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Mersen J079496 - Square Body High-Speed Fuse Protistor® Size 602 aR 4200VDC IEC 200A With Striker L Brackets
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Mersen J079496 Square Body High-Speed Fuse Protistor® Size 602 aR 4200VDC IEC 200A With Striker L…

Alternate Item Number: D602SF42C200QF


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 J079496 Protistor® Size 602 aR fuse-link is a high-speed semiconductor protection fuse designed for DC applications up to 4200VDC and 200A. Engineered for railway power and auxiliary circuits, this square-body fuse-link delivers ultra-fast response to short circuits, minimizing damage to sensitive semiconductor components like diodes, thyristors, and IGBTs. Its aR classification per IEC 60269-4 ensures compliance with international standards for semiconductor protection. The fuse features a low I²t value for superior protection, reduced watts loss for improved system efficiency, and extended operational life. Contact surfaces are silver-plated for optimal conductivity, and non-magnetic hardware enhances reliability. Supplied with L brackets for secure mounting, the J079496 is a critical component for protecting high-performance DC power systems in demanding industrial environments.
  • Square body high-speed fuse-link for semiconductor protection
  • aR class per IEC 60269-4 for DC applications up to 4200VDC
  • 200A current rating with low I²t for superior short-circuit protection
  • Silver-plated contact surfaces and non-magnetic hardware for reliability
  • Supplied with L brackets for secure mounting

Specifications

Amperage Rating
200 A
Application
Suburban lines: 3kVDC
Brand Name
Mersen
Case
Ceramic
Case Material
Ceramic
Connection
L Brackets
Connection Type
Striker L Brackets
Current Rating
200 A
DC Voltage Rating
4200 V
Material
Silver fuse elements, sand filling
Material
Silver, Sand
Material
Silver
Mounting
Bolt
Mounting
Bolted
Mounting Type
L Brackets
Series
Protistor®
Size
Size 602
Size
16.38 x 2.91 x 3.41;416 x 74 x 86.5 in;mm
Size
Size 602 aR
Size
16.38 x 2.91 x 3.41 in
Size
416 x 74 x 86.5 mm
Special Features
Extremely fast acting Current limiting Very low I2t Worldwide acceptability Superior cycling ability
Sub Brand
Protistor®
Type
Square Body High-Speed Fuse-Links DC Protection
Type Of Indicators
Striker
Voltage Rating
4200 V
Voltage Rating
4200 V V
Wattage
228 W
Package Dimensions (L x W x H)
16.38 in x 2.91 in x 3.41 in
Package Dimensions (L x W x H)
416 mm x 74 mm x 86.5 mm
Package Weight (Imperial)
7.848 lb
Package Weight (Metric)
3.560 kg
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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 breaking capacity of the SRF-SRH fuses at 4200 V DC?

The breaking capacity for SRF-SRH fuses at 4200 V DC is 60 kA with an L/R of 15 ms.

What are the available current ratings for the SRF-SRH fuses?

The SRF-SRH fuses are available in current ratings of 200 A, 250 A, 315 A, and 375 A.

What is the maximum AC voltage rating for these DC fuses?

The maximum AC voltage rating for these DC fuses is 3,800 V with a breaking capacity of 50 kA.

What is the weight of the SRF-SRH fuse with catalog number D602SF42C200QF?

The weight of the SRF-SRH fuse with catalog number D602SF42C200QF is 3560 g.

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.