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Mersen D226714 - NH plastic base Size NH2 1000VAC 1000VDC 400A 3-Pole Screw Connection Screw Indirect touch protection IP20

Mersen D226714 NH plastic base Size NH2 1000VAC 1000VDC 400A 3-Pole Screw Connection Screw Indirect…

Alternate Item Number: BB23PPFS


Documents & Media
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 D226714 is a high-capacity NH2 3-pole plastic fuse base designed for 400A applications at 1000VAC/1000VDC. Engineered for industrial and commercial electrical systems, this fuse base provides reliable fault protection and circuit isolation with screw connection terminals for secure wiring. The IP20-rated enclosure ensures indirect touch protection, meeting safety standards for personnel and equipment. The stable silver-plated contact springs, formed from electrolytic copper, deliver low-resistance connections that withstand high thermal stress. Each three-pole base includes two phase-partition walls to prevent phase-to-phase arcing during fault conditions. The captive steel springs maintain consistent contact pressure, ensuring long-term reliability even under cyclic thermal loads. Compatible with NH2XL and NH3L fuse-links with 8mm blade contacts, the D226714 supports fuse ratings up to 630A with derating. The plastic base construction reduces weight while maintaining structural integrity, and the screw mounting design allows for parallel installation in compact configurations. With a rated impulse withstand voltage of 6kV, this fuse base meets IEC 60269-1, IEC 60269-2, and VDE 0636-10 standards for low-voltage fuse systems. Ideal for solar PV installations, industrial motor control centers, and high-power distribution panels where high fault currents and elevated voltages require robust protection solutions.
  • 3-pole NH2 plastic fuse base rated 400A at 1000VAC/1000VDC
  • IP20 indirect touch protection with phase partition walls included
  • Silver-plated electrolytic copper contact springs with captive steel springs for thermal stress resistance
  • Screw connection terminals for secure wiring and compatibility with NH2XL/NH3L fuse-links (8mm blade contacts)
  • Rated impulse withstand voltage: 6kV; meets IEC 60269-1, IEC 60269-2, VDE 0636-10 standards

Specifications

AC Voltage Rating
1000 V
Amperage Rating
400 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
Number Of Poles
3
Size
4.82 x 7.52 x 9.84 in
Size
122.5 x 191 x 250 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)
4.82 in x 7.52 in x 9.84 in
Package Dimensions (L x W x H)
122.5 mm x 191 mm x 250 mm
Package Weight (Imperial)
4.894 lb
Package Weight (Metric)
2.220 kg
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This Mersen product (SKU: S210328) is a robust fuse base designed for DIN high voltage fuse-links. It accommodates fuse-links with a 45mm diameter and lengths of 192, 292, 367, 442, and 537mm. The integrated indicating device allows for electrical actuation of the opening mechanism or triggers an indicator upon fuse melting, provided the fuse is equipped with a trip-indicator. This design offers flexibility for mechanical systems and supports the incorporation of microswitch units based on equipment configuration. Manufactured in the US, these fuse bases are built for reliable performance in demanding electrical applications.

S210328

This Mersen product (SKU: S210328) is a robust fuse base designed for DIN high voltage fuse-links. It accommodates fuse-links with a 45mm diameter and lengths of 192, 292, 367, 442, and 537mm. The integrated indicating device allows for electrical actuation of the opening mechanism or triggers an indicator upon fuse melting, provided the fuse is equipped with a trip-indicator. This design offers flexibility for mechanical systems and supports the incorporation of microswitch units based on equipment configuration. Manufactured in the US, these fuse bases are built for reliable performance in demanding electrical applications.

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.