Mersen Q082400 - Square Body High-Speed Fuse Protistor® Size 120 gR 750VDC IEC 63A With Striker Flush ends metric threads
Mersen

Q082400

Alternate Item Number: D120GC75V63TF


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Specification Sheet

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Overview

The Mersen Q082400 is a high-speed fuse-link from the Protistor® series, specifically designed for demanding DC applications such as railway power and auxiliary circuits. Engineered to meet the stringent performance requirements of modern DC equipment, this fuse-link offers superior protection. Its square body design and Size 120 dimensions ensure robust integration into various systems. Operating at a rated voltage of 750VDC and a current rating of 63A, the Q082400 provides critical overcurrent and short-circuit protection. Key features include a very low I²t (pre-arcing and clearing) to minimize damage to sensitive protected components during fault conditions, and reduced power dissipation (watts loss) for improved efficiency and extended operational life. The inclusion of a striker mechanism facilitates fault indication and simplifies system monitoring. This fuse-link adheres to IEC standards, ensuring compatibility and reliability within global electrical infrastructure. Its flush ends with metric threads allow for secure and precise mounting. The Q082400 is an essential component for safeguarding high-power DC systems where rapid and reliable interruption of fault currents is paramount. This Mersen fuse-link is built for critical protection, offering a rated breaking capacity of 50 kA. The power dissipation at its rated current of 63A is not explicitly listed for this specific SKU in the provided catalog excerpts, but similar fuses in the Protistor® series exhibit power dissipation values that contribute to efficient operation. The gR classification indicates its suitability for general purpose DC applications requiring fast-acting protection. The Q082400 is a reliable choice for applications demanding precise and rapid fault interruption.
  • High-speed fuse-link for DC applications
  • Rated 63A and 750VDC
  • Size 120 square body design
  • gR classification for general DC protection
  • Includes striker for fault indication

Specifications

Amperage Rating
63 A
Application
Protection of inverters Protection of motor drives Protection of UPS systems Railway power and auxiliary circuits 750VDC or less equipments
Brand Name
Mersen
Case
Ceramic
Connection
End Contact with Threaded Holes
Connection Type
Flush Metric Threads
Connection Type
Flush ends metric threads
Current Rating
63 A
Current Rating
63A
DC Voltage Rating
750 V
Mounting
Bolted
Mounting Type
Flush metric threads
Series
Protistor®
Size
5 x 1.57 x 1.77 in
Size
127 x 40 x 45 mm
Size
Size 120
Special Features
Multiple body sizes and terminals or blades combination Very low I²t Extremely fast acting Eliminate all overloads Excellent cycling capability
Standard
EU conformity REACH compliant IEC 60269-4 Compliance
Sub Brand
Protistor®
Type
Square Body High-Speed Fuse-Links DC Protection
Type Of Indicators
Striker
Voltage Rating
750 VDC
Voltage Rating
750VDC
Voltage Rating
750 V
Wattage
10.4 W
Package Dimensions (L x W x H)
5 in x 1.57 in x 1.77 in
Package Dimensions (L x W x H)
127 mm x 40 mm x 45 mm
Package Weight (Imperial)
1.433 lb
Package Weight (Metric)
0.650 kg
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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.