Mersen 9F62HCB050 - Medium Voltage E-Rated Fuse 5500VAC 50A Ferrule, Series: HCB Visual Indicator Amp-Trap®
Mersen

9F62HCB050

Alternate Item Number: 782001395971

UPC: 782001395971


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Overview

Mersen 9F62HCB050 is a medium voltage E-rated fuse designed for transformer and distribution line protection in industrial and utility applications. Rated at 5500VAC and 50A, this Amp-Trap® fuse provides reliable overload and short-circuit protection by melting at currents as low as 1.7 times its rated value up to its maximum interrupting rating of 50kA RMS symmetrical. The fuse is engineered to withstand transformer magnetizing inrush current, ensuring consistent and dependable operation during startup transients without nuisance tripping. Available in three barrel configurations—2" (size C), 3" (size D), and 2x3" (size DD) diameter—each with integrated ferrules for secure mounting, these fuses are installed in spring-reinforced clips to maintain consistent contact and reduce installation time. The HCB series includes a built-in visual indicator that provides immediate status verification, allowing for quick identification of blown fuses without additional testing equipment. Designed for medium voltage systems up to 5500VAC, this fuse is optimized for applications requiring precise fault protection, high interrupting capacity, and long-term reliability in demanding electrical environments.
  • 5500VAC rated voltage for medium voltage applications
  • 50A current rating with E-rated protection
  • Amp-Trap® technology for overload and short-circuit protection
  • Visual indicator for quick status verification
  • Available in 2", 3", and 2x3" barrel sizes with ferrules
  • Designed to withstand transformer magnetizing inrush current
  • Mounted in spring-reinforced clips for secure installation

Specifications

AC Voltage Rating
5500 V
Amperage Rating
50 A
Application
Protection for up to 5.5 kV transformers or distribution systems.
Body Material
Epoxy
Brand Name
Mersen
Connection
Ferrule
Connection Material
Silver-Plated Copper
Connection Type
Ferrule
Current Rating
50 A
Interrupt Rating
50 kA
Mounting
Clip
Mounting Type
Spring reinforced clips
Series
HCB
Size
2" (size C), 3" (size D), 2x3" (size DD)
Size
14.18 x 2 in
Size
360.172 x 50.8 mm
Special Features
Amp-Trap CS-3 and 9F62 series are UL listed for compatibility with UL listed equipment Ferrule mounting for standard clips and interchangeability with other brands of fuses Current-limiting for superior equipment protection Non-venting for silent operation Metal embossed catalog number and manufacturing date for lasting identification Outdoor usage for the 9F62 and 9F60 type EJO Blown-fuse indicator to give positive identification of open fuse: Amp-Trap: 2" Barrel 1 lb tripped force - 0.19 Inch Amp-Trap: 3" Barrel 2 lb tripped force - 0.50 Inch 9F60/9F62: 0.125 lb tripped force – 0.20 Inch
Standard
Some UL listed to standard File E143362
Sub Brand
Amp-Trap®
Type
General Purpose Ferrule Mount Fuses for Transformer Protection
Type Of Indicators
Visual Indicator
Voltage Rating
5500 VAC
Package Dimensions (L x W x H)
14.18 in x 2 in x 2 in
Package Dimensions (L x W x H)
360.172 mm x 50.8 mm x 50.8 mm
Package Weight (Imperial)
3.300 lb
Package Weight (Metric)
1.497 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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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.