Mersen C079490 - Square Body High-Speed Fuse Protistor® Size 600 aR 4200VDC IEC 40A With Striker L Brackets
Mersen

C079490

Alternate Item Number: D600SE42C40QF


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Specification Sheet

Contact for Pricing

Overview

The Mersen C079490 is a Protistor® square body high-speed fuse designed for robust semiconductor protection. Rated at 40A and 4200VDC, this fuse is engineered to provide reliable protection for critical DC circuits, particularly in railway power and auxiliary applications. Mersen DC semiconductor fuse-links are developed to meet the enhanced performance requirements of modern DC equipment. They operate effectively at elevated temperatures, feature lower I²t values to minimize damage to protected components during short circuits, and offer reduced power loss for extended operational life. This specific model, SKU C079490, includes striker L brackets for secure mounting. Its design prioritizes safety and component longevity in demanding DC environments. The fuse-link's construction ensures rapid interruption of fault currents, safeguarding sensitive semiconductor devices. The catalog data indicates a rated breaking capacity of 200 kA and a pre-arcing I²t of 7470 kA²s, with a clearing I²t of 23100 kA²s at 400V. Power dissipation at rated current is 580W.
  • Mersen Protistor® Square Body High-Speed Fuse
  • Rated 40A and 4200VDC
  • 200 kA Rated Breaking Capacity
  • Includes Striker L Brackets for Mounting
  • Optimized for DC Semiconductor Protection

Specifications

Amperage Rating
40 A
Brand Name
Mersen
Case
Ceramic
Connection
L Brackets
Current Rating
40 A
DC Voltage Rating
4200 V
Material
Semiconductor fuse material
Mounting
Bolted
Mounting Type
Striker L Brackets
Series
Protistor®
Size
16.38 x 2.28 x 2.48 in
Size
416 x 58 x 63 mm
Size
Size 600
Sub Brand
Protistor®
Type
Square Body High-Speed Fuse-Links DC Protection
Type Of Indicators
Striker
Voltage Rating
4200 V
Wattage
100 W
Package Dimensions (L x W x H)
16.38 in x 2.28 in x 2.48 in
Package Dimensions (L x W x H)
416 mm x 58 mm x 63 mm
Package Weight (Imperial)
4.233 lb
Package Weight (Metric)
1.920 kg
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Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

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Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

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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 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.