A4J Class J Power Fuses

Mersen A4J Class J Power Fuses provide excellent current-limiting protection to numerous applications. These fuses have unique dimensions that prevent the substitution of other fuses with lower ratings, interrupting ratings, or current-liming capability, providing additional protection against mismating. Constructed with a fiberglass body, dimensional stability is provided in harsh industrial environments, and the easy-to-read imprint label allows for quick recognition and replacement. Mersen A4J Class J Power Fuses are suitable for capacitors, load centers, switchboards, circuit breakers, feeder circuits, and panelboards.

Results: 16
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Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
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Voltage Rating AC
Fuse Type
Voltage Rating DC
Interrupt Rating
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Mersen Industrial & Electrical Fuses 600V 10A CLASS J FUSE
Datasheet
20In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 10 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Clip Class aR Fuses Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 100A CLASS J FUSE
Datasheet
60In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 100 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Knife Blade Class aR Fuses Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 40A CLASS J FUSE
Datasheet
20In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 40 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Clip Class aR Fuses Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 80A CLASS J FUSE
Datasheet
15In Stock
Min.: 1
Mult.: 1

Current Limiting Fuses 80 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Knife Blade Class T Fuses Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 125A CLASS J FUSE
Datasheet
3In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 125 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Knife Blade Class aR Fuses Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 150A CLASS J FUSE
Datasheet
2In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 150 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Knife Blade Class aR Fuses Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 175A CLASS J FUSE
Datasheet
1In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 175 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Knife Blade Class aR Fuses Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 20A CLASS J FUSE
Datasheet
17In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 20 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Clip Class aR Fuses Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 30A CLASS J FUSE
Datasheet
16In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 30 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Clip Class aR Fuses Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 50A CLASS J FUSE
Datasheet
4In Stock
Min.: 1
Mult.: 1

Current Limiting Fuses 50 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Clip Class T Fuses Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 60A CLASS J FUSE
Datasheet
11In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 60 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Clip Class aR Fuses Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 70A CLASS J FUSE
Datasheet
6In Stock
Min.: 1
Mult.: 1

Current Limiting Fuses 70 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Knife Blade Class J Fuses Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 200A CLASS J FUSE
Datasheet
3In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 200 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Knife Blade Class aR Fuses Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 3A CLASS J FUSE
Datasheet
10In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 3 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Clip Class aR Fuses Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 15A CLASS J FUSE
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1
Mult.: 1

Semiconductor Fuses 15 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Clip Class aR Fuses Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 25A CLASS J FUSE
Datasheet
16Expected 12/8/2026
Min.: 1
Mult.: 1

Semiconductor Fuses 25 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Clip Class aR Fuses Without Indicator Box