Mersen N330269 - Square Body High-Speed Fuse Protistor® Size NH 00 aR 690VAC IEC 32A With Striker DIN 80 Blades
Mersen

N330269

Alternate Item Number: DN00UB69V32L


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Specification Sheet

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Overview

The Mersen Protistor® N330269 is a high-speed fuse-link engineered for advanced semiconductor protection in power conversion equipment. Rated at 690VAC (IEC) and 700VAC (UL) with a 32A current rating, this NH 000 size fuse features DIN 80 blades and a striker for trip indication. It delivers fast-acting protection against overcurrents and short circuits, minimizing damage to sensitive electronic components like diodes, thyristors, and IGBT devices. Key specifications include a pre-arcing I²t of 8 A²s, clearing I²t of 50 A²s, and a high interrupting rating of 200 kA. The fuse-link uses die-cut elements embedded in solidified sand to control arcing characteristics, ensuring lower I²t values. All contact surfaces are silver-plated, and hardware is non-magnetic for optimal performance and longevity. With a power dissipation of 2.8W at rated current, the compact square body design and DIN blade configuration enable easy integration into standard industrial fuse holders and equipment. The striker mechanism allows for remote monitoring via trip-indicating microswitches, enhancing system reliability. Certified for global compliance, this fuse is ideal for applications requiring precise overcurrent protection in semiconductor and power electronics systems.
  • High-speed semiconductor protection with 200 kA interrupt rating
  • Rated 690VAC (IEC) / 700VAC (UL) at 32A current
  • DIN 80 blades with striker for trip indication
  • Pre-arcing I²t: 8 A²s, Clearing I²t: 50 A²s
  • Silver-plated contacts and non-magnetic hardware for longevity

Specifications

AC Voltage Rating
690 V
Amperage Rating
32 A
Application
Protection of inverters, motor drives, UPS systems and similar 690V or less equipments.
Brand Name
Mersen
Case
Ceramic
Connection
DIN Type Blades
Mounting
Bolted
Size
3.94 x 0.79 x 2.19 in
Size
100 x 20 x 55.5 mm
Special Features
aR Class according to IEC 60269-4 and VDE 636-23 Very low I²t for improved semiconductor protection Ultra fast acting Superior cycling capability
Standard
IEC 60269-4 Compliance UL/CSA Recognized Component AC: UL Guide No. E76491
Sub Brand
Protistor®
Type
Square Body High-Speed Fuse-Links AC Protection
Type Of Indicators
Striker
Voltage Rating
690 V
Wattage
15 W
Package Dimensions (L x W x H)
3.94 in x 0.79 in x 2.19 in
Package Dimensions (L x W x H)
100 mm x 20 mm x 55.5 mm
Package Weight (Imperial)
0.447 lb
Package Weight (Metric)
0.203 kg
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POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

LCC5

POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.
9F61 Size B Clips 1.6in

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9F61 Size B Clips 1.6in

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.