Mersen Ferraz Shawmut A4J350 Class J Fast-Acting Fuse, 350A, 600VAC/300VDC, Blade, Clip Mount, 200kA IR, Brass Terminals, 54×181.1mm, RoHS – Pack of 4

Mersen Ferraz Shawmut A4J350 Class J Fast-Acting Fuse, 350A, 600VAC/300VDC — Pack of 4

The A4J350 is a Mersen (Ferraz Shawmut) Amp-Trap Class J fast-acting fuse engineered for current-limiting protection across a broad range of industrial applications. Its Class J dimensions prevent misapplication with fuses of lower voltage or interrupt ratings. With 200 kA interrupting rating and low let-through, it provides robust short-circuit protection for feeders, branch circuits, and equipment.

Key Electrical Ratings

• Ampere rating: 350 A
• Voltage ratings: 600 VAC; 300 VDC (UL)
• Frequency: 50/60 Hz
• Interrupting rating (max IR): 200 kA AC
• Speed/Characteristic: Fast-Acting
• Fuse class: Class J
• AC/DC: Suitable for AC and DC circuits (per ratings)

Construction & Mounting

• Terminal type: Blade
• Mounting method: Clip mount (Class J holders)
• Terminal material: Brass alloy
• Body/insulating material: GMG
• Form factor: Class J dimensions to prevent substitution

Mechanical & Package Data

• Product length: 181.1 mm
• Body diameter: 54 mm
• Unit weight (typical): 0.7938 kg
• Compliance: RoHS Compliant
• UPC/EAN: 782001960438
• Pack quantity: 4 fuses

Applications

• Industrial distribution panels and MCCs
• Feeders and branch circuits
• Motor protection and control panels (when fast-acting Class J is specified)
• Equipment protection where current-limiting performance is required

Notes

• Use with compatible Class J fuse clips/holders.
• Verify coordination and application per NEC/UL guidelines and Mersen datasheet.

Package Contents

• 4 × Mersen Ferraz Shawmut A4J350 Class J fast-acting fuses (350 A, 600 VAC/300 VDC)