Mersen 1SCM8 - Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
Mersen

1SCM8

Alternate Item Number: 1SCM8

UPC: 782001376529

Contact for Pricing

Overview

The Mersen 1SCM8 is a single-pole semiconductor fuse block designed for high-voltage DC applications. It supports a maximum voltage rating of 1500VDC and a current rating of 400A, with a Short Circuit Current Rating (SCCR) of 100kA. This block features a modular two-piece design and utilizes rugged phenolic insulators for reliable operation. The Mersen 1SCM8 is UL Recognized Component (E52283) and IEC compliant. It is compatible with various Mersen DC fuses including D1000S (up to 200A), D700S (up to 400A), D100QS (up to 200A), D70QS (up to 400A), MF-A, MEV70A, and MEV100A (up to 400A) DC fuses. The fuse tightening torque is 60 lb.-in., and the mounting torque is 25 lb.-in. Contacts are made of zinc-plated steel. Rated DC voltage is 1000V, with a maximum voltage of 1500V. SKU: 1SCM8.
  • 1500VDC Maximum Voltage Rating
  • 400A Current Rating
  • Single-Pole Configuration
  • M8 Stud Type
  • UL Recognized Component (E52283) and IEC Compliant

Specifications

AC Voltage Rating
1500 V
Amperage Rating
400 A
Application
Modular semiconductor fuse blocks Volts: 1000VAC/DC (SCCR: 200kA) 1500VAC/DC (SCCR: 100kA) Amps: 800A Maximum
Brand Name
Mersen
Connection
Stud
Connection Type
M8 Stud
Current Rating
400 A
Current Rating
400A
DC Voltage Rating
1500 V
Material
Thermoplastic
Material
Phenolic
Maximum Operating Temperature
80 C
Mounting
Direct Screw Mount
Number Of Poles
1
Phase
1
Poles
1-pole
Series
1SCM
Size
1.87 x 2.45 x 0.7 in
Size
47.498 x 62.23 x 17.78 mm
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
1000 VAC
Voltage Rating
1500VAC/1500VDC
Voltage Rating
1500VDC
Voltage Rating
1500 VAC/DC
Package Dimensions (L x W x H)
1.87 in x 2.45 in x 0.7 in
Package Dimensions (L x W x H)
47.498 mm x 62.23 mm x 17.78 mm
Package Weight (Imperial)
0.200 lb
Package Weight (Metric)
0.091 kg
Fuse Block 1500VAC 1500VDC 800A 1-Pole Stud M10

1SCM10

Fuse Block 1500VAC 1500VDC 800A 1-Pole Stud M10
Fuse Block 1500VAC 1500VDC 800A 1-Pole Stud 3/8 inch

1SC375

Fuse Block 1500VAC 1500VDC 800A 1-Pole Stud 3/8 inch
Fuse Block 1000VAC 1000VDC 400A 1-Pole Stud center to center: 4.66 inch

P266L

Fuse Block 1000VAC 1000VDC 400A 1-Pole Stud center to center: 4.66 inch
Fuse Block 1000VAC 1000VDC 400A 1-Pole Stud center to center: 4.06 inch

P266A

Fuse Block 1000VAC 1000VDC 400A 1-Pole Stud center to center: 4.06 inch
Fuse Block 1000VAC 1000VDC 200A 1-Pole Stud center to center: 2.88 inch

P243E

Fuse Block 1000VAC 1000VDC 200A 1-Pole Stud center to center: 2.88 inch

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.