SKU: 55288802466

A4BY4000 -Gould Mersen Ferraz Shawmut 4000A 600V AC Class L Time Delay Current Limiting Fuse

Sale price$359.10 Regular price$399.00
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Description

A4BY4000 -Gould Mersen Ferraz Shawmut 4000A 600V AC Class L Time Delay Current Limiting FuseProduct Title Mersen A4BY4000 4000A 600V AC Class L Time Delay Current Limiting Fuse Product Description The Mersen A4BY4000 is a 4000 Amp, 600V AC Class L time delay current limiting fuse engineered for high demand industrial and commercial electrical protection. Its 4 second minimum time delay allows temporary overloads without interrupting normal operation, while the current limiting design reduces damage during short circuit events. This fuse

Product Title

Mersen A4BY4000 – 4000A 600V AC Class L Time-Delay Current-Limiting Fuse


Product Description

The Mersen A4BY4000 is a 4000 Amp, 600V AC Class L time-delay current-limiting fuse engineered for high-demand industrial and commercial electrical protection. Its 4-second minimum time delay allows temporary overloads without interrupting normal operation, while the current-limiting design reduces damage during short-circuit events.

This fuse features blade mounting for secure installation, a durable glass melamine body, and plated terminals for long-lasting performance in harsh environments. The A4BY4000 is UL and CSA certified, with a 200,000 AIC AC interrupting rating and 100,000 AIC DC interrupting rating, ensuring reliable protection in both AC and DC circuits. Its unique dimensions prevent replacement with other fuse types, maintaining safety and correct application.


Key Features

  • Amperage: 4000A

  • Voltage: 600V AC / 300V DC

  • Type: Class L Time-Delay Current-Limiting Fuse

  • Time Delay: Minimum 4 seconds

  • Mounting Type: Blade

  • AC Interrupting Rating: 200,000 AIC

  • DC Interrupting Rating: 100,000 AIC

  • UL Listed: UL 248-10

  • CSA Certified: C22.2 No. 248.10

  • Durable Construction: Glass melamine body with plated terminals

  • Prevents incorrect fuse replacement


Technical Specifications

  • Manufacturer: Mersen (Ferraz Shawmut)

  • Catalog Number / Part Number: A4BY4000

  • Fuse Class: L

  • Barrels: 1

  • Family / Series: AKR / A4BY

  • Diameter: 5.75 in

  • Weight: 30 lbs


Product Data

  • UPC: 782001939298

  • GTIN: 00782001939298

  • Provides reliable short-circuit and overload protection

  • Ideal for industrial power distribution, switchgear, and high-demand applications

  • Designed for safe, correct installation in Class L fuse holders

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 55288802466

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Based on 21 reviews
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Shanea Kirk
Draper, US
★★★★★ 3
They're ok. Not the best, but not terrible.
Size: 18 Short, Color: Medium Blue
I realize these are skinny jeans, but the legs are :very: skinny. Not as stretchy as they should be so size feels like it runs small as a result.
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Reviewed in the United States on June 9, 2026
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Debra R Singleton
Los Angeles, US
★★★★★ 5
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Size: 14, Color: Iced Blue Light Wash
Amazon Essentials Women's High Stretch Jeans receives positive reviews from me for their significant stretch, comfort, and flattering fit. The jeans are great for everyday wear, they feel soft and thick yet move well. Although some folks find sizing inconsistent, occasionally needing to size up or experiencing a slightly odd fit in certain areas. They're praised for looking good, offering good value, and being versatile enough for various occasions. Sizing can be hit-or-miss for some, but not for me.
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Reviewed in the United States on December 31, 2025
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Lesi
Massapequa, US
★★★★★ 1
Weird garbage
Size: 12 Long, Color: Iced Blue Light Wash
Very strange fit, saw the reviews about weird fit but so many others said great fit so that's on me. Got them for under 10 bucks so hard to complain..... however..... Got 12 Long. They are at least a size too big but I generally do that to accommodate shrinking especially length. On what planet these would be considered long I dunno. I'm only 5'8". If you pull them up to where crotch is not sagging, barely to my ankles. Almost long enough if you want the crotch to droop several inches. Fit loose but comfortable in butt and thighs. The waist however is about 4 inches too big and gaps horribly. Almost like waist is actually wider than hips. Strange. Not skinny cut except for right at ankle. The left leg inseam is cut horribly crooked and runs down almost front of leg so altering them is not worth the trouble. They are fairly thick and do stretch, like the denim wash very much. So disappointed. So the great deal I thought I was getting was garbage . Should have know for that price they were unloading their trash
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Reviewed in the United States on June 10, 2026
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Draper, US
★★★★★ 5
Perfect fit for 5'10
Size: 10 Long, Color: White
White jeans size 10 long fit perfectly. Im 5'10 130 pounds Always have trouble with length and overall fit. These were on sale for less than 11$! Material has some stretch, not too much. I'm going to hang to dry don't want any shrinkage. Fit is less tight than an earlier version of these jeans.
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Reviewed in the United States on May 6, 2026
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SB73
West Palm Beach, US
★★★★★ 5
Stylish Denim Look Dress
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