Fuse Amp-Trap® 600V 700A Time-Delay Class L A4BY Series

The Fuse Amp-Trap® A4BY Series is a Class L time-delay fuse designed for protecting service entrance equipment, feeder circuits, and circuit breakers. This product is suitable for electrical distributors and switchgear suppliers requiring reliable and high-performance protection in mains feeders, load centers, panelboards, switchboards, and metering centers. The fuse features a 4-second minimum time delay at 500% rating to allow normal current surges and coordination with ground fault relays, making it ideal for continuous current applications up to its ampere rating.

Specifications

• Voltage Rating: 600 VAC, 300 VDC
• Amperage Rating: 700 A
• Interrupt Rating: 200 kA
• Fuse Class: Class L
• Dimensions (L x W x H): 8.63 in x 2 in x 2 in
• Diameter: 2 inches
• Mounting Type: Bolted
• Connection Type: Blade
• Insulation Material: GMG (Glass Melamine)
• Product Weight: 3.64 lbs
• Manufacturer: Mersen
• Manufacturer Part Number: A4BY700

Features

• 100% rated device for continuous current application
• 4-second minimum time delay at 500% rating for surge tolerance and relay coordination
• Current-limiting design enhances system protection
• Unique dimensions prevent replacement by other fuse classes
• Blade stamped catalog numbers for permanent identification
• Glass melamine body and plated terminals provide superior reliability in harsh environments
• UL and CSA listed to applicable standards for safety and performance

Downloads & Links

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