A4BY3000-55AK - Mersen Class L Time-Delay Fuse 3000A 600VAC 300VDC

A4BY3000-55AK

A4BY3000-55AK is a Mersen Amp-Trap Class L time-delay fuse rated for 3000 amperes at 600VAC and 300VDC, designed for protecting service entrance equipment, feeder circuits, and circuit breakers.

This current-limiting fuse features a 4-second minimum time delay at 500% rating, allowing it to pass normal current surges while coordinating with ground fault relays. The A4BY3000-55AK is a 100% rated device suitable for continuous currents up to its ampere rating. Its unique Class L dimensions prevent replacement by other fuse classes, and blade-stamped catalog numbers provide permanent identification. The glass melamine body and silver-plated copper terminals deliver superior reliability in harsh environments.

• Amperage Rating: 3000A
• AC Voltage Rating: 600VAC
• DC Voltage Rating: 300VDC
• Fuse Class: UL Class L
• Response Time: Time Delay (4-second minimum)
• AC Interrupting Rating: 200,000 AIC
• DC Interrupting Rating: 100,000 AIC
• Mounting Type: Bolted Blade
• Physical Size: 5 inches x 10.75 inches
• Body Material: Glass Melamine
• Terminal Material: Silver-Plated Copper
• UL Listed to Standard 248-10 (601-6000A)
• CSA Certified to Standard C22.2 No. 248.10

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Specifications

• Part Number: A4BY3000-55AK
• Manufacturer : Mersen
• Brand : Ferraz Shawmut
• Category : Fuse
• Item Subcategory : Fuse Part
• Family : Amp-Trap
• Type : A4BY
• Voltage : 600
• Amperage : 3000
• AIC rating : 200kA@600V
• Connection : Bolt-In

Product Data

• UPC : 78200193839
• GTIN : 00782001938390
• Weight : 0.15