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Overview
- Mersen 1MSC101 semiconductor fuse block for reliable circuit protection.
- 600 Volt, 100 Amp rating suitable for industrial applications.
- Modular mounting offers flexibility for various fuse lengths.
- Available with stud-type or integral box connector options.
- Integral box connector enhances heat dissipation for improved performance.
Specifications
Amperage Rating | 100 A |
Brand Name | Ferraz Shawmut |
Connection | Box |
Connection Type | Stud or Box Connector |
Current Rating | 100 A |
Mounting | Screw Mount |
Mounting Type | Modular mounting |
Phase | 1 |
Series | 1MSC |
Special Features | Modular two-piece design Compact footprint Stud versions Heat dissipating integral box connector versions Accommodates a large range of semiconductor fuses Rugged phenolic insulators |
Standard | UL Recognized Component to standard 4248-1, File E171957 |
Type | Semiconductor Fuseholders And Blocks |
Voltage Rating | 600 VAC |
Package Dimensions (L x W x H) | 0 IN x 0 IN x 0 IN |
Package Weight (Imperial) | 0.000 L |

1MSC108
Mersen 1SC and 1MSC semiconductor fuse blocks feature modular mounting that offers greater flexibility in adjusting to various fuse lengths. Both stud type and integral box connector versions are offered to allow for user preference of wire terminations. The integral box connector versions also provide for greater heat dissipation. All modular blocks are supplied in pairs but need to be ordered as two items to suit one fuse. Mounting hardware is supplied with the blocks 2500 Volts 400 Amps .25 inch series.
1MSC104
Mersen 1SC and 1MSC semiconductor fuse blocks feature modular mounting that offers greater flexibility in adjusting to various fuse lengths. Both stud type and integral box connector versions are offered to allow for user preference of wire terminations. The integral box connector versions also provide for greater heat dissipation. All modular blocks are supplied in pairs but need to be ordered as two items to suit one fuse. Mounting hardware is supplied with the blocks 600 Volts 600 Amps .375 inch series.
20616R
Mersen class R fuseholders accommodate all class R power fuses. A choice of screw, pressure plate, and box connectors connectors fit a wide range of stranded or solid copper or aluminum wire. Insulators are either molded glass-filled polycarbonate (GFPC) or phenolic with verified dielectric strength in excess of 2500V. 30, 60, 100 and 200A fuseholders feature a unique adder block to form multi-pole segmented blocks of as many poles as desired. All fuse clips are made of high conductivity tin-plated copper 250 Volts 60 amps 1 poles screw connection.
1MSC102
Mersen 1SC and 1MSC semiconductor fuse blocks feature modular mounting that offers greater flexibility in adjusting to various fuse lengths. Both stud type and integral box connector versions are offered to allow for user preference of wire terminations. The integral box connector versions also provide for greater heat dissipation. All modular blocks are supplied in pairs but need to be ordered as two items to suit one fuse. Mounting hardware is supplied with the blocks 600 Volts 400 Amps .25 inch series.
1MSC103
Mersen 1SC and 1MSC semiconductor fuse blocks feature modular mounting that offers greater flexibility in adjusting to various fuse lengths. Both stud type and integral box connector versions are offered to allow for user preference of wire terminations. The integral box connector versions also provide for greater heat dissipation. All modular blocks are supplied in pairs but need to be ordered as two items to suit one fuse. Mounting hardware is supplied with the blocks 600 Volts 400 Amps .375 inch series.
K214024
DIN Fuse base Neozed Size D03 400VAC 100A 1-Pole with touch prot. Screw mounting Clamp Strap / Screw
J213011
DIN Fuse base Neozed Size D03 400VAC 100A 1-Pole without touch prot. Screw mounting Clamp Strap / Screw
F216573
DIN Fuse base Neozed Size D02 400VAC 63A 3-Pole without touch protection Screw mounting Clamp Strap
F213008
DIN Fuse base Neozed Size D02 400VAC 63A 1-Pole without touch prot. Screw mounting Clamp Strap / ScrewFrequently 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.


