Mersen J217726 - NH plastic base Size NH0 1000VAC 1000VDC 160A 4-Pole DIN Rail Connection Screw EP Type
Mersen

J217726

Alternate Item Number: BB04EPR

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Overview

The Mersen J217726 NH fuse-base is a high-performance, 4-pole plastic base designed for industrial low-voltage fuse systems. Rated for 160A continuous current, it supports both 1000VAC and 1000VDC applications, making it ideal for power distribution panels, motor control centers, and industrial machinery. The square contact (EP type) ensures reliable electrical connections with low contact resistance, while the DIN rail mounting option simplifies installation and maintenance in compact enclosures. Constructed with a single-part plastic base, the J217726 is optimized for size NH0 fuse-links, offering a power acceptance of 12W. The silver-plated electrolytic copper contact springs provide exceptional conductivity and thermal stability, while captive steel springs ensure consistent contact pressure even under high thermal stress. This design minimizes downtime and enhances safety in high-current applications. Compatible with NH fuse-links featuring 8mm contact blades, the J217726 supports striker-operated microswitches (250VAC/10A, 6.3x0.8mm terminals) for fault indication. The rated impulse withstand voltage of 6kV (size 00) or 8kV (sizes 0-4) ensures robust protection against transient surges. With a package weight of 0.58 kg, this fuse-base is engineered for efficient space utilization in control panels and distribution boards.
  • 4-pole NH fuse-base for size NH0 fuse-links (160A rated current)
  • Supports 1000VAC and 1000VDC applications with 12W power acceptance
  • Square contact (EP type) with silver-plated copper springs for low resistance
  • DIN rail or screw mounting options for flexible installation
  • Striker-operated microswitch compatibility (250VAC/10A) for fault indication
  • Rated impulse withstand voltage: 6kV (size 00) or 8kV (sizes 0-4)
  • Single-part plastic base construction for durability and compact design

Specifications

AC Voltage Rating
1000 V
Amperage Rating
160 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
4
Size
2.32 x 7.48 x 6.61 in
Size
59 x 190 x 168 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
690 VAC
Package Dimensions (L x W x H)
2.32 in x 7.48 in x 6.61 in
Package Dimensions (L x W x H)
59 mm x 190 mm x 168 mm
Package Weight (Imperial)
1.940 lb
Package Weight (Metric)
0.880 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.