Mersen P217639 - DIN D Fuse-link gG/Flink Size DII 500VAC 500VDC 25A Color code Yellow
Mersen

P217639

Alternate Item Number: DIIFK50V25


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Specification Sheet

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Minimum Qty: 25

Multiplier: 25

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Overview

The Mersen P217639 is a DIN DII fuse-link from the D flink series, engineered for reliable circuit protection in low-voltage distribution systems. This 25A fuse-link operates at 500VAC and 500VDC, featuring a yellow color code for quick identification. Part of the first-generation screw fuse system adhering to German DIN standards, the D flink series is widely used in existing installations where non-trained personnel may need to replace components. The D flink range includes sizes NDZ, DII, and DIII, designed for equipment protection with fast-acting response. Unlike slower-acting D gG fuse-links, D flink models provide rapid fault clearance. The P217639 is manufactured in the US and meets established DIN standards, ensuring dependable performance in industrial and commercial power distribution applications. Its robust design and compliance with IEC 60269 standards make it suitable for panelboards, motor control centers, and distribution boards.
  • Rated 25A, 500VAC/500VDC for versatile low-voltage protection
  • Yellow color code for easy identification in DIN DII series
  • Fast-acting D flink design for rapid fault clearance
  • Suitable for DIN rail mounting with clamping yokes (1.5–10 mm²)
  • Compliant with DIN and IEC 60269 standards for industrial reliability

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
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)
Type
DIN LV Fuse-Links D
Voltage Rating
500VAC 500VDC
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
DIN D Fuse-link gG Size DII 500VAC 500VDC 25A Color code Yellow

X212540

DIN D Fuse-link gG Size DII 500VAC 500VDC 25A Color code Yellow
EUROPEAN STYLE TYPE NH FUSE CM 32A. Littelfuse® European style NH fuse links are designed for the protection of conductors and motors. The gL-gG characteristic fuse links are generally used to protect cables and installation lines from overloads and short-circuits. The aM characteristic fuse links are used for the short-circuit protection of motors and switchgear. They are available in NH00C to NH3 sizes up to 630 amperes.

NH00CM32

EUROPEAN STYLE TYPE NH FUSE CM 32A. Littelfuse® European style NH fuse links are designed for the protection of conductors and motors. The gL-gG characteristic fuse links are generally used to protect cables and installation lines from overloads and short-circuits. The aM characteristic fuse links are used for the short-circuit protection of motors and switchgear. They are available in NH00C to NH3 sizes up to 630 amperes.

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.