A4J100 - 100 Amp Fuse Description
A4J100 - 100 Amp Fuse
Looking for dependable protection for your high-current circuits? The Mersen A4J100 Amp-Trap® Class J Fast-Acting Fuse is designed to keep your electrical systems safe and running smoothly. Rated at 100 amps and compatible with 600VAC and 300VDC, this fast-acting fuse reacts instantly to overloads and short circuits, helping prevent costly equipment damage and downtime. Its blade-style terminals and unique design make sure only the correct fuse can be installed, so you won’t run into issues with improper replacements. Built with a sturdy GMG body and silver-plated copper terminals, the A4J100 delivers reliable conductivity and long-lasting performance—even in high fault-current environments. Whether you’re working with panelboards, motor control centers, or industrial machinery, this Class J fuse offers protection you can trust.
Key Features and Benefits
- Fast-acting Class J fuse for instant overcurrent protection
- 100 amp rating for heavy-duty applications
- Works with 600VAC and 300VDC systems
- 200 kA interrupting capacity handles high fault currents
- Blade-style terminals for secure connections
- Prevents substitution with lower-rated fuses
- Silver-plated copper terminals for consistent conductivity
- Durable GMG body built to last
- Compact design fits standard clips and holders
- ROHS compliant
Technical Specifications
- Manufacturer Part Number: A4J100
- Product Series: A4J – Class J – Fast-Acting
- Fuse Class: Class J
- Ampere Rating: 100A
- Rated Voltage AC: 600VAC
- Rated Voltage DC: 300VDC
- Frequency: 50/60 Hz
- Interrupting Rating: 200 kA AC
- Fuse Type: Fast-Acting
- Terminal Type: Blade
- Terminal Material: Silver-Plated Copper
- Mounting Method: Clip
- Body Material: GMG
- Product Diameter: 27 mm
- Product Length: 117.6 mm
- Product Weight: 0.1089 kg
- Sell Pack Quantity: 5
- Compliance: ROHS
Material Compliance and Certifications
- ROHS compliant, this fuse is built with high-quality materials to ensure long-lasting, reliable performance. Its GMG body and silver-plated copper terminals are designed to withstand demanding industrial and commercial conditions.
Where It Works Best
- Panelboards
- Motor control centers
- Industrial machinery
- High-current commercial electrical systems
- Any application needing fast, precise overcurrent protection
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Specifications
- Width:1.125
- Depth:1.125
- Height:4.625
- Amperes:100
- A.I.C. Rating & Volts:200 kA @ 600 V.AC
- Type:A4J
- Additional Notes:Knife-Blade Style, Non-Indicating, Fast-Acting, current-limiting Class J Fuse
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