3AG Fuses | McMaster-Carr

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About Fuses

1/4" Dia.

These fuses open circuits quickly when surges are detected. The clear glass tube makes it easy to see when fuses open. Use them with electronics, control panels, and other sensitive components. Select them by their diameter. Designed for use with Fuse Blocks for Glass-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.

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

										Pkg.
Fuse Trade Size	Current, A	Voltage	Breakthrough Current	Overall Lg.	No. of Elements	Blown Fuse Indicator	Specifications Met	Pkg. Qty.		1-9	10-Up
Manufacturer Equivalent: 312, AGC, GGC
1/4" Overall Dia.
3AG	1/16	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	000000	000000
3AG	1/10	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	00000	00000
3AG	1/8	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	00000	00000
3AG	1/4	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	00000	00000
3AG	3/10	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	00000000	00000	00000
3AG	3/8	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	00000000	00000	00000
3AG	1/2	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	0000	0000
3AG	3/4	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	0000	0000
3AG	1	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	0000	0000
3AG	1 1/4	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	00000000	0000	0000
3AG	1 1/2	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	0000	0000
3AG	2	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	0000	0000
3AG	2 1/2	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	0000	0000
3AG	3	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	0000	0000
3AG	4	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	0000	0000
3AG	5	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	0000	0000
3AG	6	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	0000	0000
3AG	7	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	0000	0000
3AG	8	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	0000	0000
3AG	10	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	00000000	0000	0000
3AG	12	32V AC	300 A @ 32 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	0000	0000
3AG	15	32V AC	300 A @ 32 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	0000	0000
3AG	20	32V AC	300 A @ 32 V AC	1 1/4"	1	Yes	UL Listed	5	00000000	0000	0000
3AG	25	32V AC	300 A @ 32 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	0000	0000
3AG	30	32V AC	300 A @ 32 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	0000	0000
3AG	35	32V AC	300 A @ 32 V AC	1 1/4"	1	Yes	__	5	0000000	0000	0000

Time-Delay Glass-Tube Fuses

1/4" Dia.

Able to withstand current overload for a short time, these fuses will not open when exposed to harmless temporary surges. The clear glass tube makes it easy to see when fuses open. Use them with electronics, control panels, and other sensitive components. Select these fuses by their diameters. Designed for use with Fuse Blocks for Glass-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.

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

										Pkg.
Fuse Trade Size	Current, A	Voltage	Breakthrough Current	Overall Lg.	No. of Elements	Blown Fuse Indicator	Specifications Met	Pkg. Qty.		1-9	10-Up
Manufacturer Equivalent: 313, GDL, MDL
1/4" Overall Dia.
3AG	1/10	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	000000	000000
3AG	1/8	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	00000	00000
3AG	2/10	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	00000000	00000	00000
3AG	1/4	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	00000	00000
3AG	1/2	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	00000	00000
3AG	3/4	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	00000	00000
3AG	1	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	00000	00000
3AG	1 1/2	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	00000	00000
3AG	2	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	00000	00000
3AG	2 1/2	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	00000	00000
3AG	3	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	00000	00000
3AG	3 2/10	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	00000000	00000	00000
3AG	4	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	00000	00000
3AG	5	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	00000	00000
3AG	6 1/4	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	00000	00000
3AG	7	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	0000000	00000	00000
3AG	8	250V AC	10,000 A @ 125 V AC	1 1/4"	1	Yes	UL Listed	5	00000000	00000	00000
3AG	10	32V AC	300 A @ 32 V AC	1 1/4"	1	Yes	UL Recognized Component	5	0000000	00000	00000
3AG	15	32V AC	300 A @ 32 V AC	1 1/4"	1	Yes	UL Recognized Component	5	0000000	00000	00000
3AG	20	32V AC	300 A @ 32 V AC	1 1/4"	1	Yes	UL Recognized Component	5	00000000	00000	00000
3AG	25	32V AC	300 A @ 32 V AC	1 1/4"	1	Yes	UL Recognized Component	5	0000000	00000	00000
3AG	30	32V AC	300 A @ 32 V AC	1 1/4"	1	Yes	UL Recognized Component	5	0000000	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

Automotive and Glass-Tube Fuse Assortments

Includes a variety of blade-style automotive fuses and fast-acting glass-tube fuses.

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

Total Number of Pieces	Includes	Container Type	Specifications Met		Each
180	135 assorted Mini-Blade, Standard-Blade, and Maxi-Blade Fast-Acting and Time-Delay Automotive Fuses; 45 assorted Fast-Acting 3AG Glass-Tube Fuses; Three Fuse Puller/Testers	Plastic Box	UL Listed	0000000	0000000

Inline Fuse Holders for Glass-Tube and Ceramic-Tube Fuses

Add fuse protection to a single wire.

		For Fuse
	For No. of Fuses	Trade Size	Current, A	Overall Dia.	Overall Lg.	Voltage	Wire Connection Type	For Max. Wire Gauge	Lg.	Ht.	Material	Environment		Each
For Fuse Manufacturer Equivalent: 312, 313, 314, 322, 326, 505, ABC, AGC, GAB, GBB, GDL, GGC, GSA, MDA, MDL
A	1	3AB, 3AG	1/10-20	1/4"	1 1/4"	32V AC	Wire Lead	14	2.19"	0.69"	Plastic	__	0000000	00000
B	1	3AB, 3AG	1/10-30	1/4"	1 1/4"	32V AC	Crimp On	12	3"	0.75"	Rubber	Washdown	0000000	00000
C	1	3AB, 3AG	1/10-20	1/4"	1 1/4"	250V AC/250V DC	Crimp On	12	3.22"	0.8"	Plastic	Washdown	0000000	00000
For Fuse Manufacturer Equivalent: 312, 313, 314, 322, 326, 505, ABC, AGC, AGX, GAB, GBB, GDL, GGC, GGX, GSA, MDA, MDL
D	1	3AB, 3AG, 8AG	1/10-30	1/4"	1", 1 1/4"	32V AC	Crimp On	12	2.42"	0.53"	Plastic	__	0000000	0000

Panel-Mount Fuse Holders for Glass-Tube and Ceramic-Tube Fuses

For 3AB, 3AG, and 5
mm Fuses with Straight
Quick-Disconnect Terminal

For 3AB, 3AG, and5 mm
Fuses with 90° Elbow
Quick-Disconnect Terminal

Insert glass- and ceramic-tube fuses into holders and twist the cover closed.

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

	For Fuse					Quick-Disconnect Tab		For Panel Cutout
For No. of Fuses	Trade Size	Current, A	Overall Dia.	Overall Lg.	Voltage	Wd.	Shape	Ht.	Wd.	For Panel Thick.	Lg.	Material	Specifications Met		Each
For Fuse Manufacturer Equivalent: 312, 313, 314, 322, 326, 505, ABC, AGC, GAB, GBB, GDL, GGC, GSA, MDA, MDL
1	3AB, 3AG	1/10-20	1/4"	1 1/4"	250V AC	0.187"	Straight	0.51"	0.46"	0.13"	1.69"	Plastic	UL Recognized Component	0000000	00000
1	3AB, 3AG	1/10-20	1/4"	1 1/4"	250V AC	0.187"	90° Elbow	0.51"	0.47"	0.13"	1.69"	Plastic	UL Recognized Component	0000000	0000
1	3AB, 3AG	1/10-20	1/4"	1 1/4"	250V AC	0.25"	Straight	0.51"	0.46"	0.13"	1.69"	Plastic	UL Recognized Component	0000000	0000
1	3AB, 3AG	1/10-20	1/4"	1 1/4"	250V AC	0.25"	90° Elbow	0.51"	0.47"	0.13"	1.69"	Plastic	UL Recognized Component	0000000	0000

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About Fuses

Fast-Acting Glass-Tube Fuses

Time-Delay Glass-Tube Fuses

Glass-Tube and Ceramic-Tube Fuse Assortments

Automotive and Glass-Tube Fuse Assortments

Inline Fuse Holders for Glass-Tube and Ceramic-Tube Fuses

Panel-Mount Fuse Holders for Glass-Tube and Ceramic-Tube Fuses