Mersen J207054 High Speed Fuse-link D D0 RECTICUR Size DV gR 500VAC 440VDC IEC 125A
Alternate Item Number: DVGR50V125
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Overview
- Ultra-fast acting gR fuse-link for semiconductor protection (diodes, thyristors, motor drives)
- Rated 500VAC / 440VDC, 125A, 200kA breaking capacity
- IEC-certified, part of Mersen’s D-system (DII-DV compatible)
- Power dissipation: 29.9W at rated current, pre-arcing I²t: 3.425 kA²s
- Designed for accessible installations with non-trained personnel
Specifications
AC Voltage Rating | 500 V |
Amperage Rating | 125 A |
Brand Name | Mersen |
Case | Ceramic |
Current Rating | 125A |
DC Voltage Rating | 440 V |
Mounting | Clip |
Series | D gR RECTICUR |
Size | 2.48 x 1.77 in |
Size | 63 x 45 mm |
Size | DV |
Special Features | Insulated body suitable for high mechanical and thermal impacts Top and bottom contacts made of nickel-plated/silver-plated copper alloy Safe cut off short circuits and over currents due special design of fuse element Clear indication of operation condition due coloured indicator on top contact Low power dissipation Optimized size Resistant to aging |
Standard | IEC 60 269-4 DIN EN 60269-4 (VDE 0636-4) DIN VDE 0636-3 |
Type | IEC High-Speed D & D0 Fuse-Links AC-DC Protection |
Voltage Rating | 500 V |
Wattage | 26 W |
Package Dimensions (L x W x H) | 2.48 in x 1.77 in x 1.77 in |
Package Dimensions (L x W x H) | 63 mm x 45 mm x 45 mm |
Package Weight (Imperial) | 0.046 lb |
Package Weight (Metric) | 0.021 kg |
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Frequently Asked Questions
What is the rated voltage for RECTICUR D gR fuses?
The RECTICUR D gR fuses have a rated voltage of 500VAC and 440VDC.
What is the ampere range for these semiconductor protection fuses?
The rated current range for these D fuse-links is from 2A up to 200A.
What standards do the RECTICUR D gR fuses comply with?
These fuses comply with IEC 60 269-4, DIN EN 60269-4 (VDE 0636-4), and DIN VDE 0636-3 standards.
What is the breaking capacity of these fuses?
The rated breaking capacity for these fuses is 100 kA AC.
What are the RECTICUR D gR fuses used for?
These fuses are dedicated to semiconductor protection, for components like diodes, thyristors, or AC/DC motor drives.
What does the 'gR' designation mean for these fuses?
The 'gR' designation indicates that these are ultra-fast acting fuses for semiconductor protection, with 'R' standing for Rectifier.
What are the key features of the RECTICUR D gR fuse body?
The fuse body is insulated and suitable for high mechanical and thermal impacts.
What material are the top and bottom contacts made of?
The top and bottom contacts are made of a nickel-plated/silver-plated copper alloy.
How do these fuses indicate operation condition?
They have a clear indication of operation condition via a colored indicator on the top contact.
What is the power dissipation for a 125A RECTICUR D gR fuse?
The power dissipation at In for the DVGR50V125 fuse is 26 W.
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.