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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-R, FNQ-R, KLD-R | |||||||||||
3/4 | 600V AC | 200,000 A @ 600 V AC | 1 1/2" | 13/32" | 1 | Ferrule | Yes | UL Listed | 0000000 | 000000 | 000000 |
UL Class CC Fast-Acting Midget Fuses

These fuses open circuits quickly when surges are detected. They provide comparable performance with a smaller footprint than standard size fuses. Use them in power distribution branch circuits. All have a rejection-style end that safeguards against replacement errors. 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: ATM-R, KLK-R, KTK-R | ||||||||||
3/4 | 600V AC | 200,000 A @ 600 V AC | 1 1/2" | 13/32" | 1 | Ferrule | UL Listed | 00000000 | 000000 | 000000 |
Fast-Acting Glass-Tube Fuses


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: 225, C520, SMG | |||||||||||
0.18" Overall Dia. | |||||||||||
2AG | 3/4 | 250V AC | 10,000 A @ 125 V AC | 0.57" | 1 | Yes | UL Listed, CSA Certified | 5 | 0000000 | 00000 | 00000 |
Manufacturer Equivalent: 312, AGC, GGC | |||||||||||
1/4" Overall Dia. | |||||||||||
3AG | 3/4 | 250V AC | 10,000 A @ 125 V AC | 1 1/4" | 1 | Yes | UL Listed | 5 | 0000000 | 0000 | 0000 |
Time-Delay Glass-Tube Fuses


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: 229, C519, STG | |||||||||||
0.18" Overall Dia. | |||||||||||
2AG | 3/4 | 250V AC | 10,000 A @ 125 V AC | 0.57" | 1 | Yes | UL Listed, CSA Certified | 5 | 0000000 | 000000 | 00000 |
Manufacturer Equivalent: 313, GDL, MDL | |||||||||||
1/4" Overall Dia. | |||||||||||
3AG | 3/4 | 250V AC | 10,000 A @ 125 V AC | 1 1/4" | 1 | Yes | UL Listed | 5 | 0000000 | 00000 | 00000 |
Time-Delay Ceramic-Tube Fuses

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 | 3/4 | 250V AC | 10,000 A @ 125 V AC | 1 1/4" | 1 | UL Listed, CSA Certified, CE Marked | 000000000 | 00000 | 00000 |
Fast-Acting Ceramic-Tube Fuses

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.
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 | 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 | 00000 | 00000 |
Fast-Acting Midget Fuses

These fuses open circuits quickly when surges are detected. Use them to protect equipment—they are not designed for power distribution circuits. Designed for use with Fuse Blocks for Midget 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: ATM, DCM, KLKD | ||||||||||
3/4 | 600V AC/600V DC | 10,000 A @ 600 V DC 100,000 A @ 600 V AC | 1 1/2" | 13/32" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |