
Mersen GSL30 Mersen plug fuses are intended for industrial and residential applications. Non…
Alternate Item Number: 782001794071
UPC: 782001794071
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Overview
- 125 Volts, 30 Amps, Time-Delay Plug Fuse
- Ideal for industrial and residential motor loads
- Meets Canadian Type D (heating/cyclical) and Type P (non-motor) requirements
- UL/CSA listed for reliable overcurrent protection
- Features low melting-point temperature element for precise response
Specifications
Amperage Rating | 30 A |
Application | Industrial and residential;Receptacle and lighting circuits |
Brand Name | Ferraz Shawmut |
Class | Plug |
Connection | Screw In |
Connection Type | Edison-base |
Current Rating | 30 A |
Family Code | 145 |
Family Description | Plug Fuse W |
Interrupt Rating | 10 kA |
Material | Screw In |
Mounting | Screw In |
Mounting Type | Plug-in |
Response Time | Time-Delay |
Series | GSL |
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 |

GTL25
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 25 Amps GTL series.
TOO012
Littelfuse Plug fuses provide overcurrent protection to general purpose circuits and small motor loads. Edison-base Plug fuses (TOO and TLO series) feature metal threads similar to incandescent lamp bases. Type S Plug fuses (SOO and SLO series) utilize a nonmetallic threaded base and must be used with Type S adapters (SAO series). The National Electrical Code permits Edison base Plug fuses to be used for replacement purposes only. Type S fuses and adapters prevent shunting open fuses and over-fusing.
GSL20
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 20 Amps GSL series.
G3
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. 1500 Volts 3 Amps G series.
G6
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. 1500 Volts 6 Amps G series.Frequently Asked Questions
What voltage and amperage ratings are available for Mersen Plug Fuses?
Mersen Plug Fuses are rated for 125VAC and are available in amperage ratings from 3 to 30A.
What is the interrupting rating (IR) for these fuses?
The interrupting rating (IR) for these fuses is 10kA AC.
What is the purpose of Type 'S' plug fuses and adaptors?
Type 'S' plug fuses are time delay and tamper-resistant. Type S adaptors prevent the wrong ampere size fuse from being used.
Are Type S fuses compatible with standard Edison base fuse holders?
No, Type S fuses 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 intended for use with motor loads.
What are Type 'P' and Type 'D' fuses used for in Canadian requirements?
For Canadian requirements, Type 'P' fuses are for non-motor loads, and Type 'D' fuses are for electric heating and cycling loads.
What are Low-Temp time delay plug fuses suitable for?
Low-Temp time delay plug fuses, with their thermal sensitivity, are suitable for cycling loads and motor circuits.
What UL and CSA certifications do these fuses have?
These fuses are UL Listed under Guide JEFV, File E76208, and CSA Certified under File 15525, Class 142301.
What is the function of FR15 Rejector Rings and FRW Rejection removal tools?
FR15 Rejector Rings are available, and an FRW Rejection removal tool can be used to remove them.
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.


