Mersen MEV55C12-S EVpack Fuse 550VDC UL 12A Max. Rated Breaking Capacity DC: 20 kA @ 550 V L/R ≤ 1 ms…
Alternate Item Number: MEV55C12-S
UPC: 782001482596
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Overview
- Rated for 550VDC maximum operation
- 12A current rating with 20kA interrupting capacity
- L/R ratio ≤1ms for fast fault current clearance
- Surface screw mount for easy installation
- Low watt losses and high cycling performance
Specifications
Amperage Rating | 12 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 |
Connection | Surface Screw Mount |
Connection Material | Tin-Plated Copper |
DC Voltage Rating | 550 V |
Mounting | PC Mount |
Size | 2.52 x 0.41 in |
Size | 64 x 10.3 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 |
Package Dimensions (L x W x H) | 2.52 in x 0.41 in x 0.56 in |
Package Dimensions (L x W x H) | 64 mm x 10.3 mm x 14.1 mm |
Package Weight (Imperial) | 0.022 lb |
Package Weight (Metric) | 0.010 kg |
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Frequently Asked Questions
What is the maximum DC voltage rating for MEV55C and MEV50A fuses?
The MEV55C fuses have a maximum DC voltage rating of 550VDC, while the MEV50A fuses have a maximum DC voltage rating of 500VDC.
What is the operating temperature range for these fuses?
The operating temperature range for these fuses is from -40°C to 125°C.
What are the available current ratings for the MEV55C fuses?
The MEV55C fuses are available in current ratings from 5A to 50A.
What are the available current ratings for the MEV50A fuses?
The MEV50A fuses are available in current ratings from 60A to 800A.
What is the interrupting rating (IR) for the MEV55C fuses?
The interrupting rating (IR) for the MEV55C fuses is 20kA at 550VDC.
What is the interrupting rating (IR) for the MEV50A fuses?
The interrupting rating (IR) for the MEV50A fuses is 30kA at 500VDC.
What is the L/R time constant for MEV55C fuses?
The L/R time constant for MEV55C fuses is less than or equal to 1ms.
What is the L/R time constant for MEV50A fuses?
The L/R time constant for MEV50A fuses is less than or equal to 2.5ms.
What are the available mounting styles for MEV55C fuses?
MEV55C fuses are available in Ferrule, Surface Mount (-S), and PC Board Mount (-P) styles.
What is the power dissipation for a MEV55C12-S fuse at 0.5 In?
The power dissipation for a MEV55C12-S fuse at 0.5 In is 0.47 W.
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.