A4BY1600 - 1600Amp Fuse

A4BY1600 - 1600Amp Fuse

The Mersen A4BY1600 Amp-Trap® Class L Time-Delay Fuse is built for heavy-duty protection in industrial and commercial electrical systems. Rated at 1600 amps, it offers dependable circuit protection for service entrance equipment, feeder circuits, and circuit breakers, ensuring your systems stay safe even under demanding loads. Its time-delay feature allows it to handle short, harmless surges without tripping, giving sensitive equipment the protection it needs without unnecessary downtime. With a high interrupting capacity of 200kA AC and silver-plated copper blade terminals, the A4BY1600 combines performance, reliability, and ease of installation for operators and electricians alike.

This fuse is designed for continuous duty up to its ampere rating, and its durable glass melamine (GMG) body offers long-term dimensional stability under high-current conditions. Whether you’re protecting a commercial distribution panel, industrial machinery, or a critical feeder line, the A4BY1600 provides peace of mind with its proven performance and clear, easy-to-read markings for quick identification.

Key Features and Benefits

• Time-delay design passes harmless surges without tripping
• 1600A rating suitable for high-current service entrance and feeder circuits
• Rated for 600VAC and 300VDC applications
• High interrupting capacity up to 200kA AC
• Silver-plated copper blade terminals ensure secure and reliable connection
• Durable glass melamine (GMG) body maintains dimensional stability
• Continuous-duty capability at full ampere rating
• Easy-to-read markings simplify maintenance and replacement
• Bolt-mounted installation for secure connections

Technical Specifications

• Catalog Number: A4BY1600
• Series: A4BY – Class L – Time-Delay
• Fuse Class: Class L
• Amp Rating: 1600A
• Voltage Rating: 600VAC / 300VDC
• Frequency: 50/60 Hz
• Speed/Characteristic: Time-Delay
• Mounting: Bolted
• Connection Type: Blade
• Connection Material: Silver-Plated Copper
• AC Max Interrupting Rating: 200kA
• Body Material: GMG (Glass Melamine)
• Product Diameter: 76.2 mm
• Product Length: 273 mm
• Product Weight: 2.708 kg

Material Compliance and Certifications

• RoHS Compliant
• Designed for low-voltage UL/CSA applications

Where It Works Best

• Service entrance panels
• Feeder circuits and distribution systems
• Industrial machinery protection
• Commercial power systems
• Circuit breakers in critical electrical infrastructure