Mersen 1SCM10-1 Fuse Block 1500VAC 1500VDC 800A 1-Pole M10 no washer
Alternate Item Number: 1SCM10-1
UPC: 782001463274
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Contact for Pricing
Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.
Overview
- Rated 1500VAC/VDC and 800A for high-voltage applications
- M10 stud-type connectors with 190 lb-in tightening torque
- Modular two-piece phenolic insulator design for heat resistance
- Compatible with Mersen DC fuses: D100QS, D70QS, D1000S, D700S, MF-A, MEV70A, MEV100A
Specifications
AC Voltage Rating | 1500 V |
Amperage Rating | 800 A |
Application | Modular semiconductor fuse blocks Volts: 1000VAC/DC (SCCR: 200kA) 1500VAC/DC (SCCR: 100kA) Amps: 800A Maximum |
Connection Type | M10 Stud |
Connection Type | M10 no washer |
Current Rating | 800 A |
Current Rating | 800A |
DC Voltage Rating | 1500 V |
Material | Thermoplastic |
Material | Phenolic |
Mounting | Screw |
Mounting Type | Modular |
Mounting Type | Modular mounting |
Number of Poles | 1 |
Operating Temperature, Maximum | 176 F |
Operating Temperature, Maximum | 80 °C |
Poles | 1-pole |
Series | 1SC |
Series | 1SC and 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 File E52283 |
Type | Semiconductor & Special Purpose Fuse Bases & Accessories |
Voltage Rating | 1500VAC/1500VDC |
Voltage Rating | 1500VAC 1500VDC |
Voltage Rating | 1500 VAC/VDC |
Package Dimensions (L x W x H) | 2.12 in x 3.82 in x 1 in |
Package Dimensions (L x W x H) | 53.848 mm x 97.028 mm x 25.4 mm |
Package Weight (Imperial) | 0.3800 lb |
Package Weight (Metric) | 0.1720 kg |

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The Littelfuse Class CC, CD and midget blocks offer generous space savings and enhanced value. DIN-rail mounting and universal mounting holes are available as well as an indication feature on all Class CD fuse blocks.Frequently Asked Questions
What is the maximum voltage rating for the 1SC fuse block?
The 1SC fuse block has a maximum voltage rating of 1500VAC/DC with a 100kA SCCR, and 1000VAC/DC with a 200kA SCCR.
What is the maximum ampere rating for the 1SC fuse block?
The maximum ampere rating for the 1SC fuse block is 800A.
What is the maximum ampere rating for the 1MSC fuse block?
The maximum ampere rating for the 1MSC fuse block is 600A.
What is the SCCR for the 1MSC fuse block?
The SCCR for the 1MSC fuse block is 200kA.
What are the UL recognition files for the 1SC and 1MSC fuse blocks?
The UL recognition file for the 1SC is E52283, and for the 1MSC is E35113.
What is the tightening torque for the 1SC250 fuse block mounting hardware?
The tightening torque for the 1SC250 fuse block mounting hardware is 25 lb.-in.
What is the tightening torque for the 1MSC101 fuse block cable connector?
The tightening torque for the 1MSC101 fuse block cable connector is 70 lb.-in.
What wire range is supported by the 1MSC104 fuse block?
The 1MSC104 fuse block supports Al/Cu (2) 500kcmil - #6 wire range.
What type of connector is offered on integral box connector versions?
Integral box connector versions are offered to allow for user preference of wire terminations and provide greater heat dissipation.
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.







