Mersen GGM Series Fast-Acting ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$318.57
Mersen GGM Series Fast-Acting Miniature Glass Fuse, 5x20mm Ferrule Terminal

Mersen GGM Series Fast-Acting Miniature Glass Fuse, 5x20mm Ferrule Terminal

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Model: GGM1/10

In Stock (leaves warehouse same day if ordered before 3pm ET)

$318.57
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Mersen GGM Series Fast-Acting Miniature Glass Fuse, 5x20mm Ferrule Terminal

The Mersen GGM Series Fast-Acting Miniature Glass Fuse delivers precise supplemental overcurrent protection for sensitive electronic circuits in a compact 5x20mm glass body, rated up to 250VAC. Designed with ferrule terminals for secure clip-mount installation, this fast-acting fuse quickly interrupts fault currents to protect downstream components from damage. RoHS compliant construction makes it well suited for professional electronic, instrumentation, and industrial control applications requiring reliable, code-compliant circuit protection in a space-efficient package. The GGM Series is available across a range of current ratings to match specific circuit protection requirements.

Key Features

  • 5x20mm Compact Size: Space-efficient 5x20mm fuse body fits standard miniature fuse holders and clips.
  • Fast-Acting Response: Fast-acting speed characteristic quickly interrupts fault currents to protect downstream components from damage.
  • Glass Body Construction: Glass insulating material offers visual indication of fuse status and reliable insulation properties.
  • Ferrule Terminal Design: Ferrule connection terminal type ensures secure electrical connections in clip-mount applications.
  • Voltage Rating: Rated up to 250VAC for standard AC voltage applications with reliable interruption capability.
  • Supplemental Fuse Class: Supplemental class rating suits precision protection in electronic and instrumentation applications.
  • Clip Mounting Method: Installs securely in standard clip-mount fuse holders for straightforward replacement.

Certifications & Compliance

  • RoHS Compliant

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications, including current rating options for this series.

Typical Applications

  • Electronic Control Circuits
  • Instrumentation Protection
  • Power Supply Applications
  • Telecommunications Equipment
  • Industrial Control Systems
  • Laboratory Equipment

Why Mersen?

Mersen delivers professional-grade fuse protection with glass body construction for clear visual status indication and RoHS compliant materials for environmental responsibility. The supplemental class rating and fast-acting speed characteristic of the GGM Series provide dependable overcurrent protection for critical electronic applications where precise, code-compliant performance matters.

Manufacturer Resources

Product Specs

Product Type:
Fuse
Product Material:
Glass
Connection Type:
Ferrule
Standards:
RoHS
Department:
Electrical
Product Group:
Wiring Devices

Mersen GGM1/10 – Frequently Asked Questions

1) What amp ratings does the Mersen GGM glass fuse come in?
The GGM Series runs from fractional to 15A: 1/10A (GGM1/10), 1/2A (GGM1/2), 8/10A (GGM8/10), 1A (GGM1), 1-1/2A (GGM1-1/2), 2A, 2-1/2A, 3A, 3-1/2A, 4A, 5A, 6A, 7A, 8A, 10A and 15A. The part number carries the rating, so GGM5 is the 5 amp version.
2) Can I use a GGM fuse on a 120V or 240V control circuit?
Both are within range. The GGM Series is rated up to 250VAC, which covers 120V and 240V control, instrumentation and power supply circuits. Do not use it above 250VAC.
3) Is the GGM a fast-acting or time-delay fuse, and does that matter for motor loads?
It is fast-acting. That is what you want for electronics, instrumentation and power supplies, where a fault needs clearing before downstream components cook. It is the wrong choice for inductive inrush like motors or transformers, which will nuisance-blow it. For a motor branch circuit, a time-delay fuse such as the Littelfuse CCMR Series Class CC is the correct type.
4) Can a GGM fuse be used as branch circuit protection in a panel?
No. The GGM carries a supplemental fuse class rating, which means it protects a device or circuit downstream of an already-protected branch circuit. It cannot serve as the branch circuit overcurrent device. For branch circuit duty you need a branch-rated fuse, for example a Class CC type like the Littelfuse CCMR Series.
5) What is the closest equivalent to a Mersen GGM5 glass fuse from another brand?
The Mersen GGM5 is a 5A fast-acting glass fuse in a 5x20mm body with ferrule terminals. The nearest single-brand counterpart in the same 5A glass-bodied format is the Littelfuse AGA5 in the AGA Series. Both are glass-bodied 5A cartridge fuses for supplemental protection. Before swapping, confirm the fuse holder clip spacing matches, since the GGM body is the 5x20mm metric size and the AGA series is a separate dimensional family - a glass fuse of the same amperage will not seat in a holder cut for a different length.
6) My circuit trips the Mersen GGM on motor inrush - what should I use instead?
The GGM Series is fast-acting, which is what makes it suited to electronic and instrumentation loads but also what makes it open on the inrush surge of a motor or transformer. For a motor branch circuit, move to a time-delay fuse such as the Littelfuse CCMR040, a Class CC time-delay fuse rated 40A, which is designed to ride through starting current. That is a different fuse class and holder entirely, not a drop-in, so size it to the motor nameplate and fit a Class CC fuse block. Stay with the GGM where the load is a control board, power supply, or instrument.
7) For a 0.5A metering circuit, is the Square D PowerLogic fuse pack an alternative to the Mersen GGM1/2?
They serve different voltage classes. The Mersen GGM1/2 is the 0.5A rating of the GGM Series, a 5x20mm glass fuse rated to 250VAC for electronic and instrumentation protection. The Square D PowerLogic Energy Meter Fuse Pack is a set of three 0.5A fuses rated 600V, supplied as a matched set for metering potential leads on a PowerLogic energy meter. If you are fusing the PT leads on a 480V or 600V metering installation, the 600V PowerLogic pack is the correct rating; the GGM1/2 suits 250VAC electronic circuits.
8) How does the Littelfuse AGU glass tube fuse differ from the Mersen GGM?
Both are glass-tube fuses, so both give you the visual element check that a ceramic body cannot. The Littelfuse AGU is an AG-series glass tube fuse supplied boxed, in the inch-dimensioned AG family commonly seen in automotive and audio power runs. The Mersen GGM is the metric 5x20mm body with ferrule terminals, rated to 250VAC and classed as a supplemental fuse for electronic and industrial control circuits. Match the fuse to the holder dimension already in the equipment rather than to amperage alone.
9) Can I tell if a GGM fuse is blown without pulling it out?
Usually yes. The body is glass, so you can see the element through it, and a cleanly opened fuse shows a broken filament. A hard short often leaves the glass blackened inside, which also reads as blown. A laminated or fiber tube fuse like the Littelfuse BLF Series gives no visual indication and has to be tested with a meter.
10) Are Mersen GGM fuses RoHS compliant for equipment we export?
Yes, GGM Series fuses are built to RoHS compliant construction, which matters if the assembly they go into ships into markets enforcing RoHS.
11) What should I stock for MRO on instrumentation and control cabinets?
For 5x20mm holders, the common spares are the low fractional values that protect transmitters and power supplies (1/2A, 8/10A, 1A, 2A) plus a few mid values like 3A and 5A. The GGM Series covers 1/10A to 15A in one part number family, so a single series standardizes the drawer across control panels, lab equipment and telecom gear.
12) I need a lower-cost simpler fuse for a bench power supply - do I need the Mersen GGM or will a plain glass fuse do?
For a bench supply or lab instrument the GGM Series is the straightforward choice: it is a supplemental-class, fast-acting 5x20mm glass fuse, RoHS compliant, and stocked from 0.1A up through 15A so you can match the rating exactly. If the holder in your equipment is an inch-dimensioned AG clip rather than 5x20mm, a glass fuse from that family such as the Littelfuse AGU is the fit instead. The deciding factor is holder dimension, not feature set - both are glass-bodied fuses with a visible element.
How fast can I get the Mersen GGM1/10 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 GGM1/10 come with a warranty?
Absolutely. The Mersen GGM1/10 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 GGM1/10?
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
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