Mersen X212540 - DIN D Fuse-link gG Size DII 500VAC 500VDC 25A Color code Yellow
Mersen

X212540

Alternate Item Number: DIIGG50V25


Documents & Media
Specification Sheet

Contact for Pricing

Minimum Qty: 25

Multiplier: 25

*Contact for lower quantities*

Overview

The Mersen X212540 is a DIN DII fuse-link designed for low-voltage distribution systems adhering to the German DIN standard. This gG-rated fuse-link provides general-purpose protection for cables and power lines, with a rated voltage of 500VAC and 500VDC, and a nominal current rating of 25A. The yellow color code ensures quick identification of the 25A rating. Engineered for safety and operational continuity, the X212540 is suitable for installations where non-trained personnel may perform fuse-link replacements. It is part of the D fuse-system, a foundational generation of screw fuse systems widely deployed in industrial and commercial applications. The gG classification indicates its ability to limit and cut off unacceptable overcurrents and short-circuit currents up to its nominal breaking capacity, protecting both equipment and installations from dynamic effects of high short-circuit currents. This fuse-link features a power dissipation of 3.5W at its rated current, ensuring efficient thermal management. It is compatible with DIN rail mounting systems and supports cable terminations with cross-sections ranging from 1.5 to 10 mm². The compact design and standardized dimensions (25 x 26.8 mm) make it a versatile choice for various low-voltage distribution units.
  • Rated current: 25A with yellow color code for easy identification
  • Voltage rating: 500VAC and 500VDC for versatile applications
  • gG utilization category for general-purpose overcurrent protection
  • Power dissipation: 3.5W at rated current
  • Compatible with DIN rail mounting and cable terminations (1.5 to 10 mm²)

Specifications

AC Voltage Rating
500 V
Amperage Rating
25 A
Application
House incoming units Meter distribution units Distribution cabinets Installation cabinets Fuse boxes
Body Material
Ceramic
Brand Name
Mersen
Color
Yellow
Current Rating
25A
DC Voltage Rating
500 V
Interrupt Rating
50 kA
Mounting
Clip
Series
D fuse-system
Size
1.97 x 0.87 in
Size
50 x 22 mm
Size
DII
Special Features
Insulated body suitable for high mechanical and thermal impacts Top and bottom contacts made of nickel plated copper alloy Safe cut-off short circuits and over currents due to special design of fuse element Clear indication of operation condition due to coloured indicator on top contact Low power dissipation Optimized size Resistant to aging Free of lead, cadmium, mercury, chrome 6 (rohs conformity)
Standard
DIN VDE 0636-301
Type
DIN LV Fuse-Links D
Voltage Rating
500 VAC
Package Dimensions (L x W x H)
1.97 in x 0.87 in x 0.87 in
Package Dimensions (L x W x H)
50 mm x 22 mm x 22 mm
Package Weight (Imperial)
0.059 lb
Package Weight (Metric)
0.027 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.