Mersen MF150A-4 - Battery Module Fuse 100VDC Max - 150A with Bolted Minimum breaking capacity: 540A Max. Rated Breaking Capacity DC: 20 kA @ 100 V L/R ≤ 1.5 ms
Mersen

MF150A-4

Alternate Item Number: MF150A-4

UPC: 782001482114


Documents & Media
Specification Sheet

Contact for Pricing

Minimum Qty: 5

Multiplier: 5

*Contact for lower quantities*

Overview

The Mersen MF150A-4 is a specialized DC battery module fuse designed for high-performance over-current protection in Battery Electrical Storage Systems (BESS), Electric Vehicles (EV/HEV), and supercapacitor applications. Rated for 100VDC maximum and 150A continuous current, this bolted fuse delivers a maximum interrupting rating of 20kA with an L/R time constant of ≤1.5ms, ensuring rapid fault current interruption while maintaining coordination with upstream protection devices. Engineered for DC-specific fault conditions, the MF150A-4 features a minimum breaking capacity of 420A and power dissipation of 2.7W at 0.5In, optimizing thermal performance and energy efficiency. Its ultra-compact round body design (28g) supports high cycling performance and low watt losses, critical for battery module protection during shipping, handling, and system operation. The fuse meets JASO D622 standards for power cycling and vibrations, and is UL Recognized under E60314, ensuring compliance with stringent automotive and industrial safety requirements. With a maximum clearing time of 10 seconds at minimum breaking capacity, the MF150A-4 provides reliable backup protection while allowing coordination with traditional fast-acting upstream fuses. Ideal for applications requiring precise DC over-current protection, this fuse is distributed by Gross Automation and manufactured in the USA.
  • 100VDC maximum rating with 150A continuous current
  • 20kA interrupting rating at L/R ≤1.5ms for rapid fault clearance
  • Minimum breaking capacity of 420A (MBC) with 10s clearing time
  • Ultra-compact round body design (28g) for high-density installations
  • UL Recognized and JASO D622 compliant for automotive/industrial safety

Specifications

Amperage Rating
150 A
Application
Battery modules protection Electrical Energy Storage Supercapacitor module protection
Brand Name
Mersen
Connection
Bolted
Connection Type
Bolted
Current Rating
150 A
DC Voltage Rating
100 V
Mounting
Bolted
Series
M- fuse
Size
2.66 x 1 in
Size
67.6 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): 50 to 200A Interrupting Rating: 20kA @ 100VDC, L/R =1.5ms
Standard
IEC 60 269-4 UL/cUL recognized component, UL file E76491 and E60314
Type
Battery Module Fuses
Voltage Rating
100 V
Package Dimensions (L x W x H)
2.66 in x 1 in x 1 in
Package Dimensions (L x W x H)
67.6 mm x 25.4 mm x 25.4 mm
Package Weight (Imperial)
0.150 lb
Package Weight (Metric)
0.068 kg
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
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 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.