Mersen V226729 - NH plastic base Size NH3 1000VAC 1000VDC 630A 3-Pole DIN Rail Connection Screw Indirect touch protection IP20
Mersen

V226729

Alternate Item Number: BB33PPRFS

Contact for Pricing

Overview

The Mersen V226729 is a robust NH3-size, 3-pole fuse-base designed for industrial applications requiring high voltage and current protection. Rated for 1000VAC and 1000VDC, this unit can handle up to 630A, making it suitable for demanding electrical systems. Constructed with a durable plastic base and featuring stable, silver-plated electrolytic copper contact springs, it ensures reliable performance even under high thermal stress. The fuse-base is designed for DIN rail mounting, facilitating easy and secure installation within control panels and electrical enclosures. Its IP20 rating provides protection against solid objects greater than 12.5mm, ensuring safety during operation. This model includes indirect touch protection, enhancing user safety by preventing accidental contact with live parts. The three-pole design comes with two phase-partition walls for proper isolation. Mersen's NH fuse-bases are known for their closely mountable parallel rows and the availability of clip-on plug-on covers for enhanced safety. The stable contact springs are made from one piece of electrolytic copper, with separate springing provided by highly resilient captive steel springs, making the contacts invulnerable to high thermal stress. This fuse-base is compatible with NH fuse-links and is manufactured in the USA.
  • NH3 Size, 3-Pole Configuration
  • 1000VAC / 1000VDC Voltage Rating
  • 630A Current Rating
  • DIN Rail and Screw Mounting Options
  • IP20 Rated with Indirect Touch Protection

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
DIN Rail
Number Of Poles
3
Size
5.61 x 8.78 x 10.63 in
Size
142.5 x 223 x 270 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)
5.61 in x 8.78 in x 10.63 in
Package Dimensions (L x W x H)
142.5 mm x 223 mm x 270 mm
Package Weight (Imperial)
4.894 lb
Package Weight (Metric)
2.220 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.