Fuse Amp-Trap® 600V 601A Time-Delay Class L A4BY Series

The Fuse Amp-Trap® A4BY Series is a Class L, 600V rated time-delay fuse designed for protecting service entrance equipment, feeder circuits, circuit breakers, load centers, panelboards, switchboards, and metering centers. As a key component in electrical distribution, this fuse is suitable for use by electrical distributors and switchgear suppliers requiring reliable current-limiting protection with coordination for ground fault relays. The A4BY fuse supports continuous currents up to its ampere rating and features a 4-second minimum time delay at 500% rating to allow normal current surges to pass without nuisance interruptions.

Specifications

• Amperage Rating: 601 A
• Voltage Rating: 600 VAC, 300 VDC
• Interrupt Rating: 200 kA
• Fuse Class: Class L
• Dimensions (L x W x H): 8.63 in x 2 in x 2 in
• Mounting Type: Bolted
• Connection: Blade
• Insulation Material: GMG
• Product Weight: 3.64 lbs
• Manufacturer: Mersen
• Manufacturer Part #: A4BY601

Features

• Current-limiting design to reduce fault energy and improve system protection
• 4-second time delay at 500% rating for coordination with ground fault relays and to pass normal surges
• Glass melamine body and plated terminals for superior reliability in harsh environments
• Unique dimensions prevent replacement by other fuse classes, ensuring proper fit and safety
• Blade stamped catalog numbers for permanent identification
• UL and CSA listed to applicable standards for safety and performance

Downloads & Links

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