Mersen GSC-V3/4 - Miniature fuse GSC-V - Time-Delay 250VAC 0.75A Size 5x20 Soldered connection
Mersen

GSC-V3/4

Alternate Item Number: GSC-V3/4

UPC: 782001765958

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Minimum Qty: 10

Multiplier: 10

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Overview

The **Mersen GSC-V3/4 miniature fuse** is a high-performance, time-delay fuse designed for precise circuit protection in industrial and commercial applications. Part of Mersen’s trusted GSC-V series, this fuse combines robust construction with industry-leading reliability, making it an ideal choice for engineers and technicians requiring dependable overcurrent protection. With a rated voltage of 250VAC and a current rating of 0.75A, the GSC-V3/4 is engineered to handle moderate inrush currents while providing fast response to fault conditions, ensuring optimal performance in sensitive electronic systems. **Key Features and Specifications:** The GSC-V3/4 miniature fuse features a **5x20mm glass/ceramic body**, offering exceptional thermal and mechanical stability. Its **time-delay (T) characteristic** allows it to withstand brief surges without nuisance tripping, making it suitable for applications with inductive loads such as motors, transformers, and power supplies. The **soldered axial leads** ensure secure electrical connections, reducing the risk of poor contact or intermittent failures in high-vibration environments. Mersen’s proprietary manufacturing processes guarantee consistent performance, with tight tolerances for both voltage and current ratings. **Typical Applications:** This fuse is widely used in **industrial control panels, power distribution systems, telecommunications equipment, and automotive electronics**, where compact size and reliable protection are critical. Common applications include: - **Motor starters and variable frequency drives (VFDs)** – Protects against overloads while allowing temporary inrush currents. - **Power supplies and converters** – Safeguards sensitive components from transient overcurrents. - **Lighting ballasts and LED drivers** – Ensures stable operation in lighting systems. - **Medical devices and test equipment** – Provides precise protection in low-power, high-reliability circuits. - **HVAC and refrigeration systems** – Guards against short circuits in compressors and control circuits. **Why Choose Mersen?** Mersen, a global leader in electrical protection solutions, has been delivering high-quality fuses and circuit protection devices for over a century. The GSC-V3/4 is manufactured to meet international standards, including **IEC 60127**, ensuring compliance with global safety and performance requirements. Professionals trust Mersen for its **consistent quality, extensive testing, and commitment to innovation**, making it a preferred supplier for mission-critical applications. **Installation and Selection Considerations:** When selecting the GSC-V3/4, engineers should consider the **maximum fault current** of the system, the **ambient operating temperature**, and the **type of load** (resistive, inductive, or capacitive). For optimal performance, install the fuse in a **well-ventilated fuse holder** to prevent overheating, and ensure the leads are properly soldered to avoid cold joints. Mersen provides **detailed datasheets and application notes** to assist in proper sizing and installation, reducing the risk of misapplication. **Long-Term Reliability and Cost Efficiency:** The GSC-V3/4’s **time-delay design** minimizes unnecessary fuse replacements, reducing downtime and maintenance costs. Its **compact 5x20mm form factor** allows for easy integration into space-constrained designs, while the **soldered connection** ensures long-term stability. Whether used in a **new design or as a replacement**, this fuse delivers **superior protection, durability, and peace of mind**—backed by Mersen’s reputation for excellence in electrical protection.
  • 250VAC rated voltage for high-performance protection
  • 0.75A current rating with time-delay (T) characteristic
  • 5x20mm glass/ceramic body for thermal and mechanical stability
  • Soldered axial leads for secure, vibration-resistant connections
  • IEC 60127 compliant for global safety standards

Specifications

AC Voltage Rating
250 V
Amperage Rating
0.75 A
Application
Electronic circuits
Brand Name
Mersen
Case
Glass / Ceramic
Class
Supplemental
Connection
Soldered connection
Connection Type
Soldered
Current Rating
0.75A
Material
Glass/Ceramic
Mounting
Surface
Series
GSC-V
Size
3.83 x 0.2 in
Size
97.282 x 5.08 mm
Size
5x20mm
Special Features
Glass / ceramic body Time-delay 5 mm x 20 mm 1-1/2" Axial leads
Standard
1/10A through 3A, 250VAC, UL Listed and CSA Certified 4A through 8A, 125VAC, UL Listed and CSA Certified 10A, 125VAC, UL and CSA Recognized
Type
5x20mm
Voltage Rating
250 VAC
Package Dimensions (L x W x H)
3.83 in x 0.2 in x 0.2 in
Package Dimensions (L x W x H)
97.282 mm x 5.08 mm x 5.08 mm
Package Weight (Imperial)
0.010 lb
Package Weight (Metric)
0.005 kg
Miniature fuse GGC-V - Fast-Acting 250VAC 0.75A Size 6,3x32 Soldered connection

GGC-V3/4

Miniature fuse GGC-V - Fast-Acting 250VAC 0.75A Size 6,3x32 Soldered connection
SLO-BLO GLASS AXIAL V-PACK 1A. The 3AG Slo-Blo® fuse solves a broad range of application requirements while offering reliable performance and costeffective circuit protection. Features: 313 and 315 series fuses have time-delayed in the overload range, which provides superior protection inductive loads such as motors, transformers, and solenoids. 3AG indicating fuses instantly identify themselves upon opening by showing a discoloration of their glass bodies. Guesswork and time-consuming circuit testing is eliminated. This unique design offers the same quality performance characteristics as the standard 3AG fuse design.

0313001.VXIDP

SLO-BLO GLASS AXIAL V-PACK 1A. The 3AG Slo-Blo® fuse solves a broad range of application requirements while offering reliable performance and costeffective circuit protection. Features: 313 and 315 series fuses have time-delayed in the overload range, which provides superior protection inductive loads such as motors, transformers, and solenoids. 3AG indicating fuses instantly identify themselves upon opening by showing a discoloration of their glass bodies. Guesswork and time-consuming circuit testing is eliminated. This unique design offers the same quality performance characteristics as the standard 3AG fuse design.

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.