You may also like
Mersen GDL-V Time-Delay Glass Fuse, 6x32mm, Axial Leads
The Mersen GDL-V Time-Delay Glass Fuse combines a compact 6x32mm (1/4" x 1-1/4") glass body with 1-1/2" axial leads for a soldered, direct in-circuit connection. This configuration is rated 125V, 15A with a time-delay speed characteristic, making it well suited for circuits that experience momentary inrush current without nuisance opening. The GDL-V - Time-Delay product line is UL Listed and CSA Certified and spans a broad range of amperage and voltage combinations, from 1/16A through 30A, giving specifiers a consistent, reliable fuse platform across multiple protection levels. The glass body allows for quick visual inspection of the fuse element, simplifying troubleshooting in control panels, equipment enclosures, and OEM assemblies.
Key Features
- Compact Body Size: 6x32mm (1/4" x 1-1/4") glass body for space-constrained fuse holders and clips.
- Axial Leads: 1-1/2" axial leads with a soldered connection terminal type for direct in-circuit mounting.
- Glass Body Construction: Glass insulating material provides clear visual inspection of the fuse element condition.
- Time-Delay Characteristic: Time-delay speed characteristic accommodates temporary inrush current while still protecting against sustained overcurrent conditions.
- Ampere Rating: Rated 15A for this configuration, part of the GDL-V family's broader 1/16A through 30A range.
- Voltage Rating: Rated 125V AC (UL) for this configuration.
- Product Line: GDL-V - Time-Delay, a recognized Mersen fuse platform for control and equipment protection circuits.
Certifications & Compliance
- UL Listed
- CSA Certified
- 10A through 15A, 125VAC ratings UL Listed and CSA Certified
Technical Specifications
- Product Line: GDL-V - Time-Delay
- Connection Terminal Type: Soldered connection
- Ampere Rating: 15 A
- Body Insulating Material: Glass
- Speed Characteristic: Time Delay
- Rated Voltage AC UL: 125 V
- Product Diameter: 0.25 in
- Country Of Origin: CN
Typical Applications
- Control Panel and Equipment Overcurrent Protection
- OEM Electronic and Electrical Assemblies
- Industrial Control Circuits with Inrush Current
- Instrumentation and Low-Voltage Power Circuits
- Replacement Fuse for GDL-V Series Time-Delay Applications
Why Mersen?
Mersen's GDL-V Time-Delay glass fuse is built with a soldered axial-lead connection and a UL Listed, CSA Certified time-delay design, giving electrical professionals a dependable, code-recognized option for overcurrent protection. The glass body construction supports quick visual verification, helping reduce downtime during maintenance and troubleshooting. With ratings spanning 1/16A through 30A across the GDL-V family, Mersen provides consistent, reliable performance for control and equipment protection applications.
Manufacturer Resources
Mersen Product Catalog
Product Specs
- list_batch:
- MERSEN-20260825
- Product Material:
- Glass
- Product Type:
- Time-Delay Fuse
- Connection Type:
- Soldered
- Voltage Rating:
- 125V
- Amperage Rating:
- 15A
- Listing:
- UL Listed
- Standards:
- CSA Certified
- Department:
- Electrical
- Product Group:
- Circuit Protection
- Product Subgroup:
- Fuses
Mersen GDL-V15 – Frequently Asked Questions
1) Will the Mersen GDL-V15 fuse fit a standard 1/4 x 1-1/4 inch fuse clip or holder?
The body is the standard 6x32mm (1/4 inch x 1-1/4 inch) size, with a product diameter of 0.25 in, so it matches common 1/4 x 1-1/4 fuse clips and holders. One caution: the GDL-V15 has 1-1/2 inch axial leads intended for a soldered connection, so it is built to be soldered directly into a circuit or board rather than dropped into a clip-style holder. If you need a plain cartridge for a holder, you want the version without leads.
2) What are the amp and voltage ratings on the Mersen GDL-V15?
15 amps at 125V AC per the UL rating. That matters two ways: you cannot use it to protect a circuit drawing more than 15A continuously, and you should not put it in a circuit operating above 125V. The wider GDL-V time-delay family runs 1/16A through 30A, so if 15A is the wrong size for your load, there is another rating in the same series.
3) My fuse keeps blowing on motor or transformer startup. Is a time-delay glass fuse like the GDL-V the fix?
That is exactly what the time-delay characteristic is for. The GDL-V opens on sustained overcurrent but rides through the momentary inrush you get from motor starts, transformer energizing, and capacitive loads, so it stops the nuisance openings a fast-acting fuse gives you on the same circuit. If your nuisance trips come from a genuine sustained overload instead of inrush, a time-delay fuse will not help, and you need to size up or find the fault.
4) Is the Mersen GDL-V15 UL Listed and CSA approved for use in control panels?
It is UL Listed and CSA Certified. Mersen states the 10A through 15A, 125VAC ratings in the GDL-V line carry both, and the 15A version sits in that band. For institutional and OEM work where the panel has to pass inspection, that is the recognition you are usually being asked to show.
5) My branch circuit needs a 40A time-delay fuse, not 15A. What should I use instead of the Mersen GDL-V?
The GDL-V family covers 1/16A through 30A, with the axial-lead version rated 15A at 125V AC, so it does not reach 40A. For a 40A time-delay fuse, the Littelfuse CCMR040 is a Class CC time-delay fuse rated 40A. Keep the GDL-V for low-current control and instrumentation circuits where the fuse is soldered into the board or assembly, and use the Class CC fuse where a rejection-style fuse block carries the larger load.
6) Can I tell if a GDL-V fuse is blown without pulling it out and testing it?
Usually yes. The body insulating material is glass, so you can see the element through it and spot a ruptured or vaporized link visually. That is the practical reason panel builders and maintenance techs specify glass over a ceramic or laminated-tube body, which hides the element. Note that a hairline break can still look intact, so a meter is the final word.
7) What is the exact part number to order for a 15A Mersen GDL-V glass fuse?
The manufacturer part number is GDL-V15, from the Mersen GDL-V Time-Delay product line. Country of origin is China. When you reorder, watch the suffix: the number after GDL-V is the ampere rating, so GDL-V15 is the 15A device and other ratings in the family carry their own suffix.
8) I need a time-delay fuse at a much higher amperage than 15A for a motor branch circuit. What else do you carry?
A 6x32mm glass fuse tops out well below motor branch-circuit duty, and the GDL-V15 is a 125V, 15A device. For a higher-rated time-delay fuse, look at the Littelfuse CCMR series Class CC time-delay fuse, offered at 40A. Class CC is the rejection-style midget fuse used in motor and control branch circuits, which is a different holder entirely from a 1/4 x 1-1/4 clip.
9) Can I substitute a fast-acting fuse if I cannot get the GDL-V time-delay?
Not as a like-for-like. The GDL-V is a time-delay device; a fast-acting fuse of the same amp rating will open on the inrush the time-delay version is there to ride through, and you will be back in the panel. Fast-acting parts such as the Littelfuse BLF series midget fast-acting fuse, rated 250V, are for circuits with no significant inrush where you want the quickest clearing. Match the speed characteristic, not just the amps.
10) Is the Littelfuse AGA5 a substitute for the Mersen GDL-V?
Only if the amperage and mounting match your circuit, and here they do not. The Littelfuse AGA5 is an AGA-series glass fuse rated 5A, while the Mersen GDL-V axial-lead configuration is rated 15A at 125V AC with a time-delay characteristic and a soldered connection terminal. A 5A fuse in a 15A circuit will open on normal load. The shared trait worth noting is the glass body on both, which lets you see the element and confirm a blown fuse by eye.
11) For protecting a utility meter's voltage inputs, should I order the Mersen GDL-V or the Square D PowerLogic fuse pack?
Use the metering fuse pack for that job. The Square D PowerLogic energy meter fuse pack is a set of three fuses rated 0.5A at 600V, sized for the voltage-sensing inputs of a meter. The Mersen GDL-V axial-lead fuse is rated 15A at 125V AC, which is far above a metering input's current and below the voltage class a 600V system requires. The GDL-V belongs in control panel, OEM assembly, and low-voltage power circuits where a soldered time-delay fuse is called for.
12) Where is the Mersen GDL-V glass fuse typically used?
Control panel and equipment overcurrent protection, OEM electronic and electrical assemblies, industrial control circuits that see inrush, and instrumentation and low-voltage power circuits. It is also the direct replacement when an existing GDL-V time-delay fuse in one of those assemblies has opened.
How fast can I get the Mersen GDL-V15 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Mersen GDL-V15 come with a warranty?
Absolutely. The Mersen GDL-V15 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Mersen GDL-V15?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Mersen GDL-V15 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.