Meet the Jandorf GMD 500A Time Delay Fuse — a purpose-built protector for electronic circuits that demand brief, controlled overload tolerance. This 2-pack from the GMD family blends robust construction with reliable response, so your gear stays safe without unnecessary interruptions.
Why this fuse stands out
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High current capacity: 500 amps of slow-blow protection ready to absorb startup surges and short transients common in power supplies and motor controllers.
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Precision at 250V: Rated for use in circuits up to 250 volts, providing dependable protection across a wide range of electronic applications.
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Durable construction: Glass tube cased with plated brass endcaps for reliable performance in real-world environments.
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Compact, standard size: 5 mm diameter by 20 mm length fits common fuse holders and compact assemblies without crowding your design.
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Two-pack, carded packaging: Ready-to-use replacements that ship together, making stocking easy for service or on-the-workbench needs.
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Certified safety: UL Listed and CSA Listed, giving you third-party confidence in quality and safety for your electrical systems.
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GMD sub-brand advantage: Part of the Jandorf GMD line, engineered for dependable time-delay protection in electronic circuits.
Where and how you’ll use it
Ideal for applications where inrush or brief overloads are expected but do not represent a sustained fault. Use in power supplies, control panels, lighting drivers, audio equipment, lab gear, and other electronic assemblies that require a measured, delayed response to surges. The time-delay (slow-blow) behavior helps prevent nuisance trips during startup, while still providing strong protection against overheating and insulation damage from sustained faults.
What sets it apart from typical fuses
Unlike fast-acting variants, the Jandorf GMD 500A Time Delay Fuse accommodates short-lived overcurrents. This means fewer interruptions during normal startup sequences and transient events, while still safeguarding sensitive components from damaging current spikes. With a glass tube design and brass endcaps, it’s built for precision, repeatability, and long service life in demanding environments.
Specs at a glance
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Amp rating: 500 A
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Voltage rating: 250 V
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Construction: Glass tube with plated brass endcaps
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Size: 5 x 20 mm
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Package: 2-pack, carded
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Certifications: UL Listed, CSA Listed
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Brand / Sub-brand: Jandorf / GMD
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Tamper proof: No
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Application: Time Delay fuse for electronic circuits
Keep a ready supply of the Jandorf GMD 500A Time Delay Fuses on hand for reliable protection that respects startup dynamics and boosts the longevity of your electronic assemblies. When precision, safety, and practical downtime reduction matter, this 2-pack delivers.
