Littelfuse-Type FLS-R Fuses

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Current

Manufacturer Equivalent Fuse

Voltage

Overall Length

Cartridge Fuse Type

Breakthrough Current @ Voltage

200,000 amp @ 600V AC

Overall Diameter

Length

Diameter

Certification

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

DFARS Specialty Metals

Exempt

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REACH

RoHS

39 Products

UL Class RK5 Fuses


Ferrule Cartridge Fuse, Without Blown Fuse Indicator	Knife-Blade Cartridge Fuse, Without Blown Fuse Indicator

Also known as dual-element fuses, these time-delay 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. Use with Fuse Blocks for UL Class RK5 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	UL File No.	CSA File No.		1-9	10-Up
Manufacturer Equivalent Fuse: FLS-R, FRS-R, TRS-R







				13/16" Overall Diameter

				1/4	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K225	000000	000000


				1/2	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K226	00000	00000
				1	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K272	00000	00000
				1 1/4	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K273	00000	00000
				1 6/10	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K278	00000	00000
				2	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K274	00000	00000
				2 1/2	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K275	00000	00000
				3	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K221	00000	00000
				3 2/10	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K22	00000	00000
				4	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K276	00000	00000
				5	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K45	00000	00000


				6	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K222	00000	00000
				6 1/4	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K91	00000	00000
				7	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K277	00000	00000
				8	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K279	00000	00000
				10	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K23	00000	00000
				12	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K81	00000	00000
				15	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K24	00000	00000
				17 1/2	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K92	00000	00000
				20	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K25	00000	00000
				25	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K282	00000	00000


				30	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	5"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K26	00000	00000




						1 1/16" Overall Diameter

						35	RK5	600V AC, 250V DC	200,000 amp @ 600V AC 20,000 amp @ 250V DC	5 1/2"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K227	00000	00000


						40	RK5	600V AC, 250V DC	200,000 amp @ 600V AC 20,000 amp @ 250V DC	5 1/2"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K27	00000	00000
						45	RK5	600V AC, 250V DC	200,000 amp @ 600V AC 20,000 amp @ 250V DC	5 1/2"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K223	00000	00000
						50	RK5	600V AC, 250V DC	200,000 amp @ 600V AC 20,000 amp @ 250V DC	5 1/2"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K28	00000	00000
						60	RK5	600V AC, 250V DC	200,000 amp @ 600V AC 20,000 amp @ 250V DC	5 1/2"	2	Ferrule	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K29	00000	00000




								1 1/8" Overall Diameter

								70	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	7 7/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K312	00000	00000


								80	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	7 7/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K51	00000	00000
								90	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	7 7/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K313	00000	00000
								100	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	7 7/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K3	00000	00000




								1 5/8" Overall Diameter

								125	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	9 5/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K224	000000	000000


		150	RK5					600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	9 5/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K52	000000	000000
		175	RK5					600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	9 5/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K82	000000	000000
		200	RK5					600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	9 5/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K31	000000	000000




								2 11/32" Overall Diameter

								300	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	11 5/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K34	000000	000000


								400	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	11 5/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K32	000000	000000




										2 7/8" Overall Diameter

										500	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	13 3/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K53	000000	000000


										600	RK5	600V AC, 300V DC	200,000 amp @ 600V AC 20,000 amp @ 300V DC	13 3/8"	2	Knife Blade	Time Delay	No	Yes	UL Listed, CSA Certified	E4273	053787_C_000	7049K251	000000	000000