Littelfuse-Type LLS-RK Fuses

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300,000 amp @ 600V AC

100,000 amp @ 300V DC

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20 Products

UL Class RK1 Time-Delay Fuses


Ferrule Cartridge Fuse	Knife-Blade Cartridge Fuse

Also known as dual-element fuses, these fuses withstand current overload for a short time so they won't open when exposed to harmless temporary surges, such as when starting a motor. They have a rejection-style end design that safeguards against replacement errors. Designed for use with Fuse Blocks for UL Class RK1 Fuses.

Breakthrough Current @ Voltage—Breakthrough current at voltage, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.

													Each
	Current, amp	Fuse UL Class	Voltage	Breakthrough Current @ Voltage	Overall Lg.	No. of Elements	Cartridge Fuse Type	Fuse Protection Type	With Blown Fuse Indicator	Rejection-Style End	Certification		1-9	10-Up
Manufacturer Equivalent Fuse: A6D-R, LLS-RK, LPS-RK







				13/16" Overall Diameter

				1/2	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	000000000	000000	000000


				1	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	000000000	00000	00000
				1 1/4	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	000000000	00000	00000
				2	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	000000000	00000	00000
				2 1/2	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	000000000	00000	00000
				3	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	000000000	00000	00000
				5	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	000000000	00000	00000
				10	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	000000000	00000	00000
				15	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	000000000	00000	00000
				20	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	000000000	00000	00000
				30	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	000000000	00000	00000




						1 1/16" Overall Diameter

						35	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5 1/2"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	000000000	00000	00000


						40	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5 1/2"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	000000000	00000	00000
						50	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5 1/2"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	000000000	00000	00000
						60	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5 1/2"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	000000000	00000	00000




								1 3/16" Overall Diameter

								100	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	7 7/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	00000000	00000	00000




										1 11/16" Overall Diameter

										125	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	9 5/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	000000000	000000	000000


										200	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	9 5/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	00000000	000000	000000




												2 3/8" Overall Diameter

												400	RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	11 5/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	00000000	000000	000000




														2 7/8" Overall Diameter

600														RK1	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	13 3/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	00000000	000000	000000