR #: LLNRK300
UPC: 079458330915
Item #: 521984
Available to Order
$1058.25 each
Availability
Location Available Qty
Littelfuse
Littelfuse LLNRK and LLSRK series POWR-PRO fuses provide superior overload and short circuit protection for service entrance, main, feeder and general-purpose branch circuits up to 600 amperes. LLNRK/LLSRK series fuses can be installed in existing Class H fuse blocks to upgrade systems containing lower interrupting rating Class H one-time or renewable fuses.
MFR: Littelfuse
MFR #: LLNRK005
UPC: 079458330557
Item #: 32231
Available to Order
$82.18 each
Availability
Location Available Qty
Littelfuse
Littelfuse LLNRK and LLSRK series POWR-PRO fuses provide superior overload and short circuit protection for service entrance, main, feeder and general-purpose branch circuits up to 600 amperes. LLNRK/LLSRK series fuses can be installed in existing Class H fuse blocks to upgrade systems containing lower interrupting rating Class H one-time or renewable fuses.
MFR: Littelfuse
MFR #: LLNRK.150
UPC: 079458330137
Item #: 351739
Available to Order
$113.58 each
Availability
Location Available Qty
Littelfuse
KLNR/KLSR series RK1 fast-acting fuses were the earliest type of current-limiting fuse developed. Their single-element, silver link design enables them to provide fast-acting overload and short-circuit protection. When used to protect inductive loads such as motors, solenoids, and transformers, KLNR/KLSR series fuses must be greatly oversized to prevent opening the fuses on harmless inrush currents. In such applications, KLNR/KLSR series fuses may only provide short-circuit protection. We recommend using POWR-PRO LLNRK/LLSRK series RK1, dual-element, time-delay fuses in all new applications requiring the current-limiting ability of UL Class RK1 fast-acting fuses, or in existing applications where fast-acting RK1 or RK5 fuses have been opening on harmless system surges such as motor starting currents.
MFR: Littelfuse
MFR #: KLNR060
UPC: 079458280784
Item #: 199323
Available to Order
$307.55 each
Availability
Location Available Qty