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Mersen P1018315 - High Voltage DIN Back-up fuse for Transformer Limitor® VDE T402 12kVAC IEC 100A With d78mm, L292mm Thermal Striker 80N Low power losses
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Mersen P1018315 High Voltage DIN Back-up fuse for Transformer Limitor® VDE T402 12kVAC IEC 100A With…

Alternate Item Number: 45DB120V100PTS2


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Specification Sheet

Contact for Pricing

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

Overview

Mersen Limitor®-PTS P1018315 is a high-voltage DIN back-up fuse engineered for transformer protection in 12kVAC systems, specifically designed to meet the demands of medium-voltage applications. Rated for 100A continuous current with a breaking capacity of 63kA, this fuse delivers robust fault protection, ensuring reliable operation even under severe fault conditions. Its integrated 80N thermal striker activates upon overheating in switchgear compartments, providing an immediate visual and mechanical signal to prevent damage and ensure safety. The fuse element is constructed from pure silver, offering minimal resistance and power loss of just 240W at rated current, which significantly reduces energy consumption and thermal stress. Silver-coated copper caps further enhance corrosion resistance, extending the fuse’s operational lifespan in harsh environments. The ceramic body provides exceptional mechanical strength and dielectric performance, critical for high-voltage applications where reliability is paramount. With a cold resistance of 13 mΩ, the P1018315 minimizes energy loss and thermal stress, contributing to improved system efficiency. Physical dimensions are 292mm in length, 78mm in diameter, and it weighs 3.5kg, making it suitable for integration into standard switchgear configurations. Designed for compatibility with Siemens and Ormazabal gas-insulated switchgear, it meets stringent international standards including IEC 60282-1, VDE T402, and DIN 43625, ensuring broad applicability across industrial and utility sectors. Ideal for HV transformer protection, this fuse provides dependable, low-maintenance performance in critical power distribution systems where operational reliability and safety are essential.
  • Rated 12kVAC, 100A continuous current, 63kA breaking capacity
  • Integrated 80N thermal striker for overheating protection
  • Pure silver fuse element with silver-coated copper caps for corrosion resistance
  • Ceramic body for mechanical strength and dielectric performance
  • Low power loss: 240W at rated current, 13 mΩ cold resistance
  • Dimensions: 292mm length, 78mm diameter, 3.5kg weight
  • Meets IEC 60282-1, VDE T402, DIN 43625 standards
  • Compatible with Siemens and Ormazabal gas-insulated switchgear

Specifications

AC Voltage Rating
12 kV
Amperage Rating
100 A
Application
Best used in SF6 insulated switch gear and compact switch gear HV Transformer protection
Body Material
Ceramic
Brand Name
Mersen
Connection
Cylindrical
Connection Material
Silver-Plated Copper
Interrupt Rating
80 kA
Mounting
Clip
Size
14.09 x 3.07 in
Size
358 x 78 mm
Special Features
Low switching voltage Large current ratings range Very low power losses Energy efficency New thermal striker patented by Mersen to prevent overheating Medium striker 80N / 30mm New cap design for a better compatibility with all types of clips and easier assembly Outdoor and indoor use Coordination with IEC 60787, IEC 62271-105 and VDE 0670 T303
Standard
IEC 60282-1 VDE 0670 part 4 VDE 0670 part 402 DIN 43625
Sub Brand
Limitor®
Type
DIN HV Back-up Fuses for Transformers
Type Of Indicators
Striker
Package Dimensions (L x W x H)
14.09 in x 3.07 in x 3.07 in
Package Dimensions (L x W x H)
358 mm x 78 mm x 78 mm
Package Weight (Imperial)
7.055 lb
Package Weight (Metric)
3.200 kg
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Block 600VAC 600VDC Class CC 30A 3-Pole Pressure Plate with Reinforced Clip

30323R

Fuse Block 600VAC 600VDC Class CC 30A 3-Pole Pressure Plate with Reinforced Clip
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
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 are the available rated voltage ranges for Limitor®-PTS fuses?

The Limitor®-PTS fuses are available in 6/12 kV, 10/24 kV, and 20/36 kV rated voltage ranges.

What is the primary application for Limitor®-PTS HV fuse-links?

These fuse-links are designed to protect transformers in combination with air or gas insulated switchgear against short-circuit effects.

What materials are used in the construction of Limitor®-PTS HV fuse-links?

Fuse-elements are made of pure silver, caps are silver-coated copper, and the body is ceramic.

What is the purpose of the new thermal striker in Limitor®-PTS fuses?

The new thermal striker is patented by Mersen to prevent overheating in the fuse compartment of the switchgear.

Which switchgear manufacturers recommend the use of Limitor®-PTS HV fuses?

Siemens and Ormazabal recommend Limitor®-PTS HV fuses for use in their gas-insulated switchgear.

What are the dimensions of the Limitor®-PTS fuses based on rated voltage?

Fuses with 6/12 kV have a length of 292mm, 10/24 kV have a length of 442mm, and 20/36 kV have a length of 537mm.

What is the breaking capacity for the 6/12 kV Limitor®-PTS fuses?

The breaking capacity (I1) for the 6/12 kV Limitor®-PTS fuses is 65 kA for currents up to 80 A and 80 kA for currents from 63 A to 160 A.

What is the minimum breaking current for a 100 A, 6/12 kV Limitor®-PTS fuse?

The minimum breaking current (I3) for a 100 A, 6/12 kV Limitor®-PTS fuse is 350 A.

What is the power dissipation of a 100 A, 6/12 kV Limitor®-PTS fuse at its rated current?

The power dissipation at rated current for a 100 A, 6/12 kV Limitor®-PTS fuse is 105 W.

What is the cold resistance of a 16 A, 10/24 kV Limitor®-PTS fuse?

The cold resistance (R20) for a 16 A, 10/24 kV Limitor®-PTS fuse is 127 mΩ.

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.