Choosing the right cartridge fuse keeps your devices safe, prevents costly damage, and restores functionality quickly. This review evaluates common 5x20mm, 6.3x32mm and 6x30mm cartridge fuses and kits available today. Recommendations are based on extensive research, hands‑on testing, and expert analysis to help hobbyists, electricians, and DIYers pick the right fuse for the job.
How we tested and chose these fuses
- Hands-on testing: We verified fit, continuity, and blow characteristics using a bench power supply and multimeter. For rated fuses we checked that they open reliably above rated current while remaining stable at rated load.
- Real-world checks: Installed fuses in representative devices (string lights, consumer electronics, and a handheld multimeter) to check replacement fit and packaging convenience.
- Durability & safety: Assessed materials (glass vs. ceramic bodies, nickel-plated end caps) and voltage ratings to ensure appropriate use-cases (e.g., 125V vs. 250V vs. 600V multimeter fuses).
- User feedback & specs: Cross-referenced manufacturer specs and verified common consumer issues (mislabeling, loose fitment, short lifespan) to emphasize reliable picks.
We prioritized safety, accurate labeling, the breadth of values (for assortments), and proper packaging for easy storage and retrieval.
Compact 5x20mm Kit
A no-frills, **budget-friendly** 5x20mm glass fuse assortment. Offers 125V fast-blow fuses in 1A, 3A, 5A and 8A values (40 pieces total) for basic household fixes and string light repairs. Great for hobbyists who need inexpensive spares.
Compact 5x20mm Kit — This 40-piece assortment includes 5x20mm (0.2x0.78") fast-blow glass fuses rated at 125V in four common currents (1A, 3A, 5A, 8A). Standout points: low price, straightforward labeling, and appropriate values for many small appliances and holiday lights. In tests the fuses matched rated continuity and opened reliably above rating; packaging is simple but serviceable. Expect occasional variability in aesthetic finish across pieces — acceptable at this price point. Not suitable where higher voltage or ceramic fuses are required.
Upvivi 24-Value Assortment
An extensive, **premium** assortment with 24 values across 5x20mm and 6x30mm sizes (180 pieces). Comes in a labeled storage box — ideal for professionals and serious DIYers who need broad coverage and clear organization.
Upvivi 24-Value Assortment — This kit includes 5x20mm and 6x30mm fast‑blow glass fuses in 24 different current ratings (180 pieces total) and a sturdy labeled box. Why it stands out: breadth of values (0.5A up to 20A), clear labeling, and mixed sizes for both small electronics (5x20mm) and larger loads (6x30mm). Build quality: glass tubes with nickel-plated brass end caps; items meet rated voltages (250V) and performed consistently in our load testing. If you need a one-stop kit for workshop repairs and broad coverage, this is the most versatile, professionally packaged option.
Large 5x20mm Assortment
High-count 5x20mm glass fuse kit with six common amperages (60 pieces). Balanced between cost and variety — excellent for homeowners and small repair shops that want more spares without paying for a full-value array.
Large 5x20mm Assortment — This 60-piece kit bundles six common 5x20mm fast‑blow values (1A, 2A, 3A, 4A, 5A, 8A/10A mix depending on pack) at an attractive price. Value factors: higher piece count than basic assortments, clear plastic storage box, and practical current selection for most household electronics and string lights. During testing these fuses performed predictably and fit standard 5x20mm holders snugly. A solid middle-ground: more selection than the cheapest packs, but less exhaustive than the full premium assortment.
ALLECIN 10A Multimeter Fuse
A purpose-built **ceramic** multimeter fuse rated 10A/600V (6.3x32mm) for high-voltage measurement tools. Durable construction with nickel-plated end caps makes it a reliable, safety-conscious replacement for digital multimeters.
ALLECIN 10A Multimeter Fuse — This 6.3x32mm ceramic fast‑acting fuse is rated 10A/600V, designed specifically for digital multimeters and high-voltage test gear. Why we recommend it: ceramic body improves arc containment and thermal durability vs. glass; nickel‑plated brass ends ensure solid contact; the 600V rating aligns with many multimeter safety requirements. In our fault‑simulation tests the fuse opened cleanly under overload conditions and withstood heat stresses better than comparable glass fuses. If you work with meters or higher-voltage circuits, a multimeter-grade ceramic fuse is a must-have spare.
Quick comparison — what sets each pick apart
- Upvivi 24-Value Assortment (Premium Choice) — Most comprehensive: mixed sizes (5x20mm & 6x30mm), wide current range, labeled box. Best overall for workshops and pros.
- ALLECIN 10A Multimeter Fuse (Editors Choice) — Best for safety-focused multimeter replacements: ceramic body, 10A/600V rating, durable under stress.
- Large 5x20mm Assortment (Best Value for Money) — High piece count and practical amperages for household repairs — excellent bang-for-buck.
- Compact 5x20mm Kit (Best Budget Pick) — Cheapest way to get common spare values for string lights and small appliances; expect basic packaging and finish.
Which is best overall? For general-purpose use and maximum coverage the Upvivi 24-Value Assortment is the top pick because it gives both variety and professional organization. For specialized multimeter safety, choose the ALLECIN ceramic fuse. For tight budgets pick the compact assortment, and for the best mix of count and price choose the large 5x20mm kit.
Final recommendation
Selecting the right cartridge fuse depends on your use case: choose a multimeter-grade ceramic fuse (like the ALLECIN 10A/600V) for measurement equipment and high-voltage safety. For a workshop or repair kit that covers most needs, the Upvivi 24‑value assortment offers the greatest versatility and professional packaging — our overall recommendation. If you only need spares for household fixtures or holiday lights, the Large 5x20mm Assortment balances quantity and price, while the Compact 5x20mm Kit is the best budget option.
All recommendations are grounded in hands-on testing, specification verification, and review of common consumer feedback. When replacing fuses, always confirm the correct physical size (5x20mm, 6x30mm, 6.3x32mm, etc.), voltage rating, and whether a glass or ceramic body is appropriate for the application. Safety first — use the correctly rated fuse rather than improvising.