5-Pack 20 amp Microwave Fuse 20a 250v
4.5Editor score
5-pack value bundle
Universal fit design
Heavy-duty ceramic tube
In this guide
When your microwave stops working, a blown fuse is often the culprit. Finding the right 20A 250V ceramic fuse ensures safety and restores functionality quickly. These components protect against surges and overloads effectively.
We evaluated ten highly rated options based on build quality, compatibility, and user feedback. Each selection offers slow-blow protection designed for modern kitchen appliances. Our comparisons highlight key specs and real-world performance data.
Each pick includes detailed pros, cons, and installation tips. Prices and availability fluctuate, so check current listings before buying. This guide helps you choose the safest and most reliable fuse for your specific model.
Top 3 Picks for Best 20A 250V Ceramic Fuses for Microwave Ovens
BOJACK Microwave Fuse 20a Ceramic Fuse 20 Amp 250V Slow-Blow
4.6Editor score
6x30mm dimensions
Slow-blow protection
GE WB27X10388 compat
BlueStars Upgraded 5-Pack WB27X10388 20A 20 Amp 250V Ceramic Microwave Fuse
4.5Editor score
High-purity quartz sand
Wear-resistant end caps
Lifetime protection warranty
Top 10 Best 20A 250V Ceramic Fuses for Microwave Ovens in 2026 Compared
This side-by-side comparison highlights key specifications and ratings across all ten selected products. Evaluate dimensions, compatibility, and build quality to find the perfect match for your microwave oven repair needs.
ProductsSpecificationsEditor scorePrice
Editor's Choice
BOJACK Microwave Fuse 20a Ceramic Fuse 20 Amp 250V Slow-Blow
6x30mm dimensions
20 Amp rating
250V voltage
Slow-blow type
4.6Editor score
Editor's Choice
Frienda 20 Pcs Microwave Fuse, 20a 250v Slow-Blow Ceramic
20 piece pack
6.35x30mm size
Surge resistance
Quartz sand filled
4.7Editor score
Best Premium
HiQltyla 20A 250V Microwave Fuse, 6x30mm Slow-Blow Ceramic Cartridge, 2Pcs
2 piece pack
CSA safety certified
Arc prevention design
Universal replacement
BlueStars Upgraded 5-Pack WB27X10388 20A 20 Amp 250V Ceramic Microwave Fuse
5 piece pack
Wear resistant caps
High purity sand
Lifetime protection
4.5Editor score
5-Pack 20 amp Microwave Fuse 20a 250v, 0.24 x 1.2 inch for GE WB27X10388
5 piece pack
Direct replacement
Heavy-duty tube
Wide compatibility
4.5Editor score
Microwave Fuse – 20 Amp 250V Ceramic Slow-Blow,Direct Replacement for GE WB27X10388, Universal Fit for Whirlpool, Kenmore & Most Microwave Brands,6mm x 32mm – 6PCS
6 piece pack
Inrush current ready
Premium ceramic body
Heat resistance
4.4Editor score
(Pack of 10) 20 Amp 250V Microwave Fuse Slow-Blow Time Delay Ceramic Fuses 6x30mm Compatible and Universal Replacement for GE WB27X10388 and Whirlpool Kenmore Other Microwaves
10 piece pack
Alloy brass caps
Nickel plated finish
Time delay feature
4.6Editor score
BOJACK Microwave Fuse 20AL250V 6x30mm 20A 250V Slow-Blow Ceramic Fuses 20 amp 250 Volt 0.24 x 1.18 Inch Ceramic Tube Time-delay Fuses (Pack of 20)
20 piece pack
Plastic storage case
Time delay fuse
High quality build
4.6Editor score
Litoexpe 20-Pack 20A 250V Ceramic Time Delay Fuses
20 piece pack
Arc flash protection
Carrying case
Risk-free shopping
4.7Editor score
(Pack of 5) Microwave Replacement Fuse, 20A, 250V, Ceramic Fuse, Compatible and Universal Replacement for WB27X10388 and Other Microwaves
5 piece pack
Exceeds OEM reqs
Fast shipping
Multiple part compat
4.7Editor score
1. BOJACK Microwave Fuse – Best Overall 20A 250V Ceramic Fuse
BOJACK Microwave Fuse 20a Ceramic Fuse 20 Amp 250V Slow-Blow
6x30mm dimensions
20 Amp 250V
Slow-blow design
Ceramic tube
This fuse holds a strong 4.6-star rating and stands out as our Editor's Choice. It offers high-quality slow-blow protection designed to shield your microwave's circuitry from damage.
Pros
- Fits GE WB27X10388
- High quality build
- Protects circuitry
- Universal replacement
- Reliable safety
Cons
- Single unit only
- May need stock
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Its 20A 250V rating matches standard requirements, while the 6x30mm dimensions ensure a perfect fit for models like GE WB27X10388. The ceramic tube provides durability and safety.
Some users may find single packs limiting if they prefer bulk options. However, the reliable performance justifies individual purchases for most homeowners needing a quick fix.
If you need a trusted, safe replacement for a common microwave part, this BOJACK fuse is the top recommendation. It balances quality and fit perfectly.
Ceramic Safety Protection
The ceramic tube is filled with quartz sand to safely extinguish arcs, preventing dangerous explosions common in glass fuses.
Slow-Blow Design
This time-delay feature handles temporary current surges during startup without blowing, ensuring your microwave stays on.
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2. Frienda 20 Pcs Microwave Fuse – Best Bulk Option
Frienda 20 Pcs Microwave Fuse
20 piece pack
6.35x30mm size
Sand filled tube
Slow acting blow
With a 4.7-star rating, this bulk pack delivers 20 ceramic fuses designed for daily replacements. It is ideal for workshops or homes wanting a long-term stock of reliable parts.
Pros
- 20 piece quantity
- Surge resistant
- Fits GE Kenmore
- Safe quartz sand
- Long-term supply
Cons
- Not original brand
- Storage needed
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The fuse features a 20A 250V rating and durable construction. Filled with quartz sand, it prevents glass fragments and handles overloads safely. Compatible with GE WB27X10388.
Buying 20 fuses requires storage space. Also, as an aftermarket product, checking ratings carefully is recommended. But the quantity offers unmatched value for frequent repairs.
Choose this if you want to avoid buying fuses repeatedly. It is a practical, safe supply for Kenmore and GE microwave owners who value preparedness.
Safe Quartz Sand Fill
The sand inside extinguishes arcs safely, preventing fire risks and glass debris often associated with blown fuses.
Time Delay Compatibility
It handles surges during startup without blowing, ensuring your microwave works smoothly while still protecting against real faults.
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3. 5-Pack 20 amp Microwave Fuse – Best Budget 20A 250V Ceramic Fuse
5-Pack 20 amp Microwave Fuse 20a 250v
5 piece pack
20A 250V
Direct universal fit
Heavy-duty tube
Rated 4.5 stars, this 5-pack is our Best Budget pick. It provides an affordable way to secure spares for various microwave brands without breaking the bank.
Pros
- Affordable 5-pack
- Wide brand fit
- Fast replacement
- Heavy-duty build
- Safe protection
Cons
- Budget material
- Check dimensions
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Its specifications match the standard 20A 250V requirements. The heavy-duty ceramic tube ensures stable insulation and resistance against heat. It directly replaces part WB27X10388.
As a budget choice, materials might feel less premium. Always verify dimensions. But for simple, safe repairs on a budget, this is an excellent functional choice.
This is perfect for cost-conscious homeowners. If you want a reliable replacement with a little stock on hand, this 5-pack delivers essential safety efficiently.
Universal Replacement
It works with GE, Whirlpool, Kenmore, and others, making it a versatile option for most kitchen appliances.
Durable Construction
The high-strength ceramic body ensures long-term stability against heat and electrical overload during operation.
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4. BlueStars Upgraded 5-Pack – Best Premium 20A 250V Ceramic Fuse
BlueStars Upgraded 5-Pack WB27X10388 20A 20 Amp 250V Ceramic Microwave Fuse
5 piece pack
20A 250V
Quartz sand
Lifetime protection
BlueStars earns our Best Premium badge with a 4.5 rating. It features upgraded specs and wear-resistant caps for long-lasting performance in your microwave oven.
Pros
- Wear-resistant caps
- High purity sand
- Lifetime warranty
- Safe arc prevent
- Easy install
Cons
- Higher price
- Verify old part
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High-purity quartz sand enhances insulation safety. The 5-pack value ensures spares. It includes lifetime protection for defects, offering peace of mind beyond typical products.
Premium pricing may deter some, but the warranty justifies it. Always check your old part to avoid mismatches. Otherwise, this upgrade ensures robust protection.
Buy this if you want maximum reliability. It suits users willing to pay more for superior materials and a lifetime guarantee against product defects.
High Purity Sand
This sand prevents reconnection after blowing, ensuring the circuit stays safely open during critical faults.
Lifetime Protection
The lifetime protection plan covers any defects, making this a long-term investment in your appliance's safety.
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5. 5-Pack 20 amp Microwave Fuse – Best Value Pack
5-Pack 20 amp Microwave Fuse 20a 250v
5 piece pack
Universal replacement
Ceramic tube
20A 250V
This 5-pack offers a 4.5-star rating. It delivers wide compatibility with GE, Whirlpool, and Kenmore models, making it a go-to for universal replacements.
Pros
- Fits many brands
- Safe protection
- Durable ceramic
- Easy to install
- Affordable price
Cons
- Generic packaging
- Check size first
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The ceramic tube and sand fill provide safe insulation against overloads. The specifications match standard 20A 250V needs, ensuring reliable protection for your device.
Packaging is basic, so store safely. Always verify dimensions. But it remains an affordable solution for maintaining microwave health with minimal hassle.
Choose this for reliable, safe, and versatile protection. It fits most major brands and offers a solid value for standard repairs.
Safe Insulation
The ceramic tube resists heat and prevents electrical reconnection, keeping your microwave safe during operation.
Universal Fit
It replaces multiple OEM parts, reducing the need for brand-specific hunting during repairs.
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6. Microwave Fuse 20 Amp 250V – Best 6-Pack
Microwave Fuse – 20 Amp 250V Ceramic Slow-Blow
6 piece pack
20A 250V
Slow-blow design
Premium ceramic
This 6-pack holds a 4.4-star rating. It is a direct replacement for GE WB27X10388 and works with many other major brands like Whirlpool and Kenmore.
Pros
- Direct replacement
- Fits many brands
- Inrush ready
- Heat resistant
- Quick DIY fix
Cons
- Generic brand
- Verify rating
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Engineered specifically for microwaves, it handles inrush current during startup. The premium ceramic body ensures stable, long-lasting performance and reliable safety during faults.
Check your old fuse carefully. But this bulk pack simplifies future repairs. It saves time compared to single purchases and is great for DIYers.
This is ideal if you want a direct, safe, and ready-to-go replacement. It is a solid choice for restoring function quickly.
Inrush Current Ready
The slow-blow design handles temporary spikes without blowing, ensuring smooth microwave startups.
Heat Resistance
The premium ceramic ensures stable operation under heat, providing peace of mind during repairs.
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7. (Pack of 10) 20 Amp 250V Microwave Fuse – Best Stockpile
(Pack of 10) 20 Amp 250V Microwave Fuse
10 piece pack
20A 250V
Alloy brass caps
Nickel plated
With a 4.6-star rating, this 10-pack offers a great stockpile. The nickel-plated brass and alloy caps ensure conductivity and corrosion resistance for long-term reliability.
Pros
- 10 piece supply
- Alloy caps
- Fits major brands
- Sand filled
- Durable build
Cons
- Storage needed
- Generic packaging
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Filling with quartz sand prevents explosions. It is suitable for GE and Whirlpool Kenmore models. This supply ensures you never face an outage due to a blown fuse.
Storage space is needed for 10 fuses. But for regular users or technicians, the value is unmatched. It reduces frequent ordering hassle.
Choose this for a reliable, long-term supply of safe fuses. It protects against overloads and fits standard microwave models perfectly.
Alloy Brass Caps
Nickel-plated alloy caps provide corrosion resistance and reliable connections inside the fuse holder.
Quartz Sand Fill
The sand ensures safe arc interruption, preventing glass fragments and fire hazards during failures.
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8. BOJACK Microwave Fuse (Pack of 20) – Best Long-Term Supply
BOJACK Microwave Fuse 20AL250V (Pack of 20)
20 piece pack
Plastic storage case
Time-delay fuse
6x30mm size
This pack includes 20 fuses for 4.6 stars. It comes in a plastic storage case, offering organization and protection for your repair supplies.
Pros
- 20 piece bulk
- Plastic case
- Slow-blow type
- High quality
- Universal fit
Cons
- High upfront cost
- Large storage
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The slow-blow time-delay design handles surges safely. With 20 pieces, you are set for many years. It fits standard 6x30mm slots for GE and others.
Storage space and upfront cost are considerations. But for technicians or frequent users, this is a high-value, organized investment in readiness.
Buy this for a premium stockpile. It is reliable, organized, and ready for years of microwave maintenance.
Organized Storage
The plastic case keeps 20 fuses safe and organized for future repairs.
Time-Delay Safety
This feature handles surges without blowing, ensuring your microwave stays on during safe operation.
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9. Litoexpe 20-Pack 20A 250V Ceramic Fuses – Best for Heavy Loads
Litoexpe 20-Pack 20A 250V Ceramic Time Delay Fuses
20 piece pack
Arc flash safe
Risk-free buy
Heavy duty
Rated 4.7 stars, this 20-pack fits heavy loads. Its ceramic construction prevents arc flashover, making it safer than glass alternatives.
Pros
- High amperage fit
- Arc flash safe
- Carrying case
- Risk-free return
- Safe design
Cons
- Check sizing first
- Generic brand
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It works for power tools and inverters too. The carrying case organizes your stock. With risk-free shopping, returns are easy if needed.
Verify dimensions before ordering. Generic branding may not appeal. But the safety and bulk value are strong for those needing reliable, high-amperage fuses.
Choose this for high loads. It protects against overloads safely and comes with a carrying case and risk-free assurance.
Arc Flash Prevention
The ceramic body prevents flashover and reduces bursting risks compared to glass fuses.
Risk-Free Shopping
A 30-day return policy ensures you can try these without worry, offering peace of mind.
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10. (Pack of 5) Microwave Replacement Fuse – Best Fast Shipping
(Pack of 5) Microwave Replacement Fuse, 20A, 250V, Ceramic Fuse
5 piece pack
Fast shipping
Exceeds OEM
Many part fit
This 5-pack has a 4.7-star rating. It lists extensive part compatibility, including OEM standards. Shipping is fast, so you get back to cooking quickly.
Pros
- Exceeds OEM reqs
- Multiple part compat
- In stock fast
- Safe ceramic
- Reliable value
Cons
- Generic brand
- Check model
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It exceeds OEM requirements for durability. The ceramic fuse protects against overloads effectively. Its 5-pack value is practical for most households needing spares.
Generic branding means verify specs. But the safety and fast shipping are excellent. This is a solid choice for quick, standard replacements.
Choose this for speed. It fits many models, meets safety standards, and arrives fast. A solid, reliable replacement option.
Exceeds OEM Requirements
Guaranteed to meet OEM standards, ensuring your microwave stays safe and functional.
Fast Shipping
In-stock availability ensures rapid delivery so you can repair your microwave quickly.
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Buying Guide – How to Choose the Best 20A 250V Ceramic Fuse
Choosing the right fuse ensures safety and proper function. Consider these factors before purchasing a replacement part for your microwave oven.
Amperage and Voltage Rating
Ensure the fuse matches your microwave's specifications. Most microwaves require 20A at 250V for proper overload protection.
Always verify both ratings to avoid circuit damage or fire hazards.
Ceramic vs. Glass Construction
Ceramic fuses are safer because they contain sand that extinguishes arcs safely during a blow. Glass fuses can shatter and create dangerous debris.
Opt for ceramic construction to ensure long-term safety and durability.
Slow-Blow vs. Fast-Blow
Slow-blow (time-delay) fuses handle startup surges without blowing. Fast-blow fuses may trip unnecessarily during normal operation.
Select slow-blow fuses for reliable microwave protection.
Physical Dimensions
Standard sizes like 6x30mm fit most microwaves. Always measure your old fuse to ensure a perfect fit in the holder.
Verify dimensions to prevent connection issues.
OEM Compatibility
Check compatibility with your microwave model. Many fuses replace specific OEM parts like WB27X10388.
Verify fit with your model to ensure proper function.
Safety Certifications
Look for certifications like CSA or UL that confirm safety standards. These ensure the fuse meets rigorous testing for electrical safety.
Choose certified products for reliable protection.
Pack Quantity
Buying in bulk (5, 10, or 20 pieces) offers value. Consider how many spares you need for future repairs.
Bulk packs reduce future ordering costs.
Warranty and Support
Some brands offer lifetime protection or 30-day return policies. This ensures peace of mind if the part fails prematurely.
Choose vendors offering support or warranty coverage.
How to Use and Care for Your 20A 250V Ceramic Fuse
Unplug your microwave and wait before handling internal parts. Safety is critical before opening the casing.
Locate the fuse holder near the power cord or control board. Use a multimeter to confirm the old fuse is blown.
Insert the new fuse and test the microwave carefully. Always check for underlying issues if the fuse blows again.
Frequently Asked Questions
Why did my microwave fuse blow?
A fuse blows when there is excessive current, overheating, or a short circuit in the internal components. If it blows frequently, there may be a deeper fault like a damaged diode or magnetron.
Is a ceramic fuse safer than a glass one?
Yes, ceramic fuses are safer because they are filled with sand to prevent fire and contain any fragments. Glass fuses can shatter dangerously during a blow.
Can I use a 15A fuse instead of 20A?
No, always match the original amperage. Using a lower-rated fuse may cause it to blow unnecessarily. Using a higher one risks damaging the circuit.
How do I know if the fuse is blown?
Visually inspect the internal element. If the wire is broken or blackened, it is blown. You can also test continuity with a multimeter.
Do all microwaves use 20A fuses?
Most use 20A 250V ceramic fuses, but some models may vary. Always check the existing part or your user manual before replacing.
Why does my new fuse keep blowing?
If a new fuse blows immediately, there may be a short in the wiring, door lock, or magnetron. Consult a technician for deeper diagnostics.
Final Thoughts on Choosing the Best 20A 250V Ceramic Fuse
This guide reviewed ten top-rated 20A 250V ceramic fuses. The BOJACK Editor's Choice and BlueStars Premium models offer standout safety and durability.
Prioritize slow-blow design, safety certifications, and compatible dimensions. Ensure the fuse matches your microwave model perfectly.
Prices and availability change, so check current listings before purchasing. Always disconnect power before installation to maintain safety.