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Mersen A4BT600 - Fuse A4BT - Class L - Time-Delay 600VAC 500VDC 600A Blade Amp-Trap®
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Mersen A4BT600 Fuse A4BT - Class L - Time-Delay 600VAC 500VDC 600A Blade Amp-Trap®

Alternate Item Number: A4BT600

UPC: 782001939861


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Technical DrawingLine DrawingSpecification Sheet

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Mersen A4BT600 Amp-Trap® Class L time-delay fuse (SKU: A4BT600) delivers reliable overcurrent protection for industrial power systems. Rated at 600 Amperes, this blade-type fuse operates at 600 Volts AC or 500 Volts DC, making it suitable for both AC and DC applications. Its 10-second time delay at 500% of rated current prevents nuisance tripping during motor startups and high-inrush loads while still providing robust protection against sustained overloads and short circuits. The A4BT600 supports 100% equipment rating for normal loads, maximizing ampere capacity without compromising safety. With a high interrupting rating of 200kA AC and 100kA DC, this fuse is ideal for critical mains, feeder, and general circuit protection in demanding electrical distribution systems. Its unique dimensions ensure one-way interchangeability within Class L fuses, while blade-stamped catalog numbers and a glass melamine body with plated terminals enhance durability in harsh environments. Compatible with standard Class L fuse holders, the A4BT600 is a dependable choice for safeguarding motors, motor controllers, transformers, and other high-current industrial equipment.
  • 600A rated Class L time-delay fuse for 600VAC/500VDC systems
  • 10-second delay at 500% rated current prevents nuisance tripping
  • 200kA AC / 100kA DC interrupting rating for critical protection
  • Supports 100% equipment rating for normal loads
  • Blade-type design compatible with standard Class L fuse holders

Specifications

AC Voltage Rating
600 V
Amperage Rating
600 A
Application
Motors Motor controllers Transformers Mains Feeders
Body Material
GMG
Brand Name
Mersen
Class
Class L
Connection
Blade
Connection Material
Silver-Plated Copper
Connection Type
Blade
Current Rating
600 A
Interrupt Rating
200 kA
Mounting
Bolted
Nema Rating
Class L
Series
A4BT
Series
Amp-Trap Class L
Size
8.63 x 2;219.202 x 50.8 in;mm
Size
8.63 x 2 in
Size
219.202 x 50.8 mm
Special Features
Unique dimensions prevent replacement by other fuse classes. Blade-stamped catalog numbers for permanent identification Glass melamine body and plated terminals provide superior reliability in harsh environments
Standard
UL Listed to Standard 248-10, File E2137 CSA Certified to Standard C22.2, No. 248.68 Self-certified for DC per UL248 (601-2000)
Sub Brand
Amp-Trap®
Type
Class L
Voltage Rating
600 VAC
Package Dimensions (L x W x H)
8.63 in x 2 in x 2 in
Package Dimensions (L x W x H)
219.202 mm x 50.8 mm x 50.8 mm
Package Weight (Imperial)
2.410 lb
Package Weight (Metric)
1.093 kg
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POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

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Frequently Asked Questions about Mersen

What industries and applications are Mersen products used for?

Mersen products are used across diverse industrial sectors including solar power, electric vehicles, buildings/construction, industrial automation, power distribution, HVAC, elevators, telecommunications, and specialty manufacturing. Key application areas include circuit protection, surge protection, battery module protection, electrical safety systems, and power management for residential, commercial, and utility-scale installations.

What are the main product lines offered by Mersen?

Mersen offers five primary electrical power product lines: IEC and UL/CSA Fuses and Fusegear, Surge Protection, Low Voltage Disconnect Switches, Power Distribution Blocks, and Engineered Solutions. Their comprehensive range includes specialized components like high-speed fuses, modular fuse holders, surge arresters, and custom-engineered electrical protection systems for industrial and power management applications.

What are the key features of Mersen products?

Mersen products feature advanced electrical protection and power management solutions with key characteristics including finger-safe design, compact modularity, and high-performance safety features. Their product lines span electrical power components like fuses, surge protection, power distribution blocks, and specialized solutions for industrial, solar, and building applications. Critical features include UL/CSA approvals, high short-circuit current ratings, and innovative technologies like the Fuse Control™ program that minimize electrical risks and optimize system performance.

What environmental ratings do Mersen products have?

Mersen products meet rigorous environmental ratings across multiple standards, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13, CSA Type 1, 2, 3, 4, 4X, 12, and 13, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13. They feature IEC 60529 IP66 protection, with enhanced UV inhibitors for outdoor weathering and operating temperatures ranging from -40°C to 130°C (-40°F to 266°F). These ratings ensure superior protection in wet, corrosive, and challenging industrial environments.

What accessories are available for Mersen products?

Mersen offers multiple accessories for their fuse blocks and systems, including safety pullers (DFC3M and DFC3LP), DIN-rail adapters (DRM), bus bars, auxiliary contacts, and specialized mounting hardware. Key accessories include the DFC3M safety puller for 1-1/2" x 13/32" midget or Class CC fuses, the DRM adapter for mounting 303 series fuse blocks on DIN-rail, and UltraSafe fuse module accessories like bus bars and auxiliary contacts that enable module interconnection and monitoring.

How are Mersen products typically installed?

Mersen products are typically installed in electrical distribution systems, control panels, and industrial automation environments using multiple mounting options. These include service entrance panel mounting, distribution panel installation, control panel DIN rail mounting, and custom engineered solutions like Fused Coordination Panelboards. Installation depends on the specific product type, such as fuses, surge protective devices, or switches, and is designed to provide electrical protection and circuit safety in various industrial and commercial applications.

What certifications and standards do Mersen products comply with?

Mersen products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Our products meet rigorous safety and performance standards for industrial applications across North America, China, Russia, and other global markets, ensuring compliance and reliability in electrical power and advanced materials solutions.

What technical support does Mersen offer?

Mersen provides comprehensive technical support through multiple channels, including technical experts located in your time zone who can assist with product selection, application guidance, and troubleshooting. Their Fuse Control™ program offers a free Fuse Inventory Audit & Analysis, and customers can access technical resources through their sales representatives and online platform ep.mersen.com.