Bussmann-Type LPJ-SP Fuses

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Breakthrough Current @ Voltage

200,000 amp @ 600V AC

300,000 amp @ 600V AC

100,000 amp @ 300V DC

100,000 amp @ 400V DC

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54 Products

UL Class J Time-Delay Fuses for Tight Spaces


Ferrule Cartridge Fuse, With Blown Fuse Indicator	Ferrule Cartridge Fuse, Without Blown Fuse Indicator

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

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. More compact than UL Class RK1 or RK5 fuses, they are suitable for tight spaces. Use with Fuse Blocks for UL Class J Fuses.

With Blown Fuse Indicator—Fuses with blown fuse indicator have a dot on the side that changes color when the fuse blows.

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: AJT, JTD, LPJ-SP







				13/16" Overall Diameter

				1	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	2 1/4"	2	Ferrule	Time Delay	No	No	UL Listed, CSA Certified	000000000	000000	000000


				1 1/4	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	2 1/4"	2	Ferrule	Time Delay	No	No	UL Listed, CSA Certified	000000000	00000	00000
				2	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	2 1/4"	2	Ferrule	Time Delay	No	No	UL Listed, CSA Certified	000000000	00000	00000
				2 1/2	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	2 1/4"	2	Ferrule	Time Delay	No	No	UL Listed, CSA Certified	000000000	00000	00000
				2 8/10	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	2 1/4"	2	Ferrule	Time Delay	No	No	UL Listed, CSA Certified	000000000	00000	00000
				3	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	2 1/4"	2	Ferrule	Time Delay	No	No	UL Listed, CSA Certified	000000000	00000	00000
				4	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	2 1/4"	2	Ferrule	Time Delay	No	No	UL Listed, CSA Certified	000000000	00000	00000
				5	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	2 1/4"	2	Ferrule	Time Delay	No	No	UL Listed, CSA Certified	000000000	00000	00000
				6	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	2 1/4"	2	Ferrule	Time Delay	No	No	UL Listed, CSA Certified	000000000	00000	00000
				7	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	2 1/4"	2	Ferrule	Time Delay	No	No	UL Listed, CSA Certified	000000000	00000	00000
				8	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	2 1/4"	2	Ferrule	Time Delay	No	No	UL Listed, CSA Certified	000000000	00000	00000


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




						1 1/16" Overall Diameter

						35	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	2 3/8"	2	Ferrule	Time Delay	No	No	UL Listed, CSA Certified	000000000	00000	00000


						40	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	2 3/8"	2	Ferrule	Time Delay	No	No	UL Listed, CSA Certified	000000000	00000	00000
						45	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	2 3/8"	2	Ferrule	Time Delay	No	No	UL Listed, CSA Certified	000000000	00000	00000
						50	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	2 3/8"	2	Ferrule	Time Delay	No	No	UL Listed, CSA Certified	000000000	00000	00000
						60	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	2 3/8"	2	Ferrule	Time Delay	No	No	UL Listed, CSA Certified	000000000	00000	00000




								1 1/8" Overall Diameter

								70	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	4 5/8"	2	Knife Blade	Time Delay	No	No	UL Listed, CSA Certified	000000000	000000	000000


								80	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	4 5/8"	2	Knife Blade	Time Delay	No	No	UL Listed, CSA Certified	000000000	000000	000000
								90	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	4 5/8"	2	Knife Blade	Time Delay	No	No	UL Listed, CSA Certified	000000000	000000	000000
								100	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	4 5/8"	2	Knife Blade	Time Delay	No	No	UL Listed, CSA Certified	000000000	000000	000000




										1 5/8" Overall Diameter

										125	J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5 3/4"	2	Knife Blade	Time Delay	No	No	UL Listed, CSA Certified	000000000	000000	000000


150										J	600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5 3/4"	1	Knife Blade	Time Delay	No	No	UL Listed, CSA Certified	000000000	000000	000000
175	J									600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5 3/4"	2	Knife Blade	Time Delay	No	No	UL Listed, CSA Certified	000000000	000000	000000
200	J									600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	5 3/4"	2	Knife Blade	Time Delay	No	No	UL Listed, CSA Certified	00000000	000000	000000




		2 1/8" Overall Diameter

		250	J							600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	7 1/8"	2	Knife Blade	Time Delay	No	No	UL Listed, CSA Certified	000000000	000000	000000


		400	J							600V AC, 300V DC	300,000 amp @ 600V AC 100,000 amp @ 300V DC	7 1/8"	2	Knife Blade	Time Delay	No	No	UL Listed, CSA Certified	00000000	000000	000000


		Manufacturer Equivalent Fuse: AJT, JTD-ID, LPJ-SPI







												13/16" Overall Diameter

												8	J	600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	2 1/4"	1	Ferrule	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000


												9	J	600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	2 1/4"	1	Ferrule	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000
												10	J	600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	2 1/4"	1	Ferrule	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000
												12	J	600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	2 1/4"	1	Ferrule	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000
												15	J	600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	2 1/4"	1	Ferrule	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000
												17 1/2	J	600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	2 1/4"	1	Ferrule	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000
												20	J	600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	2 1/4"	1	Ferrule	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000
				25								J	600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	2 1/4"	1	Ferrule	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000
				30	J							600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	2 1/4"	1	Ferrule	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000




												1 1/16" Overall Diameter

												35	J	600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	2 3/8"	1	Ferrule	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000


												40	J	600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	2 3/8"	1	Ferrule	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000
												45	J	600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	2 3/8"	1	Ferrule	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000
						50						J	600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	2 3/8"	1	Ferrule	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000
						60	J					600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	2 3/8"	1	Ferrule	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000
						70	J					600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	4 5/8"	2	Knife Blade	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000
						80	J					600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	4 5/8"	2	Knife Blade	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000
						90	J					600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	4 5/8"	2	Knife Blade	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000
						100	J					600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	4 5/8"	2	Knife Blade	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	00000	00000




												1 5/8" Overall Diameter

								125				J	600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	5 3/4"	4	Knife Blade	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	000000	000000


								150	J			600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	5 3/4"	4	Knife Blade	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	000000	000000
								175	J			600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	5 3/4"	4	Knife Blade	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	000000	000000
								200	J			600V AC, 400V DC	200,000 amp @ 600V AC 100,000 amp @ 400V DC	5 3/4"	4	Knife Blade	Time Delay	Yes	No	UL Listed, CSA Certified	0000000	000000	000000