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Mersen MEV50A150-30G - EVpack Fuse 500VDC UL 500VDC IEC 150A Size 30G Max. Rated Breaking Capacity DC: 30 kA @ 500 V, L/R ≤ 2.5 ms Bolted
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Mersen MEV50A150-30G EVpack Fuse 500VDC UL 500VDC IEC 150A Size 30G Max. Rated Breaking Capacity DC: 30 kA @…

Alternate Item Number: MEV50A150-30G


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Specification Sheet

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Overview

The Mersen MEV50A150-30G is an EVpack DC fuse designed for over-current protection in electric vehicle (EV), hybrid electric vehicle (HEV), and battery electrical storage systems. This fuse offers reliable clearing of DC fault currents with a maximum voltage rating of 500 VDC and a current rating (In) of 150A. It features a high interrupting rating (IR) of 30 kA at 500 VDC, with an L/R ratio of less than or equal to 2.5ms, ensuring rapid response to fault conditions. Engineered for DC applications, the MEV50A150-30G provides low watt losses and high cycling performance, contributing to operational efficiency. Its ultra-compact size ensures full coverage of battery module voltage and current requirements. This fuse is suitable for battery pack protection, Battery Disconnect Units (BDU), battery junction boxes for auxiliaries, battery chargers, and supercapacitor pack protection. It also serves as backup protection for DC relays, disconnectors, and switches, and for maintenance safety disconnects (MSD). The MEV50A150-30G adheres to IEC 60 269-4 and ISO 8820-8 standards. Its bolted connection type ensures secure installation. This Mersen fuse is a critical component for ensuring the safety and reliability of high-current DC systems in modern electric mobility and energy storage solutions.
  • Designed for DC applications in EV/HEV and energy storage systems
  • 500 VDC maximum voltage rating
  • 150A current rating (In)
  • 30 kA interrupting rating (IR) at 500 VDC
  • L/R ratio ≤ 2.5ms for rapid fault clearing
  • Bolted connection for secure, high-current DC applications
  • Part of Mersen's DC over-current protection portfolio for EV/HEV systems

Specifications

Amperage Rating
150 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
DC Voltage Rating
500 V
Mounting
Bolted
Size
3.62 x 1.18 in
Size
92 x 30 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): 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 V
Package Dimensions (L x W x H)
3.62 in x 1.18 in x 1.18 in
Package Dimensions (L x W x H)
92 mm x 30 mm x 30 mm
Package Weight (Imperial)
0.220 lb
Package Weight (Metric)
0.100 kg
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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.

Frequently Asked Questions

What is the maximum DC voltage rating for the MEV50A fuse?

The MEV50A fuse has a maximum DC voltage rating of 500 VDC.

What is the current rating range for the MEV50A fuse series?

The current rating range (In) for the MEV50A fuse series is from 60A to 800A.

What is the interrupting rating (IR) of the MEV50A fuse?

The interrupting rating (IR) for the MEV50A fuse is 30kA at 500VDC, with an L/R of less than or equal to 2.5ms.

What applications are the MEV50A fuses designed for?

These fuses are designed for DC applications such as EV/HEV, Battery Electrical Storage Systems, and battery pack protection.

What standards does the MEV50A fuse comply with?

The MEV50A fuse complies with IEC 60 269-4, ISO 8820-8, and JASO D622 standards.

What is the minimum breaking capacity (MBC) for the MEV50A-30G fuse?

The minimum breaking capacity (MBC) for the MEV50A-30G fuse is 750A.

What is the power dissipation at 0.5 In for the MEV50A150-30G fuse?

The power dissipation at 0.5 In for the MEV50A150-30G fuse is 3.5W.

What is the weight of the MEV50A150-30G fuse?

The weight of the MEV50A150-30G fuse is 0.1 kg.

What is the recommended mounting torque for the MEV50A-30G fuse?

The recommended mounting torque for the MEV50A-30G fuse is 15 N m with an M8 bolt size.

What is the maximum time to clear MBC for the MEV50A150-30G fuse?

The maximum time to clear MBC for the MEV50A150-30G fuse is 0.5 seconds.

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.