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Mersen H218760 - NH plastic base Size NH3 1000VAC 1000VDC 630A 1-Pole With Microswitch Screw Mount or DIN Rail Connection Screw
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Mersen H218760 NH plastic base Size NH3 1000VAC 1000VDC 630A 1-Pole With Microswitch Screw Mount or DIN…

Alternate Item Number: BB31PPMS


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Specification 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 H218760 is a robust, single-pole NH plastic base fuse holder designed for industrial applications requiring reliable overcurrent protection. Engineered by Mersen, a leader in electrical safety, this unit is rated for 630A and supports voltages up to 1000VAC and 1000VDC, making it suitable for diverse power distribution systems. Its Size 3 designation ensures compatibility with corresponding NH fuse-links, providing a secure and efficient connection. The H218760 features a durable plastic base construction, offering excellent insulation and resistance to thermal stress. Installation is versatile, accommodating both screw mounting and DIN rail mounting, simplifying integration into existing control panels and switchgear. The stable, silver-plated contact springs, made from electrolytic copper, are formed from a single piece to ensure consistent contact pressure and minimize resistance. Separate springing is provided by highly resilient captive steel springs, safeguarding the contacts against high thermal loads and ensuring long-term operational integrity. This fuse base is designed to accept NH fuse-links with strikers, and a microswitch (250VAC/10A, terminal size 6.3x0.8mm) can be fitted for signaling purposes, operating when a fuse melts or is absent. The rated impulse withstand voltage (Uimp) is 6kV for size 00 and 8kV for sizes 0-4, including this Size 3 unit, underscoring its capability to handle transient overvoltages. Each three-pole base is supplied with two phase-partition walls, and plug-on covers can be added for enhanced safety. The H218760 is manufactured in the US and carries UNSPSC code 39121629. Trust Mersen for dependable fuse protection solutions.
  • Mersen H218760 NH Plastic Base Fuse Holder
  • Size 3, Single-Pole Configuration
  • Rated for 630A, 1000VAC, and 1000VDC
  • Versatile Screw or DIN Rail Mounting
  • Compatible with NH Fuse-Links with Striker and Microswitch

Specifications

AC Voltage Rating
1000 V
Amperage Rating
630 A
Application
For fuse-links with rated voltages up to 1000VAC and 1000VDC
Brand Name
Mersen
Connection
Screw
DC Voltage Rating
1000 V
Mounting
Screw Mount or DIN Rail
Number Of Poles
1
Size
3.27 x 3.15 x 9.17 in
Size
83 x 80 x 233 mm
Special Features
Polyamide insulating bases Silver-plated contacts High-pressure spring contacts Screw or rail mounting Connecting cable: 50mm Multipolar bases possible by direct linkage in 00 size and with separator accessory in sizes 0, 1, 2 and 3 Variety of options for protecting active parts through use of accessories: separating plates, separator, cover shields and fuse cover Dual cable-connection system on 00 size: by screw or clamp
Standard
IEC 60269 Compliance Dimensions in accordance with DIN 43620 DIN VDE 0636-2, 0636-21
Type
IEC NH Fuse Bases
Package Dimensions (L x W x H)
3.27 in x 3.15 in x 9.17 in
Package Dimensions (L x W x H)
83 mm x 80 mm x 233 mm
Package Weight (Imperial)
1.764 lb
Package Weight (Metric)
0.800 kg
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Frequently Asked Questions

What are the voltage ratings for NH fuse-links?

NH fuse-links are rated for up to 1000 VAC and 1000 VDC.

What sizes are the NH plastic bases available in?

NH plastic bases are available in sizes 00, 0, 1, 2, 3, and 4.

What is the rated impulse withstand voltage for NH fuse-bases?

The rated impulse withstand voltage is 6kV for size 00 and 8kV for sizes 0-4.

What is the ampere range for these NH fuse bases?

The ampere range for these NH fuse bases is from 160 A to 630 A.

What are the contact springs made of and how are they designed?

The contact springs are silver-plated, made of electrolytic copper, and formed from one piece with captive steel springs for resilience.

Can a microswitch be used with all NH fuse-links?

A microswitch can be used with NH fuse-links with a striker, but not with indirect touch protection fuse bases.

What are the available connection types for size 00 bases?

Size 00 bases offer a dual cable-connection system, usable by screw or clamp.

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.