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

T226728

Alternate Item Number: BB31PPRFS

Contact for Pricing

Minimum Qty: 3

Multiplier: 3

*Contact for lower quantities*

Overview

Mersen T226728 NH3 plastic fuse base is a high-performance industrial component designed for IEC NH fuse systems, delivering reliable protection in low-voltage applications up to 1000VAC and 1000VDC at 630A. This single-pole fuse base features a robust plastic construction with indirect touch protection (IP20), ensuring operator safety while maintaining high 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 provide low-resistance connections, while captive steel springs ensure consistent pressure even under high thermal stress. Rated for a 6kV impulse withstand voltage, the T226728 is ideal for applications requiring dependable overcurrent protection in harsh industrial environments. The base’s compact NH3 size (33mm width) allows for dense mounting in parallel rows, optimizing space in tight installations. Designed for use with Mersen NH fuse-links, this fuse base supports both screw and DIN rail mounting options, accommodating various installation preferences. The indirect touch protection eliminates the need for microswitches, simplifying design while maintaining compliance with safety standards. With a rated current of 630A and a power acceptance of 45W, the T226728 is suitable for medium to high-power applications, including motor control centers, power distribution units, and renewable energy systems. The base’s durable construction and compliance with IEC 60269 standards ensure long-term reliability and performance in demanding industrial settings.
  • Rated for 1000VAC/1000VDC and 630A current
  • Single-pole NH3 plastic fuse base with indirect touch protection (IP20)
  • Compatible with NH3 and NH3L fuse-links
  • DIN rail mounting for flexible installation
  • Silver-plated copper contacts with captive steel springs for thermal stability

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
1
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
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
NH plastic base Size NH2 1000VAC 1000VDC 400A 1-Pole DIN Rail Connection Screw Indirect touch protection IP20

R226726

NH plastic base Size NH2 1000VAC 1000VDC 400A 1-Pole DIN Rail Connection Screw Indirect touch protection IP20
POWER DISTRIBUTION BLOCK 1400 1 POLE. POWR-BLOKS power distribution blocks offer a safe, convenient way of splicing cables, providing a fixed junction tap-off point or splitting primary power into secondary circuits. LX2XXX-DIN series offers integral DIN-Rail mount and an optional hinged safety cover. Applications: Typical applications include heating, air conditioning and refrigeration systems, elevator systems, material handling equipment, control panels, motor controls, switchgear, and anywhere power needs to be distributed to more than one load.

LD1400-1

POWER DISTRIBUTION BLOCK 1400 1 POLE. POWR-BLOKS power distribution blocks offer a safe, convenient way of splicing cables, providing a fixed junction tap-off point or splitting primary power into secondary circuits. LX2XXX-DIN series offers integral DIN-Rail mount and an optional hinged safety cover. Applications: Typical applications include heating, air conditioning and refrigeration systems, elevator systems, material handling equipment, control panels, motor controls, switchgear, and anywhere power needs to be distributed to more than one load.
D2.5/8SFT ADO

1SNA199184R1100

D2.5/8SFT ADO

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.