Mersen STG6 - 250V Time-Delay Glass 4.5mm x 14.5mm 350 Volts 6 Amps STG series.
Mersen

STG6

Alternate Item Number: 782001245474

UPC: 782001245474

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Minimum Qty: 5

Multiplier: 5

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Overview

The Mersen STG6 (SKU: STG6) is a 6A, 350V time-delay glass fuse designed for industrial and electronic overcurrent protection. This fuse features a 4.5mm x 14.5mm glass body with time-delay functionality, allowing it to withstand temporary inrush currents common in motor starts or inductive loads while providing rapid interruption for sustained overloads and short circuits. With a 350VAC rating and 6A current capacity, the STG6 is ideal for applications requiring reliable circuit protection in compact enclosures. Its UL Listed and CSA Certified ratings (1/4A through 7A, 350VAC) ensure compliance with U.S. and Canadian safety standards. The STG series is widely used in industrial control systems, power supplies, telecommunications infrastructure, medical devices, and general-purpose circuit protection where precise and dependable interruption is critical. The glass construction also provides visual indication of fuse status, simplifying maintenance and troubleshooting. Manufactured in the U.S., the STG6 combines Mersen’s trusted quality with compact dimensions for seamless integration into densely populated control panels and electronic assemblies.
  • 6A, 350V time-delay glass fuse with 4.5mm x 14.5mm dimensions
  • UL Listed and CSA Certified for 1/4A–7A, 350VAC ratings
  • Time-delay functionality prevents nuisance tripping from inrush currents
  • Glass body provides visual indication of fuse status
  • Ideal for industrial control systems, power supplies, and medical devices

Specifications

Amperage Rating
6 A
Application
Electronic circuits
Brand Name
Ferraz Shawmut
Connection
Ferrule
Current Rating
6 A
Interrupt Rating
0.1 kA
Material
Glass
Mounting
Clip
Series
STG
Size
4.5mm x 14.5mm
Size
4.5x14.5 mm
Special Features
Glass Body Fasting Acting 4.5 x 14.5mm 2AG SMG-V fuses have 1-1/2" wire lead each end.
Standard
1/10A & 3/8A, 250VAC UL Listed CSA Cert., 1/8A - 7A, 350VAC, UL/CSA Recognized 8A & 10A, 125VAC RoHS Compliant
Type
4.5 X 14.5 mm miniature fuses
Voltage Rating
350 VAC
Package Dimensions (L x W x H)
0.54 IN x 0.217 IN x 0.217 IN
Package Dimensions (L x W x H)
13.716 mm x 5.5118 mm x 5.5118 mm
Package Weight (Imperial)
0.010 L
Package Weight (Metric)
0.005 kg
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POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

LCC5

POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.
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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.