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Mersen M1000120 - High Voltage DIN Back-up fuse for Transformer Limitor® VDE T4 12kVAC IEC 2A d56mm, L292mm With Striker CPD 80N

Mersen M1000120 High Voltage DIN Back-up fuse for Transformer Limitor® VDE T4 12kVAC IEC 2A d56mm…

Alternate Item Number: 45DB120V2PT


Documents & Media
Specification Sheet

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Mersen M1000120 is a high-voltage DIN back-up fuse engineered for transformer protection in the Transformer Limitor® VDE T4 series. Designed to safeguard transformers from damaging short-circuit currents, the M1000120 features premium construction with pure silver fuse elements and silver-coated copper end caps, housed in a durable ceramic body for superior insulation and heat dissipation. Key specifications include a 12kVAC voltage rating and 2A current rating, with physical dimensions of 56mm diameter and 292mm length. The fuse incorporates a striker mechanism with an 80N release force, providing visual and mechanical indication of fuse operation in compatible systems. This model is optimized for use in transformer protection applications where high reliability and precise fault interruption are critical. Mersen’s decades of expertise in high-voltage protection are reflected in the M1000120’s robust design and consistent performance. The fuse-link is specifically tailored for Transformer Limitor® VDE T4 applications, ensuring compatibility with Mersen’s protection systems while delivering the durability required for industrial environments.
  • 12kVAC voltage rating for high-voltage transformer protection
  • 56mm diameter x 292mm length with 80N striker mechanism
  • Pure silver fuse elements and silver-coated copper end caps for durability
  • Ceramic body for superior insulation and heat dissipation
  • Features 80N Striker for Operation Signaling

Specifications

AC Voltage Rating
12 kV
Amperage Rating
2 A
Application
HV Transformer protection
Body Material
Ceramic
Brand Name
Mersen
Connection
Cylindrical
Connection Material
Silver-Plated Copper
Current Rating
2A
Interrupt Rating
63 kA
Material
Ceramic body with pure silver fuse elements and silver-coated copper end caps
Mounting
Clip
Series
Limitor®-PT
Size
14.09 x 2.2 in
Size
358 x 56 mm
Size
d56mm, L292mm
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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C331156

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Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
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

9F61BWW460

9F61 Size B Clips 1.6in

Frequently Asked Questions

What is the voltage rating of the M1000120?

The M1000120 operates at 12kVAC, designed for high-voltage transformer protection applications.

What is the current rating of this fuse?

The M1000120 has a 2A current rating, suitable for back-up protection in transformer circuits.

What are the physical dimensions of the M1000120?

The fuse measures 56mm in diameter and 292mm in length, with a striker mechanism for operation indication.

Does the M1000120 include a striker mechanism?

Yes, the M1000120 features a striker mechanism with an 80N release force to signal fuse operation.

What materials are used in the M1000120 construction?

The fuse elements are made of pure silver, end caps are silver-coated copper, and the body is ceramic for insulation and heat dissipation.

Is the M1000120 compatible with Transformer Limitor® systems?

Yes, the M1000120 is specifically designed for use with Mersen’s Transformer Limitor® VDE T4 series.

What is the application of the M1000120?

The M1000120 is used for transformer protection in high-voltage switchgear and controlgear systems.

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.