Mersen L1000119 - High Voltage DIN Back-up fuse for Transformer Limitor® VDE T4 12kVAC IEC 1A d56mm, L292mm With Striker CPD 80N
Mersen

L1000119

Alternate Item Number: 45DB120V1PT

Contact for Pricing

Overview

The Mersen L1000119 is a High Voltage DIN Back-up fuse, part of the Limitor®-PT series, designed for reliable protection in high-voltage switchgear, controlgear, and electrical systems. This fuse adheres to the IEC 60282-1 standard for back-up fuses and is specifically engineered to safeguard transformers against the damaging effects of short-circuit currents. Constructed with premium materials to ensure high quality and performance, the L1000119 features fuse-elements made from pure silver. The end caps are crafted from copper coated with silver, and the body is constructed from durable ceramic. This combination of materials contributes to the fuse's robust performance and longevity in demanding applications. The Mersen Limitor®-PT HV fuses have a proven track record of decades of reliable protection in critical high-voltage infrastructure. This specific model, SKU L1000119, operates at 12kVAC and has a rating of 1A. It features a striker with a CPD of 80N, indicating its mechanical release capability. The physical dimensions are a diameter of 56mm and a length of 292mm, designed for DIN mounting. Its UNSPSC code is 39121626. Manufactured in the US, this fuse is a dependable choice for transformer protection.
  • High Voltage DIN Back-up fuse for transformer protection
  • VDE T4, 12kVAC, 1A rating
  • IEC 60282-1 compliant
  • Constructed with pure silver fuse-elements and silver-coated copper caps
  • Ceramic body for durability; includes 80N striker

Specifications

AC Voltage Rating
12 kV
Amperage Rating
1 A
Application
HV Transformer protection
Body Material
Ceramic
Brand Name
Mersen
Connection
Cylindrical
Connection Material
Silver-Plated Copper
Current Rating
1A
Interrupt Rating
63 kA
Material
Silver, Copper, Ceramic
Mounting
Clip
Series
Limitor® VDE T4
Size
d56mm, L292mm
Size
14.09 x 2.2 in
Size
358 x 56 mm
Special Features
High breaking capacity High current limitation Low switching voltage Quick breaking Energy efficency New cap design for a better compatibility with all types of clips and easier assembly Coordination with IEC 60787, IEC 62271-105, IEC/TR 62655 Medium striker 80N/30mm CPD striker: controlled power dissipation Indoor and outdoor applications
Standard
IEC 60282-1 VDE 0670 part 4 DIN 43625
Sub Brand
Limitor®
Type
DIN HV Back-up Fuses for Transformers
Type Of Indicators
Striker
Voltage Rating
12kVAC
Package Dimensions (L x W x H)
14.09 in x 2.2 in x 2.2 in
Package Dimensions (L x W x H)
358 mm x 56 mm x 56 mm
Package Weight (Imperial)
3.527 lb
Package Weight (Metric)
1.600 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.

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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.