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Mersen A212543 - DIN Fuse base Size DIII 500VAC 500VDC 63A 1-Pole with touch protection Screw mounting
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Mersen A212543 DIN Fuse base Size DIII 500VAC 500VDC 63A 1-Pole with touch protection Screw mounting

Alternate Item Number: 00072.410000


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Specification Sheet

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Overview

The Mersen A212543 is a single-pole DIN fuse base designed for the DIII size within the established German DIN standard D fuse-system. This first-generation screw fuse-system remains prevalent in numerous installations, particularly in low-voltage distribution units where non-trained personnel may need to change fuse-links. The D fuse-range, including sizes NDZ, DII, DIII, DIV, and DV, offers reliable protection. Specifically, D fuse-links rated 'gG' are engineered for the protection of cables and power lines, effectively limiting and interrupting unacceptable overcurrents and short-circuit currents up to their nominal breaking capacity. These fuse-links also safeguard equipment and installations from the dynamic effects of high short-circuit currents. This Mersen DIII fuse base supports cable terminations with cross-sections ranging from 2.5 to 25 mm², utilizing clamp straps with two screws for secure mounting. It is rated for 500V AC and 500V DC at a nominal current of 63A. The inclusion of touch protection enhances safety during fuse replacement. SKU: A212543. Manufacturer: Mersen. Country of Origin: US. UNSPSC Code: 39121624.
  • Mersen DIII DIN Fuse Base, SKU A212543
  • Single-pole configuration
  • Rated for 500VAC and 500VDC
  • 63A nominal current rating
  • Screw mounting with touch protection
  • Supports cable terminations from 2.5 to 25 mm²
  • Utilizes clamp straps with two screws for secure connection

Specifications

AC Voltage Rating
500 V
Amperage Rating
63 A
Application
House incoming units Meter distribution units Distribution cabinets Installation cabinets Fuse boxes
Brand Name
Mersen
DC Voltage Rating
500 V
Material
Ceramic
Mounting
Fitted Screw
Number of poles
1
Size
2.87 x 1.81 x 2.24;73 x 46 x 57 in;mm
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 0636-3
Type
IEC D0 & D Fuse Bases
Voltage Rating
500 VAC
Package Dimensions (L x W x H)
2.87 in x 1.81 in x 2.24 in
Package Dimensions (L x W x H)
73 mm x 46 mm x 57 mm
Package Weight (Imperial)
0.359 lb
Package Weight (Metric)
0.163 kg
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The D0 fuse-system is installed in low voltage ditribution units, where fuse-links are accessible to non trained persons and can also be replaced by them. The system is the most modern of the screw systems and designed for 400VAC/250VDC networks. The D0 fuse range comprises the standardized fuse sizes D01, D02 and D03. The range of applications for D0 fuse-links for general application is the protection of cables and power lines. They limit and cut off unacceptable overcurrents and short circuit currents up to their nominal breaking capacity. D0 fuse-links gG also protect equipments and installations against dynamic effects of high short circuit currents. 400 Volts 63 amps D02 1 pole Linozed fuse base .

R215042

The D0 fuse-system is installed in low voltage ditribution units, where fuse-links are accessible to non trained persons and can also be replaced by them. The system is the most modern of the screw systems and designed for 400VAC/250VDC networks. The D0 fuse range comprises the standardized fuse sizes D01, D02 and D03. The range of applications for D0 fuse-links for general application is the protection of cables and power lines. They limit and cut off unacceptable overcurrents and short circuit currents up to their nominal breaking capacity. D0 fuse-links gG also protect equipments and installations against dynamic effects of high short circuit currents. 400 Volts 63 amps D02 1 pole Linozed fuse base .
The D0 fuse-system is installed in low voltage ditribution units, where fuse-links are accessible to non trained persons and can also be replaced by them. The system is the most modern of the screw systems and designed for 400VAC/250VDC networks. The D0 fuse range comprises the standardized fuse sizes D01, D02 and D03. The range of applications for D0 fuse-links for general application is the protection of cables and power lines. They limit and cut off unacceptable overcurrents and short circuit currents up to their nominal breaking capacity. D0 fuse-links gG also protect equipments and installations against dynamic effects of high short circuit currents. 400 Volts 16 amps D01 1 pole fuse base fingersafe, snap on mounting, dual terminals .

E201208

The D0 fuse-system is installed in low voltage ditribution units, where fuse-links are accessible to non trained persons and can also be replaced by them. The system is the most modern of the screw systems and designed for 400VAC/250VDC networks. The D0 fuse range comprises the standardized fuse sizes D01, D02 and D03. The range of applications for D0 fuse-links for general application is the protection of cables and power lines. They limit and cut off unacceptable overcurrents and short circuit currents up to their nominal breaking capacity. D0 fuse-links gG also protect equipments and installations against dynamic effects of high short circuit currents. 400 Volts 16 amps D01 1 pole fuse base fingersafe, snap on mounting, dual terminals .

Frequently Asked Questions

What is the voltage rating for Mersen D fuse-bases?

The D fuse-bases have a rated voltage of 500 VAC and 500 VDC.

What is the ampere range for D fuse-links?

The D fuse-links have an ampere range from 25 A to 63 A.

What fuse sizes are available in the D fuse-range?

The D fuse-range comprises sizes NDZ, DII, DIII, DIV, and DV.

What is the purpose of D fuse-links 'gG'?

D fuse-links 'gG' are used for protecting cables and power lines from overcurrents and short circuit currents.

What are the contact materials used in D fuse-bases?

The top and bottom contacts are made of nickel-plated copper alloy.

Are Mersen D fuse-bases RoHS compliant?

Yes, the D fuse-bases are free of lead, cadmium, mercury, and chrome 6, making them RoHS compliant.

What cable cross-sections can be connected to DII fuse-bases?

DII fuse-bases can connect cable cross-sections ranging from 1.5 to 10 mm².

What cable cross-sections can be connected to DIII fuse-bases?

DIII fuse-bases can connect cable cross-sections ranging from 2.5 to 25 mm².

What are the mounting options for DII fuse-bases?

DII fuse-bases are available for DIN rail mounting and screw mounting.

What are the mounting options for DIII fuse-bases?

DIII fuse-bases are available for DIN rail mounting and screw mounting.

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.