Fuse Amp-Trap® 600V 750A Time-Delay Class L A4BY Series

Fuse Amp-Trap® 600V 750A Time-Delay Class L A4BY Series The Fuse Amp-Trap® A4BY Series is a 600V, 750A time-delay Class L fuse designed for protecting service entrance equipment, feeder circuits, circuit breakers, load centers, panelboards, switchboards, and metering centers. This current-limiting fuse is suitable for continuous current applications up to its ampere rating and features a 4-second minimum time delay at 500% rating to allow normal current surges and coordination with ground fault relays. It is an essential component for electrical distributors and switchgear suppliers focused on reliable circuit protection. Specifications Manufacturer: Mersen Manufacturer Part #: A4BY750 Voltage Rating: 600 VAC Amperage Rating: 750 A Interrupt Rating: 200 kA Fuse Class: Class L Connection Type: Blade Mounting Type: Bolted Dimensions: 8.63 in length × 2 in width × 2 in height Insulation Material: GMG (Glass Melamine) Product Weight: 3.64 lbs Features 100% rated device for continuous current up to ampere rating 4-second minimum time delay at 500% rating for surge tolerance and coordination Current-limiting design to reduce fault energy Unique dimensions preventing replacement by other fuse classes Blade-stamped catalog numbers for permanent identification Glass melamine body and plated terminals for superior reliability in harsh environments Downloads & Links Spec Sheet Curves 1 Spec Sheet FR Curves 2 Drawings