Fuse Amp-Trap® 600V 3500A Time-Delay Class L A4BY Series

The Fuse Amp-Trap® A4BY Series is a Class L, 600V time-delay fuse designed for protecting service entrance equipment, feeder circuits, and circuit breakers. It is suitable for applications including mains feeders, load centers, panelboards, switchboards, and metering centers. This fuse is a key product for electrical distributors and switchgear suppliers requiring reliable current-limiting protection with coordination capabilities for ground fault relays.

Specifications

• Amperage Rating: 3500 A
• Voltage Rating: 600 VAC / 300 VDC
• Interrupt Rating: 200 kA
• Fuse Class: Class L
• Connection: Blade
• Mounting Type: Bolted
• Dimensions (L x W x H): 10.75 in x 5.75 in x 5.75 in
• Diameter: 5.75 inches
• Product Weight: 25.2 lbs
• Insulation Material: Glass Melamine (GMG)
• Manufacturer: Mersen
• Manufacturer Part Number: A4BY3500

Features

• 100% rated for continuous current up to ampere rating
• 4-second minimum time-delay at 500% rating to allow normal current surges
• Current-limiting design reduces damage during fault conditions
• Blade stamped catalog numbers for permanent identification
• Glass melamine body and plated terminals provide superior reliability in harsh environments
• Unique dimensions prevent replacement by other fuse classes
• UL listed and CSA certified for safety and performance

Downloads & Links

• Spec Sheet
• Curves 1
• Spec Sheet FR
• Drawings
• Curves 2