A4J100 - 100 Amp Fuse

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