3AB Fuses | McMaster-Carr

	Current Current

	Fuse Type Fuse Type

	Ceramic
	Glass

	Voltage Voltage

	Protection Type Protection Type

Time Delay

Fast Acting

	Manufacturer Equivalent Manufacturer Equivalent

	Breakthrough Current Breakthrough Current

	Specifications Met Specifications Met

CSA

CE Marked

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

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

DFARS Specialty Metals
COTS-Exempt

	Total Number of Pieces Total Number of Pieces

59 Products

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About Fuses

1/4" Dia.

Able to withstand current overload for a short time, these fuses will not open when exposed to harmless temporary surges. They can withstand temperature swings and high ambient temperatures better than glass-tube fuses. Use them with electronics, control panels, and other sensitive components. Select these fuses by their diameters. Designed for use with Fuse Blocks for Ceramic-Tube 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.

1/4" dia. fuses can be used in high-current electronic circuits such as microwave ovens.

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

								Each
Fuse Trade Size	Current, A	Voltage	Breakthrough Current	Overall Lg.	No. of Elements	Specifications Met		1-9	10-Up
Manufacturer Equivalent: 326, GSA, MDA
1/4" Overall Dia.
3AB	1/4	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	00000	00000
3AB	3/8	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	1/2	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	3/4	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	1	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	1 1/2	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	2	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	2 1/2	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	3	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	4	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	5	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	6	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	7	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	8	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	10	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	12	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	15	250V AC	10,000 A @ 125 V AC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	20	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified, CE Marked	000000000	0000	0000
3AB	25	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified, CE Marked	000000000	0000	0000
3AB	30	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified, CE Marked	000000000	0000	0000

Fast-Acting Ceramic-Tube Fuses

1/4" Dia.

These fuses open circuits quickly when surges are detected. They can withstand temperature swings and high ambient temperatures better than glass-tube fuses. Use with electronics, control panels, and other sensitive components. Select these fuses by their diameters. Designed for use with Fuse Blocks for Ceramic-Tube 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.

1/4" dia. fuses can be used in high-current electronic circuits such as microwave ovens.

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

							Each
Current, A	Voltage	Breakthrough Current	Overall Lg.	No. of Elements	Specifications Met		1-9	10-Up
Manufacturer Equivalent: 322, GBB
1/4" Overall Dia.
1	250V AC/125V DC	10,000 A @ 125 V AC, 10,000 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified	000000000	000000	000000
2	250V AC/125V DC	10,000 A @ 125 V AC, 10,000 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified	000000000	00000	00000
3	250V AC/125V DC	10,000 A @ 125 V AC, 10,000 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified	000000000	00000	00000
4	250V AC/125V DC	10,000 A @ 125 V AC, 10,000 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified	000000000	00000	00000
5	250V AC/125V DC	10,000 A @ 125 V AC, 10,000 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified	000000000	00000	00000
6	250V AC/125V DC	10,000 A @ 125 V AC, 10,000 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified	000000000	00000	00000
8	250V AC/125V DC	10,000 A @ 125 V AC, 10,000 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified	000000000	00000	00000
10	250V AC/125V DC	10,000 A @ 125 V AC, 10,000 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified	000000000	00000	00000
12	250V AC/125V DC	10,000 A @ 125 V AC, 10,000 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified	000000000	00000	00000
15	250V AC/125V DC	10,000 A @ 125 V AC, 10,000 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified	000000000	00000	00000
20	250V AC/125V DC	200 A @ 125 V AC, 200 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified	000000000	00000	00000
25	250V AC/125V DC	200 A @ 125 V AC, 200 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified	000000000	00000	00000

									Pkg.
Fuse Trade Size	Current, A	Voltage	Breakthrough Current	Overall Lg.	No. of Elements	Specifications Met	Pkg. Qty.		1-9	10-Up
Manufacturer Equivalent: 314, ABC, GAB
1/4" Overall Dia.
3AB	1/4	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified	5	00000000	00000	00000
3AB	1/2	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified	5	00000000	0000	0000
3AB	3/4	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified	5	00000000	0000	0000
3AB	1	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified	5	00000000	0000	0000
3AB	1 1/2	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified	5	00000000	0000	0000
3AB	2	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified	5	00000000	0000	0000
3AB	2 1/2	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified	5	00000000	0000	0000
3AB	3	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified	5	00000000	0000	0000
3AB	4	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified	5	00000000	0000	0000
3AB	5	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified	5	0000000	0000	0000
3AB	6	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified	5	00000000	0000	0000
3AB	7	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified	5	00000000	0000	0000
3AB	8	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified	5	00000000	0000	0000
3AB	10	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified	5	00000000	0000	0000
3AB	12	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified	5	00000000	0000	0000
3AB	15	250V AC/125V DC	10,000 A @ 125 V AC 10,000 A @ 125 V DC	1 1/4"	1	UL Listed, CSA Certified	5	00000000	0000	0000
3AB	20	250V AC/125V DC	1,000 A @ 125 V AC 400 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified	5	00000000	00000	00000
3AB	25	250V AC/125V DC	1,000 A @ 125 V AC 400 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified	5	00000000	00000	00000
3AB	30	250V AC/125V DC	1,000 A @ 125 V AC 400 A @ 125 V DC	1 1/4"	1	UL Recognized Component, CSA Certified	5	00000000	00000	00000
Manufacturer Equivalent: 505
1/4" Overall Dia.
3AB	10	450V AC	20,000 A @ 450 V AC	1 1/4"	1	UL Recognized Component, C-UL Recognized Component	5	000000000	00000	00000
3AB	12	450V AC	20,000 A @ 450 V AC	1 1/4"	1	UL Recognized Component, C-UL Recognized Component	5	000000000	00000	00000
3AB	16	500V DC/500V AC	20,000 A @ 500 V DC 30,000 A @ 500 V AC	1 1/4"	1	UL Recognized Component, C-UL Recognized Component	5	000000000	00000	00000
3AB	20	500V DC/500V AC	20,000 A @ 500 V DC 30,000 A @ 500 V AC	1 1/4"	1	UL Recognized Component, C-UL Recognized Component	5	000000000	00000	00000
3AB	25	500V DC/500V AC	20,000 A @ 500 V DC 30,000 A @ 500 V AC	1 1/4"	1	UL Recognized Component, C-UL Recognized Component	5	000000000	00000	00000
3AB	30	500V DC/500V AC	20,000 A @ 500 V DC 30,000 A @ 500 V AC	1 1/4"	1	UL Recognized Component, C-UL Recognized Component	5	000000000	00000	00000

Glass-Tube and Ceramic-Tube Fuse Assortments

140-Fuse Kit

270-Fuse Kit

Maintain a supply of fast-acting and time-delay fuses.

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.

Fast-acting fuses open circuits quickly when surges are detected so they are suitable for resistive loads that do not have temporary overload current.

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

Current, A	Total Number of Pieces	Includes	Container Type		Each
1/4-30	140	3AB Ceramic-Tube Fast-Acting and Time-Delay Fuses, 3AG Glass-Tube Fast-Acting and Time-Delay Fuses, Fuse Clips, Fuse Holders	Plastic Box	000000	0000000
1/8-30	270	3AB Ceramic-Tube Fast-Acting and Time-Delay Fuses, 3AG Glass-Tube Fast-Acting and Time-Delay Fuses, 5mm Dia. Glass-Tube Fast-Acting Fuses, Fuse Block, Fuse Clips, Fuse Holders	Plastic Box	000000	000000

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About Fuses

Time-Delay Ceramic-Tube Fuses

Fast-Acting Ceramic-Tube Fuses

Glass-Tube and Ceramic-Tube Fuse Assortments