300V DC Fuses | McMaster-Carr

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	Current Current

	Fuse Type Fuse Type


Cartridge	Touch Safe

	Voltage Voltage	Show

300V DC

	Voltage Voltage	Hide

	Manufacturer Equivalent Manufacturer Equivalent

	UL Class UL Class

RK5

RK1

	Protection Type Protection Type

Time Delay

Fast Acting

	Overall Length Overall Length

	Overall Diameter Overall Diameter

	Cartridge Fuse Style Cartridge Fuse Style

Ferrule

Knife Blade

	Breakthrough Current Breakthrough Current

	Blown Fuse Indicator Blown Fuse Indicator

Yes

	Specifications Met Specifications Met

CSA

CE Marked

IEC

	Number of Elements Number of Elements

	Rejection-Style End Rejection-Style End

Yes

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Indicator Type Indicator Type

Dot

	Height Height

1.88"

2.13"

3.01"

	Depth Depth

1.13"

1.26"

	Width Width

3/4"

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About Fuses

These fuses can withstand the high inrush current caused by a motor starting. They provide comparable performance with a smaller footprint than standard size fuses. All have a rejection-style end that safeguards against replacement errors. Use them to protect power distribution branch circuits. Designed for use with Fuse Blocks for UL Class CC 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.

			Overall						Each
Current, A	Voltage	Breakthrough Current	Lg.	Dia.	No. of Elements	Cartridge Fuse Style	Specifications Met		1-9	10-Up
Manufacturer Equivalent: ATD-R, CCMR, LP-CC
1/4	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	000000	000000
1/2	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
8/10	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
1	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
1 1/8	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
1 1/4	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
1 4/10	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
1 1/2	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
2	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
2 1/4	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
2 1/2	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
2 8/10	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
3	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
3 2/10	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
3 1/2	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
4	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
4 1/2	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
5	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
5 6/10	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
6	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
6 1/4	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
7	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
7 1/2	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
8	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
9	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
10	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000
17 1/2	600V AC/300V DC	100,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	UL Listed	000000000	00000	00000

UL Class CC Time-Delay Midget Fuses for Transformers

Designed to handle high inrush currents and the initial current cycle unique to transformers, these fuses provide comparable performance with a smaller footprint than standard size fuses. Use them to protect power distribution branch circuits. They’re for use with Fuse Blocks for UL Class CC Fuses.

Fuses with a rejection-style end safeguard against replacement errors.

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.

			Overall							Each
Current, A	Voltage	Breakthrough Current	Lg.	Dia.	No. of Elements	Cartridge Fuse Style	Rejection-Style End	Specifications Met		1-9	10-Up
Manufacturer Equivalent: ATQ-R, FNQ-R, KLD-R
1/10	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	00000000	00000	00000
1/8	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	00000000	0000	0000
15/100	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	00000000	0000	0000
3/16	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	00000000	0000	0000
2/10	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	00000000	0000	0000
1 1/18	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	00000000	0000	0000
2 1/4	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	00000000	0000	0000
2 8/10	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	00000000	0000	0000
5 6/10	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	00000000	0000	0000
12	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	0000
15	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	0000
17 1/2	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	00000000	0000	0000
20	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	0000
25	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	0000
30	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	0000

UL Class RK5 Fuses

Ferrule Style

Knife-Blade Style

Ferrule 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.

			Overall							Each
Current, A	Voltage	Breakthrough Current	Lg.	Dia.	No. of Elements	Cartridge Fuse Style	Blown Fuse Indicator	Specifications Met		1-9	10-Up
Manufacturer Equivalent: FLS-R, FRS-R, TRS-R
1/4	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	00000000	000000	000000
1/2	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	00000000	00000	00000
1	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	00000000	00000	00000
1 1/4	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	00000000	00000	00000
1 6/10	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	00000000	00000	00000
2	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	00000000	00000	00000
2 1/2	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	00000000	00000	00000
3	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	00000000	00000	00000
3 2/10	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	0000000	00000	00000
4	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	00000000	00000	00000
5	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	0000000	00000	00000
6	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	00000000	00000	00000
6 1/4	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	0000000	00000	00000
7	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	00000000	00000	00000
8	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	00000000	00000	00000
10	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	0000000	00000	00000
12	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	0000000	00000	00000
15	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	0000000	00000	00000
17 1/2	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	0000000	00000	00000
20	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	0000000	00000	00000
25	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	00000000	00000	00000
30	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	0000000	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	No	UL Listed, CSA Certified	00000000	00000	00000
40	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5 1/2"	1 1/16"	2	Ferrule	No	UL Listed, CSA Certified	0000000	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	No	UL Listed, CSA Certified	00000000	00000	00000
50	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5 1/2"	1 1/16"	2	Ferrule	No	UL Listed, CSA Certified	0000000	00000	00000
60	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5 1/2"	1 1/16"	2	Ferrule	No	UL Listed, CSA Certified	0000000	00000	00000
70	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	7 7/8"	1 1/8"	2	Knife Blade	No	UL Listed, CSA Certified	00000000	00000	00000
80	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	7 7/8"	1 1/8"	2	Knife Blade	No	UL Listed, CSA Certified	0000000	00000	00000
90	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	7 7/8"	1 1/8"	2	Knife Blade	No	UL Listed, CSA Certified	00000000	00000	00000
100	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	7 7/8"	1 1/8"	2	Knife Blade	No	UL Listed, CSA Certified	000000	00000	00000
125	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	9 5/8"	1 5/8"	2	Knife Blade	No	UL Listed, CSA Certified	00000000	00000	00000
150	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	9 5/8"	1 5/8"	2	Knife Blade	No	UL Listed, CSA Certified	0000000	00000	00000
175	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	9 5/8"	1 5/8"	2	Knife Blade	No	UL Listed, CSA Certified	0000000	00000	00000
200	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	9 5/8"	1 5/8"	2	Knife Blade	No	UL Listed, CSA Certified	0000000	00000	00000
300	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	11 5/8"	2 11/32"	2	Knife Blade	No	UL Listed, CSA Certified	0000000	000000	000000
400	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	11 5/8"	2 11/32"	2	Knife Blade	No	UL Listed, CSA Certified	0000000	000000	000000
500	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	13 3/8"	2 7/8"	2	Knife Blade	No	UL Listed, CSA Certified	0000000	000000	000000
600	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	13 3/8"	2 7/8"	2	Knife Blade	No	UL Listed, CSA Certified	00000000	000000	000000
Manufacturer Equivalent: FRS-R-ID, IDSR, TRS-R-ID
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	00000000	00000	00000
40	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	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	00000000	00000	00000
50	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	00000000	00000	00000
60	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	00000000	00000	00000

UL Class J Time-Delay Fuses for Tight Spaces

Ferrule Style

Knife-Blade Style

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.

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.

			Overall							Each
Current, A	Voltage	Breakthrough Current	Lg.	Dia.	No. of Elements	Cartridge Fuse Style	Blown Fuse Indicator	Specifications Met		1-9	10-Up
Manufacturer Equivalent: AJT, JTD, LPJ-SP
1	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	000000	000000
1 1/4	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
2	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
2 1/2	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
2 8/10	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
3	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
4	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
5	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
6	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
7	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
8	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
10	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
12	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
15	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
20	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
25	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
30	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 1/4"	13/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
35	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 3/8"	1 1/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
40	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 3/8"	1 1/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
45	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 3/8"	1 1/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
50	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 3/8"	1 1/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
60	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2 3/8"	1 1/16"	2	Ferrule	No	UL Listed, CSA Certified	000000000	00000	00000
70	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	4 5/8"	1 1/8"	2	Knife Blade	No	UL Listed, CSA Certified	000000000	00000	00000
80	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	4 5/8"	1 1/8"	2	Knife Blade	No	UL Listed, CSA Certified	000000000	00000	00000
90	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	4 5/8"	1 1/8"	2	Knife Blade	No	UL Listed, CSA Certified	000000000	00000	00000
100	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	4 5/8"	1 1/8"	2	Knife Blade	No	UL Listed, CSA Certified	000000000	00000	00000
125	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5 3/4"	1 5/8"	2	Knife Blade	No	UL Listed, CSA Certified	000000000	000000	000000
150	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5 3/4"	1 5/8"	2	Knife Blade	No	UL Listed, CSA Certified	000000000	000000	000000
175	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5 3/4"	1 5/8"	2	Knife Blade	No	UL Listed, CSA Certified	000000000	000000	000000
200	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5 3/4"	1 5/8"	2	Knife Blade	No	UL Listed, CSA Certified	00000000	000000	000000
250	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	7 1/8"	2 1/8"	2	Knife Blade	No	UL Listed, CSA Certified	000000000	000000	000000
400	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	7 1/8"	2 1/8"	2	Knife Blade	No	UL Listed, CSA Certified	00000000	000000	000000

UL Class RK1 Time-Delay Fuses

Ferrule Style

Knife-Blade Style

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

			Overall						Each
Current, A	Voltage	Breakthrough Current	Lg.	Dia.	No. of Elements	Cartridge Fuse Style	Specifications Met		1-9	10-Up
Manufacturer Equivalent: A6D-R, LLS-RK, LPS-RK
1/2	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5"	13/16"	2	Ferrule	UL Listed, CSA Certified	000000000	000000	000000
1	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5"	13/16"	2	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
1 1/4	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5"	13/16"	2	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
2	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5"	13/16"	2	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
2 1/2	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5"	13/16"	2	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
3	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5"	13/16"	2	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
5	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5"	13/16"	2	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
10	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5"	13/16"	2	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
15	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5"	13/16"	2	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
20	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5"	13/16"	2	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
30	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5"	13/16"	2	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
35	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5 1/2"	1 1/16"	2	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
40	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5 1/2"	1 1/16"	2	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
50	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5 1/2"	1 1/16"	2	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
60	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	5 1/2"	1 1/16"	2	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
100	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	7 7/8"	1 3/16"	2	Knife Blade	UL Listed, CSA Certified	00000000	00000	00000
125	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	9 5/8"	1 11/16"	2	Knife Blade	UL Listed, CSA Certified	000000000	000000	000000
200	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	9 5/8"	1 11/16"	2	Knife Blade	UL Listed, CSA Certified	00000000	000000	000000
400	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	11 5/8"	2 3/8"	2	Knife Blade	UL Listed, CSA Certified	00000000	000000	000000
600	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	13 3/8"	2 7/8"	2	Knife Blade	UL Listed, CSA Certified	00000000	000000	000000

UL Class RK1 Fast-Acting Fuses

Ferrule Style

Knife-Blade Style

These fuses open circuits quickly when surges are detected. They have a rejection-style end design that safeguards against replacement errors. Use with Fuse Blocks for UL Class RK1 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.

			Overall						Each
Current, A	Voltage	Breakthrough Current	Lg.	Dia.	No. of Elements	Cartridge Fuse Style	Specifications Met		1-9	10-Up
Manufacturer Equivalent: A6K-R, KLS-R, KTS-R
40	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	5 1/2"	1 1/16"	1	Ferrule	UL Listed, CSA Certified	00000000	000000	000000
50	600V AC/300V DC	20,000 A @ 300 V DC 200,000 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 200,000 A @ 600 V AC	5 1/2"	1 1/16"	1	Ferrule	UL Listed, CSA Certified	00000000	00000	00000
80	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	7 7/8"	1 5/16"	1	Knife Blade	UL Listed, CSA Certified	00000000	000000	000000
90	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	7 7/8"	1 5/16"	1	Knife Blade	UL Listed, CSA Certified	00000000	000000	000000
100	600V AC/300V DC	20,000 A @ 300 V DC 200,000 A @ 600 V AC	7 7/8"	1 5/16"	1	Knife Blade	UL Listed, CSA Certified	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.

			Overall						Each
Current, A	Voltage	Breakthrough Current	Lg.	Dia.	No. of Elements	Cartridge Fuse Style	Specifications Met		1-9	10-Up
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	000000	000000
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
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
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	00000	00000

UL Class G Time-Delay Midget Fuses

Able to withstand current overload for a short time, these fuses will not open when exposed to harmless temporary surges, such as when starting a motor. They have a smaller footprint than standard size fuses. Protect power distribution branch circuits from overcurrent. Use with Fuse Blocks for UL Class G 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.

			Overall						Each
Current, A	Voltage	Breakthrough Current	Lg.	Dia.	No. of Elements	Cartridge Fuse Style	Specifications Met		1-9	10-Up
Manufacturer Equivalent: AG, SC, SLC
25	480V AC/300V DC	10,000 A @ 300 V DC 100,000 A @ 480 V AC	1 5/8"	13/32"	1	Ferrule	UL Listed, CSA Certified	000000000	000000	00000
30	480V AC/300V DC	10,000 A @ 300 V DC 100,000 A @ 480 V AC	1 5/8"	13/32"	1	Ferrule	UL Listed, CSA Certified	000000000	00000	0000
35	480V AC/300V DC	10,000 A @ 300 V DC 100,000 A @ 480 V AC	2 1/4"	13/32"	1	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
40	480V AC/300V DC	10,000 A @ 300 V DC 100,000 A @ 480 V AC	2 1/4"	13/32"	1	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
45	480V AC/300V DC	10,000 A @ 300 V DC 100,000 A @ 480 V AC	2 1/4"	13/32"	1	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
50	480V AC/300V DC	10,000 A @ 300 V DC 100,000 A @ 480 V AC	2 1/4"	13/32"	1	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
60	480V AC/300V DC	10,000 A @ 300 V DC 100,000 A @ 480 V AC	2 1/4"	13/32"	1	Ferrule	UL Listed, CSA Certified	000000000	00000	00000

UL Class L High-Current Fuses

These time-delay fuses are suitable for high-current power applications. They can withstand current overload for a short time and will not open when exposed to harmless temporary surges, such as when starting a motor.

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.

			Overall
Current, A	Voltage	Breakthrough Current	Lg.	Dia.	No. of Elements	Cartridge Fuse Style	Specifications Met		Each
Manufacturer Equivalent: A4BQ, KLPC, KRP-C
601	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	8 5/8"	2 1/2"	1	Knife Blade	UL Listed, CSA Certified, CE Marked	0000000	0000000
801	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	10 3/4"	2 1/2"	1	Knife Blade	UL Listed, CSA Certified, CE Marked	0000000	000000
1,000	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	10 3/4"	2 1/2"	1	Knife Blade	UL Listed, CSA Certified, CE Marked	0000000	000000
1,200	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	10 3/4"	2 1/2"	1	Knife Blade	UL Listed, CSA Certified, CE Marked	0000000	000000

Touch-Safe Fuses

Prevent accidental contact with electrical circuits—these fuses have an enclosed design with recessed plug-in blades. Also known as dual-element fuses, they withstand current overload for a short time so they won't open when exposed to harmless temporary surges, such as when starting a motor.

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 turns red when the fuse blows.

Fuses													DIN-Rail Mount Fuse Blocks
Current, A	UL Class	Voltage	Breakthrough Current	Ht.	Wd.	Dp.	No. of Elements	Blown Fuse Indicator	Protection Type	Specifications Met		Each		Each
Manufacturer Equivalent: TCF
6	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	1.88"	3/4"	1"	2	Yes	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	000000	0000000	000000
10	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	1.88"	3/4"	1"	2	Yes	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	00000	0000000	00000
15	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	1.88"	3/4"	1"	2	Yes	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	00000	0000000	00000
17 1/2	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	1.88"	3/4"	1"	2	Yes	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	00000	0000000	00000
20	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	1.88"	3/4"	1"	2	Yes	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	00000	0000000	00000
25	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	1.88"	3/4"	1"	2	Yes	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	00000	0000000	00000
30	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	1.88"	3/4"	1"	2	Yes	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	00000	0000000	00000
35	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2.13"	1"	1.13"	2	Yes	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	00000	0000000	00000
40	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2.13"	1"	1.13"	2	Yes	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	00000	0000000	00000
45	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2.13"	1"	1.13"	2	Yes	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	00000	0000000	00000
50	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2.13"	1"	1.13"	2	Yes	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	00000	0000000	00000
60	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	2.13"	1"	1.13"	2	Yes	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	00000	0000000	00000
70	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	3.01"	1"	1.26"	2	Yes	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	000000	0000000	00000
80	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	3.01"	1"	1.26"	2	Yes	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	000000	0000000	00000
90	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	3.01"	1"	1.26"	2	Yes	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	000000	0000000	00000
100	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	3.01"	1"	1.26"	2	Yes	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	000000	0000000	00000
Manufacturer Equivalent: TCF-RN
1	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	1.88"	3/4"	1"	2	No	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	00000	0000000	00000
3	CF	600V AC/300V DC	100,000 A @ 300 V DC 300,000 A @ 600 V AC	1.88"	3/4"	1"	2	No	Time Delay	UL Listed, CSA Certified, IEC European Standards	0000000	00000	0000000	00000

Terms and Conditions and Privacy Policy

About Fuses

UL Class CC Time-Delay Midget Fuses for Motors

UL Class CC Time-Delay Midget Fuses for Transformers

UL Class RK5 Fuses

UL Class J Time-Delay Fuses for Tight Spaces

UL Class RK1 Time-Delay Fuses

UL Class RK1 Fast-Acting Fuses

UL Class K5 Fuses

UL Class G Time-Delay Midget Fuses

UL Class L High-Current Fuses

Touch-Safe Fuses