012636_0_000 Fuses | McMaster-Carr

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Manufacturer Equivalent Fuse

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Breakthrough Current @ Voltage

50,000 amp @ 250V AC

200,000 amp @ 250V AC

50,000 amp @ 600V AC

200,000 amp @ 600V AC

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Rejection-Style End

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76 Products

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About Fuses

Ferrule Style

Knife-Blade Style

Ferrule Style with Blown-Fuse Indicator

Knife-Blade Style with 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, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.

Fuses with blown fuse indicator have a dot on the side that changes color when the fuse blows.

For technical drawings and 3-D models, click on a part number.

			Overall									Each
Current, A	Voltage	Breakthrough Current	Lg.	Dia.	No. of Elements	Cartridge Fuse Style	Blown Fuse Indicator	Specifications Met	UL File Number	CSA File Number		1-9	10-Up
Manufacturer Equivalent: FLN-R, FRN-R, TR-R
6 1/4	250V AC/125V DC	20,000 A @ 160 V DC 200,000 A @ 250 V AC	2"	9/16"	2	Ferrule	No	UL Listed, CSA Certified	E2137	012636_0_000	00000000	000000	000000
17 1/2	250V AC/125V DC	20,000 A @ 160 V DC 200,000 A @ 250 V AC	2"	9/16"	2	Ferrule	No	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	0000
175	250V AC/125V DC	20,000 A @ 250 V DC 200,000 A @ 250 V AC	7 1/8"	1 9/16"	2	Knife Blade	No	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
Manufacturer Equivalent: FLN-R-ID, FRN-R-ID, TR-R-ID
5	250V AC/125V DC	20,000 A @ 160 V DC 200,000 A @ 250 V AC	2"	9/16"	2	Ferrule	No	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
6	250V AC/125V DC	20,000 A @ 160 V DC 200,000 A @ 250 V AC	2"	9/16"	2	Ferrule	No	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
8	250V AC/160V DC	20,000 A @ 160 V DC 200,000 A @ 250 V AC	2"	9/16"	2	Ferrule	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
10	250V AC/160V DC	20,000 A @ 160 V DC 200,000 A @ 250 V AC	2"	9/16"	2	Ferrule	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
15	250V AC/160V DC	20,000 A @ 160 V DC 200,000 A @ 250 V AC	2"	9/16"	2	Ferrule	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
20	250V AC/160V DC	20,000 A @ 160 V DC 200,000 A @ 250 V AC	2"	9/16"	2	Ferrule	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	0000
25	250V AC/160V DC	20,000 A @ 160 V DC 200,000 A @ 250 V AC	2"	9/16"	2	Ferrule	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
30	250V AC/160V DC	20,000 A @ 160 V DC 200,000 A @ 250 V AC	2"	9/16"	2	Ferrule	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	0000
35	250V DC/250V AC	20,000 A @ 250 V DC 200,000 A @ 250 V AC	3"	13/16"	2	Ferrule	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
40	250V DC/250V AC	20,000 A @ 250 V DC 200,000 A @ 250 V AC	3"	13/16"	2	Ferrule	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
45	250V DC/250V AC	20,000 A @ 250 V DC 200,000 A @ 250 V AC	3"	13/16"	2	Ferrule	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
50	250V DC/250V AC	20,000 A @ 250 V DC 200,000 A @ 250 V AC	3"	13/16"	2	Ferrule	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
60	250V DC/250V AC	20,000 A @ 250 V DC 200,000 A @ 250 V AC	3"	13/16"	2	Ferrule	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
70	250V DC/250V AC	20,000 A @ 250 V DC 200,000 A @ 250 V AC	5 7/8"	1 1/16"	2	Knife Blade	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
80	250V DC/250V AC	20,000 A @ 250 V DC 200,000 A @ 250 V AC	5 7/8"	1 1/16"	2	Knife Blade	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
90	250V DC/250V AC	20,000 A @ 250 V DC 200,000 A @ 250 V AC	5 7/8"	1 1/16"	2	Knife Blade	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
100	250V DC/250V AC	20,000 A @ 250 V DC 200,000 A @ 250 V AC	5 7/8"	1 1/16"	2	Knife Blade	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
125	250V DC/250V AC	20,000 A @ 250 V DC 200,000 A @ 250 V AC	7 1/8"	1 9/16"	2	Knife Blade	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	000000	00000
150	250V DC/250V AC	20,000 A @ 250 V DC 200,000 A @ 250 V AC	7 1/8"	1 9/16"	2	Knife Blade	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	000000	00000
200	250V DC/250V AC	20,000 A @ 250 V DC 200,000 A @ 250 V AC	7 1/8"	1 9/16"	2	Knife Blade	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	000000	00000
Manufacturer Equivalent: FLS-R, FRS-R, TRS-R
6/10	600V AC/300V DC	20,000 A @ 600 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
4 1/2	600V AC/300V DC	20,000 A @ 600 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
Manufacturer Equivalent: FRS-R-ID, IDSR, TRS-R-ID
8	600V DC/600V AC	20,000 A @ 600 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
10	600V DC/600V AC	20,000 A @ 600 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
12	600V DC/600V AC	20,000 A @ 600 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
35	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5 1/2"	1 1/16"	2	Ferrule	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
45	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5 1/2"	1 1/16"	2	Ferrule	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
70	600V DC/600V AC	20,000 A @ 600 V DC 200,000 A @ 600 V AC	7 7/8"	1 5/16"	2	Knife Blade	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
80	600V DC/600V AC	20,000 A @ 600 V DC 200,000 A @ 600 V AC	7 7/8"	1 5/16"	2	Knife Blade	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
90	600V DC/600V AC	20,000 A @ 600 V DC 200,000 A @ 600 V AC	7 7/8"	1 5/16"	2	Knife Blade	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
100	600V DC/600V AC	20,000 A @ 600 V DC 200,000 A @ 600 V AC	7 7/8"	1 5/16"	2	Knife Blade	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	00000	00000
150	600V DC/600V AC	20,000 A @ 600 V DC 200,000 A @ 600 V AC	9 5/8"	1 13/16"	2	Knife Blade	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	000000	000000
175	600V AC/300V DC	20,000 A @ 600 V DC 200,000 A @ 600 V AC	9 5/8"	1 13/16"	2	Knife Blade	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	000000	000000
200	600V DC/600V AC	20,000 A @ 600 V DC 200,000 A @ 600 V AC	9 5/8"	1 13/16"	2	Knife Blade	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	000000	000000
300	600V DC/600V AC	20,000 A @ 600 V DC 200,000 A @ 600 V AC	11 5/8"	2 9/16"	2	Knife Blade	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	000000	000000
400	600V DC/600V AC	20,000 A @ 600 V DC 200,000 A @ 600 V AC	11 5/8"	2 9/16"	2	Knife Blade	Yes	UL Listed, CSA Certified	E2137	012636_0_000	00000000	000000	000000

UL Class K5 Fuses

Ferrule Style

Knife-Blade Style

Use these fast-acting fuses in applications where temporary overload current is not present, such as in lighting and heating. They open circuits quickly when surges are detected. Use with Fuse Blocks for UL Class K5 Fuses.

Breakthrough current, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.

For technical drawings and 3-D models, click on a part number.

			Overall						Each
Current, A	Voltage	Breakthrough Current	Lg.	Dia.	No. of Elements	Cartridge Fuse Style	Specifications Met		1-9	10-Up
Manufacturer Equivalent: NLN, NON, OT
2	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	2"	9/16"	1	Ferrule	UL Listed, CSA Certified	00000000	00000	00000
3	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	2"	9/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
4	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	2"	9/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
5	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	2"	9/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
6	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	2"	9/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
7	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	2"	9/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
8	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	2"	9/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
10	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	2"	9/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
12	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	2"	9/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
15	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	2"	9/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
20	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	2"	9/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
25	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	2"	9/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
30	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	2"	9/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
35	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	3"	13/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
40	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	3"	13/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
45	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	3"	13/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
50	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	3"	13/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
60	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	3"	13/16"	1	Ferrule	UL Listed, CSA Certified	00000000	0000	0000
70	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	5 7/8"	1 1/16"	1	Knife Blade	UL Listed, CSA Certified	00000000	00000	00000
80	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	5 7/8"	1 1/16"	1	Knife Blade	UL Listed, CSA Certified	00000000	00000	00000
100	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	5 7/8"	1 1/16"	1	Knife Blade	UL Listed, CSA Certified	00000000	00000	00000
200	250V AC/250V DC	20,000 A @ 250 V DC 50,000 A @ 250 V AC	7 1/8"	1 9/16"	1	Knife Blade	UL Listed, CSA Certified	00000000	00000	00000
Manufacturer Equivalent: NLS, NOS, OTS
3	600V AC/300V DC	20,000 A @ 300 V DC 50,000 A @ 600 V AC	5"	13/16"	1	Ferrule	UL Listed, CSA Certified	00000000	00000	00000
5	600V AC/300V DC	20,000 A @ 300 V DC 50,000 A @ 600 V AC	5"	13/16"	1	Ferrule	UL Listed, CSA Certified	00000000	00000	00000
10	600V AC/300V DC	20,000 A @ 300 V DC 50,000 A @ 600 V AC	5"	13/16"	1	Ferrule	UL Listed, CSA Certified	00000000	00000	00000
15	600V AC/300V DC	20,000 A @ 300 V DC 50,000 A @ 600 V AC	5"	13/16"	1	Ferrule	UL Listed, CSA Certified	00000000	00000	00000
20	600V AC/300V DC	20,000 A @ 300 V DC 50,000 A @ 600 V AC	5"	13/16"	1	Ferrule	UL Listed, CSA Certified	00000000	00000	00000
25	600V AC/300V DC	20,000 A @ 300 V DC 50,000 A @ 600 V AC	5"	13/16"	1	Ferrule	UL Listed, CSA Certified	00000000	00000	00000
30	600V AC/300V DC	20,000 A @ 300 V DC 50,000 A @ 600 V AC	5"	13/16"	1	Ferrule	UL Listed, CSA Certified	00000000	00000	00000
35	600V AC/300V DC	20,000 A @ 300 V DC 50,000 A @ 600 V AC	5 1/2"	1 1/16"	1	Ferrule	UL Listed, CSA Certified	0000000	00000	00000
40	600V AC/300V DC	20,000 A @ 300 V DC 50,000 A @ 600 V AC	5 1/2"	1 1/16"	1	Ferrule	UL Listed, CSA Certified	00000000	00000	00000
50	600V AC/300V DC	20,000 A @ 300 V DC 50,000 A @ 600 V AC	5 1/2"	1 1/16"	1	Ferrule	UL Listed, CSA Certified	00000000	00000	00000
60	600V AC/300V DC	20,000 A @ 300 V DC 50,000 A @ 600 V AC	5 1/2"	1 1/16"	1	Ferrule	UL Listed, CSA Certified	00000000	00000	00000
70	600V AC/300V DC	20,000 A @ 300 V DC 50,000 A @ 600 V AC	7 7/8"	1 5/16"	1	Knife Blade	UL Listed, CSA Certified	00000000	00000	00000
80	600V AC/300V DC	20,000 A @ 300 V DC 50,000 A @ 600 V AC	7 7/8"	1 5/16"	1	Knife Blade	UL Listed, CSA Certified	00000000	00000	00000
100	600V AC/300V DC	20,000 A @ 300 V DC 50,000 A @ 600 V AC	7 7/8"	1 5/16"	1	Knife Blade	UL Listed, CSA Certified	00000000	00000	00000
200	600V AC/300V DC	20,000 A @ 300 V DC 50,000 A @ 600 V AC	9 5/8"	1 13/16"	1	Knife Blade	UL Listed, CSA Certified	00000000	000000	00000