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Mersen GW30 - Mersen plug fuses are intended for industrial and residential applications. Non time-delay fuses are available for receptacle and lighting circuits and time-delay fuses for motor loads. For Canadian requirements, a type P fuse is used for non-motor loads and Type D, for electrical heating and cyclical load circuits. Both fuses have low melting-point temperature elements. Type S plug fuses are time-delay and tamper resistant. 125 Volts 15 Amps GP series. 125 Volts 30 Amps GW series.

Mersen GW30 Mersen plug fuses are intended for industrial and residential applications. Non…

Alternate Item Number: 068938793364

UPC: 068938793364

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Specification Sheet

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Overview

The Mersen GW30 (SKU: GW30) is a 125 Volt, 30 Amp plug fuse engineered for reliable overcurrent protection in both industrial and residential applications. This fuse is part of Mersen's GW series, featuring a low melting-point temperature element for rapid response to fault conditions. It is suitable for motor loads, electrical heating, and cyclical load circuits. For Canadian applications, it functions as a Type D fuse for electrical heating and cyclical load circuits, adhering to specific electrical code requirements for low melting-point elements. The GW30 offers a 10kA interrupting rating at 125VAC. Mersen plug fuses are available with an Edison base or can be utilized with Type S adaptors (e.g., SAG3-2/10, SAG6-1/4, SAG15, SAG20, SAG30) for tamper-resistant installations, preventing the use of incorrect ampere size fuses. Rejector rings (FR15) and removal tools (FRW) are also available. Mersen plug fuses are CSA Certified (File 15525, Class 142301). This fuse serves as a direct replacement for standard non-time delay fuses in receptacle and lighting circuits, and time-delay fuses for motor loads. The GW series is specifically rated for 125 Volts and 30 Amps, differentiating it from other series like the GP series (125 Volts, 15 Amps).
  • 125 Volts, 30 Amps rating
  • 10kA interrupting rating at 125VAC
  • Low melting-point temperature element for rapid response
  • Suitable for motor loads, electrical heating, and cyclical load circuits
  • CSA Certified (File 15525, Class 142301)

Specifications

Amperage Rating
30 A
Application
Industrial and residential;Receptacle and lighting circuits
Brand Name
Ferraz Shawmut
Class
Plug
Connection
Screw In
Current Rating
30 A
Family Code
145
Family Description
Plug Fuse W
Interrupt Rating
10 kA
Material
Screw In
Mounting
Screw In
Response Time
Fast-Acting
Series
GW
Size
1.126 x 1.29 Inches
Special Features
Available in both time-delay and non time-delay;For Canadian market, available in Type "P" and Type "D"
Standard
CSA;UL
Standard
UL Listed to Standard 248-11, File E76208; CSA Certified, Class 142301, File 15525
Type
Plug Fuse
Voltage Rating
125 VAC
Voltage Rating
125 V
Package Dimensions (L x W x H)
1.29 IN x 1.126 IN x 1.126 IN
Package Dimensions (L x W x H)
3.2766 cm x 2.86 cm x 2.86 cm
Package Weight (Imperial)
0.060 L
Package Weight (Metric)
0.027 kg
Fuse GP - Plug - Fast-Acting 125VAC 30A Screw Visual Indicator

GP30

Fuse GP - Plug - Fast-Acting 125VAC 30A Screw Visual Indicator
The National Electric Code now permits Edison-base fuses to be used only for replacements in existing installations, and then, only when there is no evidence of overfusing or tampering. All new Edison-based fuseholders must have Type S fuse adapters installed before they are placed in service. Designed to prevent installation of wrong size fuses, Type S Adapters (SAO series) screw into Edison-base fuseholders so they may accept Type S fuses. Once installed the adapters cannot be removed. To prevent shunting of open fuses or overfusing, and to reduce nuisance fuse opening, it is recommended that SAO adapters with properly rated SLO or SOO series fuses be installed in all Edison-base fuseholders.

SAO1.25

The National Electric Code now permits Edison-base fuses to be used only for replacements in existing installations, and then, only when there is no evidence of overfusing or tampering. All new Edison-based fuseholders must have Type S fuse adapters installed before they are placed in service. Designed to prevent installation of wrong size fuses, Type S Adapters (SAO series) screw into Edison-base fuseholders so they may accept Type S fuses. Once installed the adapters cannot be removed. To prevent shunting of open fuses or overfusing, and to reduce nuisance fuse opening, it is recommended that SAO adapters with properly rated SLO or SOO series fuses be installed in all Edison-base fuseholders.
Mersen plug fuses are intended for industrial and residential applications. Non time-delay fuses are available for receptacle and lighting circuits and time-delay fuses for motor loads. For Canadian requirements, a type P fuse is used for non-motor loads and Type D, for electrical heating and cyclical load circuits. Both fuses have low melting-point temperature elements. Type S plug fuses are time-delay and tamper resistant. 125 Volts 15 Amps GP series. 125 Volts 6 Amps GW series.

GW6

Mersen plug fuses are intended for industrial and residential applications. Non time-delay fuses are available for receptacle and lighting circuits and time-delay fuses for motor loads. For Canadian requirements, a type P fuse is used for non-motor loads and Type D, for electrical heating and cyclical load circuits. Both fuses have low melting-point temperature elements. Type S plug fuses are time-delay and tamper resistant. 125 Volts 15 Amps GP series. 125 Volts 6 Amps GW series.
Mersen plug fuses are intended for industrial and residential applications. Non time-delay fuses are available for receptacle and lighting circuits and time-delay fuses for motor loads. For Canadian requirements, a type P fuse is used for non-motor loads and Type D, for electrical heating and cyclical load circuits. Both fuses have low melting-point temperature elements. Type S plug fuses are time-delay and tamper resistant. 125 Volts 15 Amps GP series. 125 Volts 10 Amps GW series.

GW10

Mersen plug fuses are intended for industrial and residential applications. Non time-delay fuses are available for receptacle and lighting circuits and time-delay fuses for motor loads. For Canadian requirements, a type P fuse is used for non-motor loads and Type D, for electrical heating and cyclical load circuits. Both fuses have low melting-point temperature elements. Type S plug fuses are time-delay and tamper resistant. 125 Volts 15 Amps GP series. 125 Volts 10 Amps GW series.
Mersen plug fuses are intended for industrial and residential applications. Non time-delay fuses are available for receptacle and lighting circuits and time-delay fuses for motor loads. For Canadian requirements, a type P fuse is used for non-motor loads and Type D, for electrical heating and cyclical load circuits. Both fuses have low melting-point temperature elements. Type S plug fuses are time-delay and tamper resistant. 125 Volts 15 Amps GP series. 125 Volts 15 Amps GW series.

GW15

Mersen plug fuses are intended for industrial and residential applications. Non time-delay fuses are available for receptacle and lighting circuits and time-delay fuses for motor loads. For Canadian requirements, a type P fuse is used for non-motor loads and Type D, for electrical heating and cyclical load circuits. Both fuses have low melting-point temperature elements. Type S plug fuses are time-delay and tamper resistant. 125 Volts 15 Amps GP series. 125 Volts 15 Amps GW series.
Mersen plug fuses are intended for industrial and residential applications. Non time-delay fuses are available for receptacle and lighting circuits and time-delay fuses for motor loads. For Canadian requirements, a type P fuse is used for non-motor loads and Type D, for electrical heating and cyclical load circuits. Both fuses have low melting-point temperature elements. Type S plug fuses are time-delay and tamper resistant. 125 Volts 15 Amps GP series. 125 Volts 30 Amps GTL series.

GTL30

Mersen plug fuses are intended for industrial and residential applications. Non time-delay fuses are available for receptacle and lighting circuits and time-delay fuses for motor loads. For Canadian requirements, a type P fuse is used for non-motor loads and Type D, for electrical heating and cyclical load circuits. Both fuses have low melting-point temperature elements. Type S plug fuses are time-delay and tamper resistant. 125 Volts 15 Amps GP series. 125 Volts 30 Amps GTL series.
Mersen plug fuses are intended for industrial and residential applications. Non time-delay fuses are available for receptacle and lighting circuits and time-delay fuses for motor loads. For Canadian requirements, a type P fuse is used for non-motor loads and Type D, for electrical heating and cyclical load circuits. Both fuses have low melting-point temperature elements. Type S plug fuses are time-delay and tamper resistant. 125 Volts 15 Amps GP series. 125 Volts 3 Amps GW series.

GW3

Mersen plug fuses are intended for industrial and residential applications. Non time-delay fuses are available for receptacle and lighting circuits and time-delay fuses for motor loads. For Canadian requirements, a type P fuse is used for non-motor loads and Type D, for electrical heating and cyclical load circuits. Both fuses have low melting-point temperature elements. Type S plug fuses are time-delay and tamper resistant. 125 Volts 15 Amps GP series. 125 Volts 3 Amps GW series.
Mersen plug fuses are intended for industrial and residential applications. Non time-delay fuses are available for receptacle and lighting circuits and time-delay fuses for motor loads. For Canadian requirements, a type &quot,P&quot, fuse is used for non-motor loads and Type &quot,D&quot, for electrical heating and cyclical load circuits. Both fuses have low melting-point temperature elements. Type &quot,S&quot, plug fuses are time-delay and tamper resistant. 1500 Volts 3.2 Amps SAG series.

SAG3-2/10

Mersen plug fuses are intended for industrial and residential applications. Non time-delay fuses are available for receptacle and lighting circuits and time-delay fuses for motor loads. For Canadian requirements, a type &quot,P&quot, fuse is used for non-motor loads and Type &quot,D&quot, for electrical heating and cyclical load circuits. Both fuses have low melting-point temperature elements. Type &quot,S&quot, plug fuses are time-delay and tamper resistant. 1500 Volts 3.2 Amps SAG series.

Frequently Asked Questions

What voltage and amperage ratings are available for Mersen Plug Fuses?

Mersen Plug Fuses have a voltage rating of 125VAC and are available in amperage ratings from 3A to 30A.

What is the interrupting rating (IR) for these plug fuses?

The interrupting rating (IR) for these plug fuses is 10kA AC.

What is the purpose of Type S plug fuse adaptors?

Type S adaptors screw into Edison bases and prevent the installation of the wrong ampere size fuse.

What is required to fit a Type S fuse into an Edison base fuse holder?

A Type S fuse must be used with an SAG adaptor to fit an Edison base fuse holder.

What are standard non-time delay fuses used for?

Standard non-time delay fuses are designed for use in receptacle and lighting circuits.

What are standard time delay fuses used for?

Standard time delay fuses are suitable for motor loads.

What are Low-Temp time delay plug fuses used for?

Low-Temp time delay plug fuses are for cycling loads and motor circuits due to their thermal sensitivity.

Are Type S plug fuses tamper-resistant?

Yes, Type S plug fuses are time delay and tamper-resistant.

What are the UL and CSA approval details for these fuses?

They are UL Listed Guide JEFV, File E76208 and CSA Certified Class 142301, File 15525.

What is the function of FR15 Rejector Rings?

FR15 Rejector Rings are available for use with these fuses.

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.