Mersen 1SC375-1 - Fuse Block 1500VAC 1500VDC 800A 1-Pole 3/8" stud no washer
Mersen

1SC375-1

Alternate Item Number: 1SC375-1

UPC: 782001463267


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Overview

The Mersen 1SC375-1 is a single-pole semiconductor fuse block engineered for high-voltage DC and AC applications up to 1500V. With a robust 800A current rating, this fuse block is designed to protect power semiconductors. It features a 3/8" stud terminal for secure connections and includes necessary mounting hardware. The modular, two-piece design of the 1SC375-1 offers adaptability for various semiconductor fuse lengths, ensuring broad compatibility. Constructed with durable phenolic insulators, it provides reliable performance in industrial settings. This Mersen fuse block is UL Recognized Component (File E52283) and supports high short-circuit current ratings (SCCR) of 100kA at 1500V. Manufactured in the US, the 1SC375-1 is ideal for applications requiring blade-style fuse protection. Its compact footprint optimizes panel space, making it an efficient choice for power electronic systems. The 1SC375-1 is specifically designed for 1500VAC and 1500VDC operation. The fuse block utilizes a 3/8" stud terminal, and no washer is included with the unit. SKU: 1SC375-1.
  • 1500VDC/VAC maximum voltage rating
  • 800A maximum current rating
  • Single-pole configuration
  • 3/8" stud terminal
  • Modular two-piece design for fuse length flexibility
  • Rugged phenolic insulators
  • UL Recognized Component File E52283
  • 100kA SCCR at 1500V
  • Includes mounting hardware
  • Manufactured in the US

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
3/8" Stud
Connection Type
3/8" stud no washer
Current Rating
800A
DC Voltage Rating
1500 V
Material
Thermoplastic
Material
Phenolic
Mounting
Screw
Mounting Type
Modular two-piece design
Mounting Type
Modular mounting
Mounting Type
Modular
Number of Poles
1
Operating Temperature, Maximum
176 F
Operating Temperature, Maximum
80 °C
Poles
1-pole
Series
1SC
Size
2.12 x 3.82 x 1;53.848 x 97.028 x 25.4 in;mm
Size
3/8" Stud
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
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
Fuse Block 1500VAC 1500VDC 800A 1-Pole Stud M10

1SCM10

Fuse Block 1500VAC 1500VDC 800A 1-Pole Stud M10
Littelfuse LSCR Series is a comprehensive line of modular fuse blocks, designed to accommodate a wide range of High-Speed and UL Power Fuses. These LSCR Series blocks have modular stud type design that enables easy mounting in panel boards. LSCR Series blocks are CE Certified and RoHS Compliant. Features and Benefits: Modular design reduces inventory requirements; Sold in pairs for convenience; Supplied with nut and belleville washer; Constructed of molded phenolic (with plated steel studs) provide greater heat dissapation.

LSCR102

Littelfuse LSCR Series is a comprehensive line of modular fuse blocks, designed to accommodate a wide range of High-Speed and UL Power Fuses. These LSCR Series blocks have modular stud type design that enables easy mounting in panel boards. LSCR Series blocks are CE Certified and RoHS Compliant. Features and Benefits: Modular design reduces inventory requirements; Sold in pairs for convenience; Supplied with nut and belleville washer; Constructed of molded phenolic (with plated steel studs) provide greater heat dissapation.
DR4/8 SF DIN2

1SNA110368R1200

DR4/8 SF DIN2

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.