Mersen S301293 - Square Body High-Speed Fuse Protistor® Size 70 gR 690VAC IEC 100A With Striker Open Slot Blades
Mersen

S301293

Alternate Item Number: PC70GB69V100ESF


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Overview

The Mersen S301293 is a Size 70 gR Protistor® high-speed fuse-link engineered for AC protection. This fuse features a square body and open slot blades with a striker, rated for 100A and 690VAC (IEC). It provides full-range protection against overloads and short circuits, essential for power conversion equipment. Constructed with pure silver die-cut elements embedded in solidified sand, it ensures controlled arcing characteristics, resulting in a lower I²t and a high interrupting rating of 150 kA. The silver-plated contact surfaces and non-magnetic hardware enhance reliability. This fuse-link is compatible with a low-voltage trip-indicator for microswitch operation. Its robust construction and precise performance make it a critical component for safeguarding sensitive electrical systems. The Protistor® series offers flexibility in equipment design with various body sizes and mounting styles. Manufactured by Mersen, SKU S301293. Specifications: Rated Voltage AC (IEC): 690V, Rated Current (In): 100A, Rated Breaking Capacity AC: 150 kA, Pre-arcing I²t: 830 A²s, Clearing I²t at Rated Voltage: 6750 A²s, Power Dissipation at In: 30W. Country of Origin: FR.
  • Mersen Protistor® Size 70 gR High-Speed Fuse
  • Rated Current: 100A
  • Rated Voltage AC (IEC): 690V
  • Interrupting Capacity: 150 kA
  • Square body with open slot blades and striker

Specifications

AC Voltage Rating
690 V
Amperage Rating
100 A
Application
Protection of inverters, motor drives, UPS systems and similar 690V or less equipment.
Brand Name
Mersen
Case
Ceramic
Connection
Open Slot Blades
Connection Type
Open Slot Blades
Current Rating
100 A
Material
Pure Silver Die-Cut Elements in Solidified Sand
Material
Pure silver die-cut elements embedded in solidified sand
Material
Silver
Mounting
Bolted
Series
Protistor®
Series
Protistor® gR
Size
5.25 x 1.54 x 1.81 in
Size
133.4 x 39 x 46 mm
Size
Size 70
Size
Size 70 gR
Special Features
Excellent cycling capability Multiple body sizes and terminals or blades combination Extremely fast acting Eliminate all overloads Low I²t for improved semiconductor protection gR Class according to IEC 60269-4 and VDE 636-23
Standard
IEC 60269-4 Compliance
Sub Brand
Protistor®
Type
Square Body High-Speed Fuse-Links AC Protection
Type Of Indicators
Striker
Voltage Rating
690 V
Wattage
23 W
Package Dimensions (L x W x H)
5.25 in x 1.54 in x 1.81 in
Package Dimensions (L x W x H)
133.4 mm x 39 mm x 46 mm
Package Weight (Imperial)
0.882 lb
Package Weight (Metric)
0.400 kg
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9F61 Size B Clips 1.6in

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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.

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.