Mersen MEV50A70-20G - EVpack Fuse 500VDC UL 500VDC IEC 70A Size 20G Max. Rated Breaking Capacity DC: 30 kA @ 500 V, L/R ≤ 2.5 ms Bolted
Mersen

MEV50A70-20G

Alternate Item Number: MEV50A70-20G


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Overview

EVpack-fuse line-up belongs to Mersen’s DC Over-Current protection (O.C.P.) portfolio specifically developed to address on-board electric and hybrid vehicles applications. EVpack-fuse provides the ultimate protection by offering reliable clearing of DC fault currents in challenging environments and complies with the high-quality requirements of the automotive industry. The MEV55C has specifically engineered and tested to provide best-in-class protection performance for auxiliary circuits: Up to 550VDC, Current rating (In)= 5 to 50A, Interrupting Rating (IR) = 20kA,L/R ≤1ms, Minimum Breaking Capacity (MBC) as low as 2xIn for a perfect matching with cable protection. The MEV50A has been specifically engineered and tested to provide best-in-class protection performance for main battery and on-board charging protection: Up to 500VDC, Current rating (In)= 60 to 800A, Interrupting Rating (IR) = 30kA, L/R ≤ 2.5ms, Minimum Breaking Capacity (MBC) as low as 2xIn or a perfect matching with DC contactor.

    Specifications

    Amperage Rating
    70 A
    Application
    EV/HEV Battery pack protection Battery Disconnect Unit (BDU) Battery Management Systm (BMS) Battery Junction Box for auxiliaries On-Board Charging
    Brand Name
    Mersen
    Case
    GMG
    Connection
    Bolted
    Connection Type
    Bolted
    Current Rating
    70 A
    DC Voltage Rating
    500 V
    Mounting
    Bolted
    Series
    EVpack-fuse
    Size
    3.19 x 0.79 in
    Size
    81 x 20 mm
    Size
    Size 20G
    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): 5 to 800A Interrupting Rating (IR) for MEV55C: 20kA @550VDC, L/R = 1ms Interrupting Rating (IR) for MEV50A: 30kA @500VDC, L/R = 2.5ms
    Standard
    Complies to Automotive IATF 16949:2016 Quality System IEC 60 269-4 ISO 8820-8 JAS0 D622
    Type
    Battery Pack Fuses
    Voltage Rating
    500 VDC
    Voltage Rating
    500 V
    Package Dimensions (L x W x H)
    3.19 in x 0.79 in x 0.79 in
    Package Dimensions (L x W x H)
    81 mm x 20 mm x 20 mm
    Package Weight (Imperial)
    0.090 lb
    Package Weight (Metric)
    0.041 kg
    EVpack Fuse 500VDC UL 500VDC IEC 400A Size 30G Max. Rated Breaking Capacity DC: 30 kA @ 500 V, L/R ≤ 2.5 ms Bolted

    MEV50A400-30G

    EVpack Fuse 500VDC UL 500VDC IEC 400A Size 30G Max. Rated Breaking Capacity DC: 30 kA @ 500 V, L/R ≤ 2.5 ms Bolted

    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.