A4BY4000-55BA - Mersen Class L Time Delay Fuse 4000A 600V

A4BY4000-55BA

A4BY4000-55BA is a Class L time-delay fuse rated for 4000 amperes at 600VAC and 300VDC, designed to protect service entrance equipment, feeder circuits, and circuit breakers.

This industrial-grade 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 fuse utilizes blade terminals with silver-plated construction for superior reliability in harsh environments. With a 200,000 AIC AC interrupting rating, the A4BY4000-55BA provides robust protection for high-amperage applications. The glass melamine body and unique Class L dimensions ensure one-way interchangeability and prevent replacement by other fuse classes.

• Amperage Rating: 4000A
• Voltage Rating: 600VAC / 300VDC
• Fuse Class: Class L
• Time Delay: 4 seconds minimum at 500% rating
• Interrupting Rating: 200,000 AIC AC
• Terminal Type: Blade with silver plating
• Body Material: Glass melamine
• Dimensions: 5 3/4 inches x 10 3/4 inches
• Weight: 32 lbs

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Specifications

• Part Number: A4BY4000-55BA
• Manufacturer : Eaton
• Brand : Cutler Hammer
• Category : Fuse
• Item Subcategory : Low Voltage Fuse
• Family : Amp-Trap
• Type : A4BY
• Voltage : 600
• Amperage : 4000

Product Data

• UPC : 782001938499
• GTIN : 00782001938499
• Weight : 11