Time Delay Midget Fuses | McMaster-Carr

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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.

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: 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
12	600V AC/500V DC	20,000 A @ 500 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	2	Ferrule	UL Listed	000000000	00000	00000
15	600V AC/500V DC	20,000 A @ 500 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	2	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
20	600V AC/500V DC	20,000 A @ 500 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	2	Ferrule	UL Listed	000000000	00000	00000
25	600V AC/500V DC	20,000 A @ 500 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	2	Ferrule	UL Listed	000000000	00000	00000
30	600V AC/500V DC	20,000 A @ 500 V DC 200,000 A @ 600 V AC	1 1/2"	13/32"	2	Ferrule	UL Listed	000000000	00000	00000
35	600V AC/250V DC	20,000 A @ 250 V DC 200,000 A @ 600 V AC	1 7/8"	27/32"	2	Ferrule	UL Listed	000000000	00000	00000
40	600V AC/250V DC	20,000 A @ 250 V DC 200,000 A @ 600 V AC	1 7/8"	27/32"	2	Ferrule	UL Listed	000000000	00000	00000
45	600V AC/250V DC	20,000 A @ 250 V DC 200,000 A @ 600 V AC	1 7/8"	27/32"	2	Ferrule	UL Listed	000000000	00000	00000
50	600V AC/250V DC	20,000 A @ 250 V DC 200,000 A @ 600 V AC	1 7/8"	27/32"	2	Ferrule	UL Listed	000000000	00000	00000
60	600V AC/250V DC	20,000 A @ 250 V DC 200,000 A @ 600 V AC	1 7/8"	27/32"	2	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.

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	Rejection-Style End	Specifications Met		1-9	10-Up
Manufacturer Equivalent: ATQ, FLQ, FNQ
1 4/10	500V AC	10,000 A @ 500 V AC	1 1/2"	13/32"	1	Ferrule	No	UL Listed	00000000	000000	000000
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	00000	00000
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	00000	00000
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	00000	00000
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	00000	00000
1/4	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
3/10	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
4/10	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
1/2	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
6/10	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
3/4	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
8/10	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
1	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
1 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	00000	00000
1 1/4	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
1 3/10	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
1 1/2	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
1 6/10	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
1 8/10	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
2	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
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	00000	00000
2 1/2	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
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	00000	00000
3	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
3 2/10	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
3 1/2	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
4	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
4 1/2	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
5	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
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	00000	00000
6	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
6 1/4	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
7	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
7 1/2	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
8	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
9	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
10	600V AC	200,000 A @ 600 V AC	1 1/2"	13/32"	1	Ferrule	Yes	UL Listed	0000000	00000	00000
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	00000
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	00000
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	00000	00000
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	00000
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	00000
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	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.

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: AG, SC, SLC
10	600V AC/170V DC	10,000 A @ 170 V DC 100,000 A @ 600 V AC	1 5/16"	13/32"	1	Ferrule	UL Listed, CSA Certified	000000000	00000	00000
15	600V AC/170V DC	10,000 A @ 170 V DC 100,000 A @ 600 V AC	1 5/16"	13/32"	1	Ferrule	UL Listed, CSA Certified	000000000	0000	0000
20	600V AC/170V DC	10,000 A @ 170 V DC 100,000 A @ 600 V AC	1 13/32"	13/32"	1	Ferrule	UL Listed, CSA Certified	000000000	0000	0000
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	00000	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	00000
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