Mersen HD400 - Mersen’s wide range of handles for our Low Voltage Disconnect switches includes direct-mount, selector-style, and pistol-style in different lengths. Many of these handles have locking capabilities and are available in different colors and IP and NEMA ratings. We also have metal handles and special handles for flange-mounting. Direct mounted for 400 amp NFDS series.
Mersen

HD400

Alternate Item Number: 3605340558746

Contact for Pricing

Overview

The Mersen HD400 Direct-Mount Handle (SKU: HD400) is a precision-engineered component designed for direct integration with Mersen's 400 Amp NFDS series low voltage disconnect switches. This handle provides essential access and control for electrical systems in industrial environments, ensuring reliable and secure operation. Constructed for durability, the HD400 withstands harsh operating conditions, making it ideal for manufacturing plants, processing facilities, and power distribution centers. Key specifications include direct-mount compatibility with the 400A NFDS series, reducing installation complexity and potential failure points. The handle is available in multiple colors for visual identification and system organization, with options for IP65 and NEMA 3R/4X ratings to protect against dust, water, and contaminants. Locking capabilities enhance safety by enabling secure isolation during maintenance or emergencies. Mersen offers a comprehensive range of handles, including selector-style and pistol-style options in various lengths (e.g., 65mm, 80mm, 125mm, 145mm, 274mm, 330mm) with IP65 and NEMA ratings for diverse panel layouts and user preferences. Specialized solutions include metal handles for increased mechanical strength and flange-mounting handles for flexible enclosure design. The HD400 is part of Mersen's UL 98-compliant disconnect switch portfolio, ensuring compliance with stringent industry standards for electrical protection and power management.
  • Direct-mount design for seamless integration with 400A NFDS series switches
  • Available in multiple colors (e.g., black, red) for visual identification
  • IP65 and NEMA 3R/4X rated for protection against dust, water, and contaminants
  • Locking capability for secure isolation during maintenance or emergencies
  • Compatible with Mersen's UL 98-compliant disconnect switch portfolio

Specifications

Application
for use with Mersen switches
Brand Name
Ferraz Shawmut
Special Features
Mersen’s wide range of handles for our Low Voltage Disconnect switches includes direct-mount, selector-style, and pistol-style in different lengths. Many of these handles have locking capabilities and are available in different colors and IP and NEMA ratings. We also have metal handles and special handles for flange-mounting.
Standard
UL98 recognized to E191605
Type
Accessories for Switches
Voltage Rating
600 VAC
Package Dimensions (L x W x H)
1.9685 IN x 1.9685 IN x 3.937 IN
Package Dimensions (L x W x H)
5 cm x 5 cm x 10 cm
Package Weight (Imperial)
0.462 L
Package Weight (Metric)
0.210 kg
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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.