Mersen J220992 - British Standard fuse-link Protistor® 17x49 gR 690VAC IEC 35A With Striker
Mersen

J220992

Alternate Item Number: BS17GB69V35P


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Specification Sheet

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Overview

The Mersen J220992 Protistor® fuse-link (SKU: J220992) is engineered for critical semiconductor protection in 690VAC industrial applications. This 35A, gR class fuse adheres to IEC 60269-1 and IEC 60269-4 standards, ensuring reliable safeguarding of power semiconductor devices. Its compact 17x49mm dimensions are compatible with DIN 43653/00C and BS88-4 mounting systems, facilitating integration into existing infrastructure. The integrated striker provides clear visual indication of fuse operation, simplifying maintenance and troubleshooting. UL Recognition further enhances safety, enabling selective coordination within distribution circuits to prevent cascading failures. The fuse features die-cut elements embedded in solidified sand, delivering high breaking capacity within its size. This Mersen fuse-link is specifically designed for protecting thyristors, diodes, and other sensitive semiconductor components found in variable frequency drives (VFDs), rectifiers, and motor controllers where precise overload and short-circuit clearing is paramount to operational integrity and equipment longevity. Manufactured in the US.
  • Mersen Protistor® fuse-link for semiconductor protection
  • 35A current rating, 690VAC operating voltage
  • 17x49mm dimensions, gR class
  • IEC 60269-1 & -4 compliant
  • Features striker for visual operation indication

Specifications

AC Voltage Rating
690 V
Amperage Rating
35 A
Brand Name
Mersen
Case
Ceramic
Connection Type
Striker
Connection Type
DIN 43653/00C, BS88-4
Current Rating
35A
Material
Die-cut fuse elements in solidified sand
Material
Solidified sand with die-cut fuse elements
Material
Die-Cut Elements in Solidified Sand
Material
Solidified sand
Material
die-cut elements embedded in solidified sand
Mounting
Bolted
Mounting Type
DIN 43653/00C, BS88-4
Mounting Type
Striker, compatible with DIN/BS mounting systems
Mounting Type
DIN 43653/00C and BS88-4
Series
Protistor®
Size
17x49mm
Size
3.04 x 0.73 in
Size
77.2 x 18.5 mm
Sub Brand
Protistor®
Type
British Standard High-Speed Fuse-Links AC Protection
Type Of Indicators
Striker
Voltage Rating
690 V
Wattage
9.5 W
Package Dimensions (L x W x H)
3.04 in x 1.06 in x 0.94 in
Package Dimensions (L x W x H)
77.2 mm x 27 mm x 24 mm
Package Weight (Imperial)
0.132 lb
Package Weight (Metric)
0.060 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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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.