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
Save 10%

Pay in installments of $99.75 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 27 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Anna
Natrona Heights, US
★★★★★ 5
Good quality
Good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 6, 2026
F
Verified Purchase
Franke
San Leandro, US
★★★★★ 1
Item is not sent out as described
This item is not sent out as described. I only received 1 pack, instead of 6. Tried to explain that 5 were missing and received a replacement order of 1 pack. Very overpriced for a single pack.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
B
Verified Purchase
Bekkie D.
Cuba, US
★★★★★ 5
Premium Cotton Rounds
These are great cotton rounds, because they don't shed. I use them on my eyes twice a day, morning and night.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 26, 2025
G
Verified Purchase
golfinglenn
Lake Worth, US
★★★★★ 5
Good for your teeth
These are great tasting and good for your teeth. Was recommended by my dentist after lifesavers damaged my teeth. A little spendy but worth it if you enjoy hard candy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
L
Verified Purchase
Linda S
Carnegie, US
★★★★★ 5
Tasty sugar free treat!
My sister is about to begin chemotherapy and her oncologist shared that hard sugar free candies that contain xylitol would be very helpful with the dry mouth chemo is likely to create. I ordered these for her and she says they are delicious! Good natural fruit flavor…tasty for anyone who wants a better quality, healthier (in moderation) sweet treat now and then. Arrived promptly and container was undamaged.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026

recommand products