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Mersen MEV100A50-4 - EVpack Fuse 1000VDC UL 50A Max. Rated Breaking Capacity DC: 20 kA @ 1000 V L/R ≤ 1 ms Bolted
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Mersen MEV100A50-4 EVpack Fuse 1000VDC UL 50A Max. Rated Breaking Capacity DC: 20 kA @ 1000 V L/R ≤ 1 ms…

Alternate Item Number: MEV100A50-4

UPC: 782001481384


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Specification Sheet

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Overview

The Mersen MEV100A50-4 is a critical component within Mersen's EVpack-fuse line, specifically engineered for DC Over-Current Protection (O.C.P.) in electric and hybrid vehicle applications. This fuse provides reliable clearing of DC fault currents, meeting the stringent quality requirements of the automotive industry. Designed for main battery and on-board charging protection, it operates up to 1000VDC with a current rating (In) of 50A. The MEV100A series features an Interrupting Rating (IR) of 20 kA at 1000 VDC with an L/R ratio of ≤ 1 ms. It also boasts a self-certified IR of 100 kA at 1000 VDC, L/R ≤ 3.7 ms, with UL Recognition pending. Key benefits include its design for DC applications, low watt losses, and high cycling performance, offering full coverage of battery module voltage and current in an ultra-compact size. This fuse is essential for EV/HEV systems, battery pack protection, Battery Disconnect Units (BDU), Battery Management Systems (BMS), Battery Junction Boxes for auxiliaries, and on-board chargers. It complies with the Automotive IATF 16949:2016 Quality System standards.
  • Designed for DC applications in electric and hybrid vehicles
  • 1000 VDC maximum operating voltage
  • 50A current rating (In)
  • 20 kA @ 1000 VDC rated breaking capacity (IR)
  • L/R ≤ 1 ms time constant

Specifications

Amperage Rating
50 A
Application
EV/HEV Battery pack protection Battery Disconnect Unit (BDU) Battery Management System (BMS) Battery Junction Box for auxiliaries On-board charger
Brand Name
Mersen
Connection
Bolted
Connection Type
Bolted
Current Rating
50 A
DC Voltage Rating
1000 V
Mounting
Bolted
Series
EVpack
Size
4.37 x 1 in
Size
111 x 25.4 mm
Special Features
Design for DC applications Low watt losses High cycling performance Full coverage of battery module voltage and current Ultra compact size Current Ratings (In): 8 to 300A Interrupting Rating (IR): 20kA @ 1,000 VDC, L/R =1ms Self Certified IR = 100kA, 1000VDC, L/R = 3.7ms (UL Recognition Pending)
Standard
Complies to Automotive IATF 16949:2016 Quality System Power Cycling & Vibration JASO D622
Type
Battery Pack Fuses
Voltage Rating
1000 V
Package Dimensions (L x W x H)
4.37 in x 1 in x 1 in
Package Dimensions (L x W x H)
111 mm x 25.4 mm x 25.4 mm
Package Weight (Imperial)
0.258 lb
Package Weight (Metric)
0.117 kg
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Fuse Block 600VAC 600VDC Class CC 30A 3-Pole Pressure Plate with Reinforced Clip

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Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

LCC5

POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in

Frequently Asked Questions

What is the maximum operating voltage for the MEV100A50-4 fuse?

The Mersen MEV100A50-4 fuse is designed for a maximum operating voltage of 1000 VDC.

What is the rated breaking capacity of this Mersen fuse?

The MEV100A50-4 fuse has a rated breaking capacity (IR) of 20 kA at 1000 VDC.

What is the L/R time constant for the MEV100A50-4 fuse?

The L/R time constant for the MEV100A50-4 fuse is specified as ≤ 1 ms.

Does this fuse comply with automotive quality standards?

Yes, the MEV100A50-4 fuse complies with the Automotive IATF 16949:2016 Quality System.

What applications is the Mersen EVpack fuse designed for?

The EVpack fuse is specifically developed for on-board electric and hybrid vehicles, including battery pack protection, Battery Disconnect Units (BDU), and on-board chargers.

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.