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Mersen T226728 - NH plastic base Size NH3 1000VAC 1000VDC 630A 1-Pole DIN Rail Connection Screw Indirect touch protection IP20

Mersen T226728 NH plastic base Size NH3 1000VAC 1000VDC 630A 1-Pole DIN Rail Connection Screw Indirect…

Alternate Item Number: BB31PPRFS


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Specification Sheet

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Overview

The Mersen T226728 NH3 plastic fuse base is a high-capacity industrial component designed for IEC NH fuse systems, providing reliable overcurrent protection in low-voltage applications up to 1000VAC and 1000VDC at 630A. This single-pole fuse base features a durable plastic construction with indirect touch protection rated IP20, ensuring operator safety while maintaining thermal stability. The base is engineered for compatibility with NH3 fuse-links, including NH3L variants, and supports DIN rail mounting for flexible installation in control panels, switchgear, and distribution boards. The silver-plated electrolytic copper contact springs deliver low-resistance connections, while captive steel springs maintain consistent pressure under high thermal stress. With a rated impulse withstand voltage of 6kV, the T226728 is suitable for harsh industrial environments requiring dependable protection. The compact NH3 size (33mm width) enables dense mounting in parallel rows, optimizing space in tight installations. The fuse base supports both screw and DIN rail mounting options, accommodating various installation preferences. Rated for 630A with a power acceptance of 45W, the T226728 is ideal for medium to high-power applications, including motor control centers, power distribution units, and renewable energy systems. The base’s durable construction ensures long-term reliability in demanding industrial settings.
  • Rated for 1000VAC and 1000VDC at 630A current
  • Single-pole NH3 plastic fuse base with IP20 indirect touch protection
  • Silver-plated electrolytic copper contact springs for low-resistance connections
  • Supports DIN rail and screw mounting options
  • Compact 33mm width for dense parallel mounting in control panels

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
Connection Type
Screw/DIN Rail
Current Rating
630A
DC Voltage Rating
1000 V
IP Rating
IP20
Material
Plastic
Mounting
DIN Rail
Mounting Type
DIN Rail
Number of Poles
1
Poles
1-pole
Series
NH
Size
NH3 (33mm width)
Size
5.61 x 2.36 x 10.63 in
Size
142.5 x 60 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
Voltage Rating
1000VAC/1000VDC
Package Dimensions (L x W x H)
5.61 in x 2.36 in x 10.63 in
Package Dimensions (L x W x H)
142.5 mm x 60 mm x 270 mm
Package Weight (Imperial)
2.425 lb
Package Weight (Metric)
1.100 kg
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Fuse Base for DIN High Voltage Fuse-links 12kVAC 192mm

H209422

Fuse Base for DIN High Voltage Fuse-links 12kVAC 192mm
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.
This Mersen product (SKU: T210329) comprises fuse bases designed for DIN high voltage fuse-links with a 45mm diameter. These bases accommodate fuse-link 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, especially for fuses equipped with a trip-indicator. This robust and original design offers flexibility for mechanical systems, enabling the incorporation of microswitch units based on equipment configuration. These bases are suitable for high-speed fuse applications.

T210329

This Mersen product (SKU: T210329) comprises fuse bases designed for DIN high voltage fuse-links with a 45mm diameter. These bases accommodate fuse-link 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, especially for fuses equipped with a trip-indicator. This robust and original design offers flexibility for mechanical systems, enabling the incorporation of microswitch units based on equipment configuration. These bases are suitable for high-speed fuse applications.
This Mersen product (SKU: V210330) consists of fuse bases designed for DIN high voltage fuse-links. These bases accommodate fuse-links with a 45mm diameter and various lengths including 192mm, 292mm, 367mm, 442mm, and 537mm. The integrated indicating device allows for electrical actuation of the opening mechanism or triggers an indicator upon fuse melting when the fuse is equipped with a trip-indicator. This robust design offers flexibility for mechanical systems and supports the incorporation of microswitch units based on equipment configuration. Manufactured in the USA.

V210330

This Mersen product (SKU: V210330) consists of fuse bases designed for DIN high voltage fuse-links. These bases accommodate fuse-links with a 45mm diameter and various lengths including 192mm, 292mm, 367mm, 442mm, and 537mm. The integrated indicating device allows for electrical actuation of the opening mechanism or triggers an indicator upon fuse melting when the fuse is equipped with a trip-indicator. This robust design offers flexibility for mechanical systems and supports the incorporation of microswitch units based on equipment configuration. Manufactured in the USA.
This Mersen fuse base (SKU: V1001070) is designed for DIN high voltage fuse-links with a 45mm diameter and available lengths of 192, 292, 367, 442, and 537mm. It features an indicating device for electrical actuation of the opening mechanism or triggering of an indicator upon fuse melting when equipped with a trip-indicator. This robust and original device offers mechanical system freedom and the capability to incorporate microswitch units based on equipment configuration. It is manufactured in the USA.

V1001070

This Mersen fuse base (SKU: V1001070) is designed for DIN high voltage fuse-links with a 45mm diameter and available lengths of 192, 292, 367, 442, and 537mm. It features an indicating device for electrical actuation of the opening mechanism or triggering of an indicator upon fuse melting when equipped with a trip-indicator. This robust and original device offers mechanical system freedom and the capability to incorporate microswitch units based on equipment configuration. It is manufactured in the USA.

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.