Authorized Mersen Distributor
Mersen MDC07A50S - Fuse MDC07A - DC Distribution 600VAC 700VDC 50A Type Auxiliary Surface Screw Mount
More images

Mersen MDC07A50S Fuse MDC07A - DC Distribution 600VAC 700VDC 50A Type Auxiliary Surface Screw Mount

Alternate Item Number: MDC07A50S

UPC: 782001507572


Documents & Media
Technical DrawingLine DrawingSpecification Sheet

Contact for Pricing

Minimum Qty: 5

Multiplier: 5

*Contact for lower quantities*

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Mersen MDC07A50S is a 50A DC distribution fuse designed for 700VDC systems with 600VAC compatibility, ensuring versatile application across both DC and AC environments. Rated for a 20kA interrupting capacity and a DC time constant of ≤1ms, this Type MDC auxiliary fuse provides precise current limitation in critical DC power applications, including renewable energy, battery storage, EV charging, and industrial DC power systems. Its ultra-compact design supports coordination in complex DC architectures, reducing nuisance tripping and fault energy while maintaining high cycling performance for reliable operation in auxiliary circuits, DC cabling, and bus systems. With a minimum breaking capacity of 175A at 700VDC, the MDC07A50S delivers field-proven protection for 50A DC circuits in high-voltage distribution environments, ensuring long-term durability and safety. The fuse’s low watt losses further enhance energy efficiency, making it a cost-effective solution for demanding DC power applications.
  • 50A rated current for DC distribution systems up to 700VDC
  • 20kA interrupting rating with ≤1ms DC time constant
  • Low watt losses and high cycling performance for reliability
  • Compact design for coordination in complex DC architectures

Specifications

AC Voltage Rating
600 V
Amperage Rating
50 A
Application
DC Auxiliary Circuits Electrical Energy Storage EV Charging Critical Power UPS Protection.
Body Material
GMG
Brand Name
Mersen
Connection
Surface Screw Mount
Connection Material
Tin-Plated Copper
Current Rating
50A
DC Voltage Rating
700 V
Mounting
Screw
Mounting Type
Surface Screw Mount
Nema Rating
Type Auxiliary Surface Screw Mount
Series
MDC
Size
2.52 x 0.41 in
Size
64.008 x 10.312 mm
Special Features
Designed for DC applications Low watt losses High cycling performance Ultra compact size
Standard
UL Recgonized Component File E60314
Type
DC Fuses
Voltage Rating
600VAC 700VDC
Voltage Rating
600VAC/700VDC
Package Dimensions (L x W x H)
2.52 in x 0.4 in x 0.56 in
Package Dimensions (L x W x H)
64.008 mm x 10.16 mm x 14.224 mm
Package Weight (Imperial)
0.022 lb
Package Weight (Metric)
0.010 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 Block 600VAC 600VDC Class CC 30A 3-Pole Pressure Plate with Reinforced Clip

30323R

Fuse Block 600VAC 600VDC Class CC 30A 3-Pole Pressure Plate with Reinforced Clip
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 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 rated voltage for the MDC07A50S?

The MDC07A50S is rated for 700VDC and 600VAC.

What is the interrupting rating of the MDC07A50S?

The fuse has a 20kA interrupting rating at 700VDC.

What is the minimum breaking capacity of the MDC07A50S?

The minimum breaking capacity is 175A at 700VDC.

What applications is the MDC07A50S suitable for?

The fuse is designed for DC distribution, battery storage, EV charging, and industrial DC power systems.

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.