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.
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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

Class J Fuses 10 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Clip Class J Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 100A CLASS J FUSE
Datasheet
63In Stock
Min.: 1
Mult.: 1

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

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

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

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

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

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

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

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

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

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

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

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

Class J Fuses 3 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Clip Class J Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 25A CLASS J FUSE
Datasheet
12Expected 3/8/2026
Min.: 1
Mult.: 1

Class J Fuses 25 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Clip Class J Without Indicator Box
Mersen Industrial & Electrical Fuses 600V 15A CLASS J FUSE
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

Class J Fuses 15 A 600 VAC Fast-Acting Fuses 300 VDC 200 kA Clip Class J Without Indicator Box