Mersen CNN400 - Forklift Truck UL CNN Fuses 130VAC 80VDC 400A Fast-Acting Blade Visual Indicator
Mersen

CNN400

Alternate Item Number: CNN400

UPC: 782001790554


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Overview

The Mersen CNN400 is a fast-acting blade fuse specifically designed for DC battery protection in heavy-duty industrial equipment. With a robust 400A rating, it is ideal for applications such as forklift trucks, hand trucks, and motorized work platforms. This fuse is compatible with both 130VAC and 80VDC systems, offering versatile circuit protection. Its stud-mounted, bolt-in design ensures secure installation and long-term reliability in demanding environments. A key feature of the CNN400 is its integrated visual indicator, which allows for rapid status checks, minimizing diagnostic time and reducing operational downtime. Manufactured by Mersen, a recognized leader in electrical protection solutions, the CNN400 (SKU: CNN400) provides dependable safety for your critical industrial machinery. Its construction is built to withstand the rigors of daily use in industrial settings, ensuring consistent performance. The fast-acting nature of this fuse is crucial for protecting sensitive DC battery systems from overcurrent events, safeguarding against potential damage and costly repairs. Trust the Mersen CNN400 for efficient and reliable electrical safety in your fleet of battery-powered equipment.
  • 400A current rating for heavy-duty applications
  • 130VAC / 80VDC voltage compatibility
  • Fast-acting blade fuse design
  • Integrated visual indicator for easy status checks
  • Rugged construction for industrial environments

Specifications

AC Voltage Rating
130 V
Amperage Rating
400 A
Application
Forklift trucks Battery hand trucks Motorized work platforms Battery systems
Body Material
GMG
Brand Name
Mersen
Connection
Blade
Connection Material
Silver-Plated Copper
Connection Type
Stud-mounted, Bolt-in
Connection Type
Blade
Current Rating
400A
Current Rating
400 A
DC Voltage Rating
80 V
Interrupt Rating
2500 A
Interrupt Rating
2.5 kA
Mounting
Bolted
Mounting Type
Stud-mounted, bolt-in
Mounting Type
Stud-mounted
Series
CNN
Size
3.19 x 0.64 x 0.4 in
Size
81.026 x 16.256 x 10.16 mm
Special Features
All fuses are AC and DC rated Expanded ampere ratings Time-delay and general purpose types Link is visible through window
Standard
UL recognized components (All Products) File E60314
Type
Forklift Truck Fuses
Type Of Indicators
Visual Indicator
Voltage Rating
130 VAC / 80 VDC
Voltage Rating
130VAC/80VDC
Voltage Rating
130 VAC
Package Dimensions (L x W x H)
3.19 in x 0.64 in x 0.4 in
Package Dimensions (L x W x H)
81.026 mm x 16.256 mm x 10.16 mm
Package Weight (Imperial)
0.060 lb
Package Weight (Metric)
0.027 kg

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CNN40DIN


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Connection: DIN Type Blades

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CNN100


Amperage Rating: 100 A

Current Rating: 100A

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CNN100DIN


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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.