Mersen FTFH - Mersen forklift truck and battery isolator fuses are specially designed for the heavy duty loads associated with DC battery powered equipment such as forklift trucks, hand trucks, motorized work platforms, and other DC battery operated systems. Rugged construction and stud mounted bolt-in design assure a long life in adverse conditions for these fuses. This expanded line of forklift truck fuses can fulfill virtually all of your heavy duty circuit protection needs up to 125V AC or DC. Holder
Mersen

FTFH

Alternate Item Number: 782001339326

UPC: 782001339326


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Overview

Mersen FTFH forklift truck and battery isolator fuses (SKU: FTFH) deliver specialized circuit protection for heavy-duty DC battery-powered equipment, including forklift trucks, hand trucks, motorized work platforms, and industrial DC systems. Engineered for rugged environments, these fuses feature a stud-mounted bolt-in design that ensures secure installation and long-lasting performance in adverse conditions. The FTFH series supports AC/DC operation up to 125V with interrupting ratings up to 10kA, making it ideal for demanding industrial applications. Key features include time-delay (ACK) and general-purpose (ACL, ALS) variants, expanded ampere ratings from 35A to 500A, and compatibility with Mersen fuse blocks like P243C and P243E. The CNL and CNN styles offer space-saving flat designs with visual 'see-thru' indication to confirm fuse operation. With catalog numbers ranging from CNL35 to CNL500 and CNN10 to CNN800, the FTFH series provides comprehensive coverage for heavy-duty circuit protection needs. Designed for reliability, the FTFH fuses are AC/DC rated, feature embossed catalog numbers for easy identification, and are manufactured in the US. These fuses are UL-listed under the Low Voltage Fuse System and meet the rigorous demands of industrial battery systems. Trust Mersen, a leader in electrical protection, to deliver high-quality fuses that withstand harsh conditions while maintaining optimal performance and safety.
  • AC/DC rated up to 125V with interrupting ratings up to 10kA
  • Stud-mounted bolt-in design for secure installation in rugged environments
  • Time-delay (ACK) and general-purpose (ACL, ALS) variants available
  • Expanded ampere ratings from 35A to 500A with visual 'see-thru' indication (CNL/CNN styles)
  • Compatible with Mersen fuse blocks P243C and P243E for forklift truck applications

Specifications

Amperage Rating
800 A
Application
Forklift trucks Battery hand trucks Motorized work platforms Battery systems
Brand Name
Ferraz Shawmut
Connection Type
Stud Mounted Bolt-In
Material
Rugged Construction
Mounting Type
Stud mounted bolt-in
Series
FTFH
Type
Forklift Truck Fuses
Voltage Rating
125V AC/DC
Voltage Rating
130 VAC
Package Dimensions (L x W x H)
3.15 IN x 0.95 IN x 1.77 IN
Package Dimensions (L x W x H)
8.001 cm x 24.13 mm x 4.4958 cm
Package Weight (Imperial)
0.100 L
Package Weight (Metric)
0.045 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.

LCC5

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.
9F61 Size B Clips 1.6in

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9F61 Size B Clips 1.6in

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.