Mersen MDC08B100B Fuse MDC08B - DC Distribution 80VAC 80VDC 100A Type Battery Module Bolted
Alternate Item Number: MDC08B100B
UPC: 782001510565
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Contact for Pricing
Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.
Overview
- Designed for DC applications, specifically battery module protection
- 80 VDC voltage rating and 100 A current rating
- Bolted connection type for secure installation
- Slow melting time for coordination with upstream fuses
- UL Recognized (File E60314) with 10kA interrupting rating
Specifications
AC Voltage Rating | 80 V |
Amperage Rating | 100 A |
Application | Battery modules protection Stationary DC systems Battery systems |
Body Material | Melamine fiber glass |
Connection | Bolted |
Connection Material | Tin-Plated Copper |
Connection Type | Bolted |
Current Rating | 100 A |
DC Voltage Rating | 80 V |
Mounting | Bolted |
Series | MDC08B |
Size | 3.19 x 0.63 x 0.4 in |
Size | 81.026 x 16.002 x 10.16 mm |
Special Features | Designed for DC applications Low watt losses High cycling performance Low & high current interrupting capability Ultra compact size |
Standard | UL Recognized Components (all products) E60314 |
Type | DC Fuses |
Voltage Rating | 80 VAC / 80 VDC |
Package Dimensions (L x W x H) | 3.19 in x 0.63 in x 0.4 in |
Package Dimensions (L x W x H) | 81.026 mm x 16.002 mm x 10.16 mm |
Package Weight (Imperial) | 0.040 lb |
Package Weight (Metric) | 0.018 kg |

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What is the DC Minimum Breaking Capacity (MBC) for the MDC08B100B?
The DC Minimum Breaking Capacity (MBC) for the MDC08B100B is 200A at a rated voltage of 80V DC.
What is the rated voltage for the MDC08B series fuse?
The rated voltage for the MDC08B series fuse is 80V DC.
What is the current rating range for this fuse series?
The rated current range for the MDC08B series is from 35A to 500A.
What is the interrupting rating for the MDC08B series fuses?
The DC Max Interrupting Rating for the MDC08B series is 10kA at 80V DC.
What approvals or standards does the MDC08B series meet?
The MDC08B series is UL Recognized Components (all products) with E60314.
What type of protection does the MDC08B series provide?
The MDC08B series provides back-up protection to the battery module during shipping, transportation, and handling.
What is the intended application for the MDC08B fuse?
The MDC08B fuse is designed and tested for the protection of battery modules.
What is the time constant (L/R) for the MDC08B series fuses?
The DC Time Constant L/R for the MDC08B series fuses is less than or equal to 1ms.
Does the MDC08B series fuse have slow melting time?
Yes, the battery module fuse is designed to provide back-up protection while maintaining a slow melting time for coordination with upstream fuses.
What are the key features of the MDC08B series fuse?
Key features include DC application design, low watt losses, high cycling performance, low & high current interrupting capability, and ultra compact size.
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.










