5-Pack 20 amp Microwave Fuse 20a 250v, 0.24 x 1.2 inch for GE WB27X10388
4.5Editor score
5 pack value pricing
Universal fit standard
Quartz sand filled
In this guide
Microwave ovens rely on critical safety components to function correctly and protect your home. A blown fuse is a common issue that stops your appliance from powering up entirely. Choosing the right replacement ensures your microwave operates safely without risking further damage to internal circuitry.
We evaluated ten leading ceramic fuse options based on compatibility, build quality, and user feedback. Each product was selected for its ability to handle standard microwave electrical loads while providing reliable slow-blow protection against power surges and short circuits in your kitchen.
Every pick below highlights specific features like size, voltage ratings, and brand reputation. Prices and availability may change frequently, so verify current listings before purchasing. These selections aim to help you restore your microwave quickly with a trusted replacement part.
Top 3 Picks for Best 20A 250V Ceramic Fuses for Microwave Ovens
BOJACK Microwave Fuse 20a Ceramic Fuse 20 Amp 250V Slow-Blow Compatible and Universal Replacement for WB27X10388 and Other Microwaves
4.6Editor score
20A 250V slow blow
Fits GE WB27X10388
Ceramic tube construction
Frienda 20 Pcs Microwave Fuse, 20a 250v Slow-Blow Ceramic
4.7Editor score
20 piece bulk pack
Resist surge current
Safe quartz fill
Top 10 Best 20A 250V Ceramic Fuses for Microwave Ovens in 2026 Compared
The following table provides a direct comparison of all ten selected fuses. You can see key specs and ratings side by side to make an informed decision for your specific microwave model.
ProductsSpecificationsEditor scorePrice
Editor's Choice
BOJACK Microwave Fuse
20A 250V rating
6x30mm size
Slow-blow type
GE WB27X10388 fit
4.6Editor score
Editor's Choice
Frienda 20 Pcs
20A 250V rating
6.35x30mm size
Slow acting blow
GE Kenmore compatible
4.7Editor score
Best Premium
HiQltyla 20A
20A 250V rating
6x30mm size
CSA certified
Quartz sand filled
4.6Editor score
BlueStars Upgraded 5-Pack
20A 250V rating
6x30mm size
Ceramic tube body
Lifetime protection
4.5Editor score
5-Pack 20 amp
20A 250V rating
6x30mm size
Universal replacement
GE compatible
4.5Editor score
Microwave Fuse 6PCS
20A 250V rating
6mmx32mm size
Slow-Blow design
Whirlpool Kenmore fit
4.4Editor score
Pack of 10 Fuses
20A 250V rating
6x30mm size
Time Delay type
GE WB27X10388 fit
4.6Editor score
BOJACK Pack of 20
20A 250V rating
6x30mm size
Time-delay fuses
Plastic storage case
4.6Editor score
Litoexpe 20-Pack
20A 250V rating
6x30mm size
Carrying case included
Nickel plated brass
4.7Editor score
(Pack of 5) Microwave Replacement
20A 250V rating
Ceramic line fuse
Fast Blow type
OEM standards fit
4.7Editor score
1. BOJACK Microwave Fuse – Best Overall 20A 250V Ceramic Fuses for Microwave Ovens
BOJACK Microwave Fuse
20A 250V rating
6x30mm size
Slow-blow protection
GE WB27X10388
The BOJACK Microwave Fuse stands out as a top choice for restoring microwave functionality. With a strong rating, it offers a reliable solution for common electrical faults in kitchen appliances. Its slow-blow design is specifically engineered to handle the unique power needs of microwave ovens.
Pros
- High quality slow-blow design
- Compatible with GE models
- Protects circuitry effectively
- Easy to install
- Reliable brand reputation
Cons
- Single pack only
- Check size before buying
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This fuse features precise dimensions that match original equipment manufacturer specifications. It is built to protect your microwave's circuitry from dangerous overcurrents and surges. The ceramic construction ensures durability and safety, minimizing risks during operation.
While it offers excellent protection, users should ensure their model matches the specifications. Compatibility with GE models like WB27X10388 makes it a versatile pick for many households. The slow-blow nature prevents nuisance blowing during startup surges.
Homeowners looking for a trusted replacement will find this fuse highly effective. It balances performance and ease of use, ensuring your microwave returns to service quickly. For those needing a single unit, this option provides confidence in the repair.
Safety and Protection
The ceramic tube and slow-blow feature work together to protect internal components from sudden power spikes safely.
Ease of Use
Simple installation allows DIY enthusiasts to fix blown fuses without professional help, saving time and money.
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2. Frienda 20 Pcs – Best Premium Value 20A 250V Ceramic Fuses for Microwave Ovens
Frienda 20 Pcs
20A 250V rating
6.35x30mm size
Slow acting blow
Quartz sand filled
The Frienda 20 Pcs set offers exceptional value for those needing multiple replacements. With a high rating, this pack ensures you have spares for future repairs or shared household use. It provides robust protection against electrical overloads effectively.
Pros
- 20 piece bulk pack
- Fits GE and Kenmore
- Safe quartz sand fill
- Resists surge current
- Long-term satisfaction
Cons
- Non-original aftermarket product
- Verify voltage carefully
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These ceramic fuses are filled with quartz sand for added safety. When a fuse blows, it prevents glass fragments from scattering. The slow-acting design allows temporary inrush currents without blowing, making it ideal for microwave startup cycles.
While it is an aftermarket product, it meets standard electrical requirements. The bulk pack is a practical solution for landlords or frequent DIYers. Always check your fuse size and voltage before purchasing to ensure a perfect match.
Buying this bulk set ensures you are prepared for unexpected microwave issues. It offers peace of mind with sufficient quantity for daily replacement demands. The durable construction supports long-term performance in your kitchen appliances.
Quartz Sand Safety
The quartz sand inside the fuse tube reduces risks by preventing arc explosions compared to standard glass fuses.
Bulk Convenience
Having 20 pieces on hand means you can replace blown fuses immediately without waiting for shipping.
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3. HiQltyla 20A – Reliable 20A 250V Ceramic Fuses for Microwave Ovens
HiQltyla 20A
20A 250V rating
6x30mm size
CSA certified
Slow-blow design
HiQltyla offers a focused two-pack solution with solid safety certifications. The CSA certification adds a layer of trust for users prioritizing compliance. These fuses use slow-blow design to keep your microwave working safely.
Pros
- High quality materials
- CSA safety certified
- Quartz sand filled
- Slow-blow protection
- 1 year warranty
Cons
- Only 2 pieces included
- Check old fuse size
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The ceramic tube is filled with quartz sand to prevent arcs. This design choice significantly reduces the risk of fire compared to air-filled glass fuses. High-quality materials support a long service life for your appliance.
While the two-pack is smaller than bulk options, it suits immediate needs. The 1-year warranty provides additional confidence in product quality. Users should confirm dimensions match their existing fuse before installation.
This fuse is a safe bet for standard microwave repairs. It balances cost and safety features effectively. For those needing just one or two replacements quickly, this option delivers reliable protection.
CSA Certification
Electrical properties are tested and certified to meet specific safety standards for consumer electronics.
Arc Prevention
Quartz sand helps suppress arcs during fusing, reducing the risk of explosion and surrounding damage.
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4. BlueStars Upgraded 5-Pack – Durable 20A 250V Ceramic Fuses for Microwave Ovens
BlueStars Upgraded 5-Pack
20A 250V rating
6x30mm size
High-purity quartz sand
Ceramic tube body
BlueStars provides a versatile 5-pack suitable for various microwave brands. The high-purity quartz sand ensures stable insulation against overcurrents. This product is designed to save time with a quick 5-minute repair process.
Pros
- 5 pack quantity
- Protects against faults
- High-purity quartz sand
- Easy 5-minute fix
- Lifetime protection promise
Cons
- Verify part numbers carefully
- May need troubleshooting
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These fuses cut power when overheating or surges occur. The ceramic tube body is wear-resistant for a sturdy construction. Users can trust this fuse to prevent further damage to the circuit.
While it covers many brands like GE and Whirlpool, always verify your part number. If the fuse keeps blowing, other parts may be faulty. The lifetime protection promise adds value to the purchase.
This is an excellent choice for homeowners with multiple appliances. It offers reliable performance and strong safety features. For general household repairs, this pack provides plenty of fuses for the future.
Wear-Resistant Build
The ceramic tube and end caps ensure a sturdy construction that withstands wear over time.
Fault Protection
Designed to blow when dangerous currents occur, this fuse protects your appliance from severe damage.
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5. 5-Pack 20 amp – Best Budget 20A 250V Ceramic Fuses for Microwave Ovens
5-Pack 20 amp
20A 250V rating
6x30mm size
Direct replacement
Universal fit
This budget-friendly 5-pack delivers solid performance for standard microwave repairs. The slow-blow ceramic design ensures it handles overloads without nuisance tripping. It acts as a reliable safety device for protecting internal circuitry.
Pros
- Affordable 5 pack
- Direct universal replacement
- Reliable safety device
- Durable ceramic construction
- Restores microwave quickly
Cons
- Verify voltage and size
- May need basic tools
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Made with heavy-duty ceramic and high-purity quartz sand, these fuses are stable. They replace part numbers like WB27X10388 directly. The design ensures wear resistance and safe operation for extended periods.
While affordable, users must still check their old fuse details. The instructions recommend turning off power before replacement. This simple step prevents accidents and ensures proper installation during the repair.
Those on a tight budget will appreciate the value of this pack. It extends the service life of your microwave affordably. For quick fixes, this fuse offers a fast and effective solution.
Universal Replacement
Compatible with major brands like GE, Whirlpool, and Kenmore, offering broad fit for most models.
Safety Focus
Reliable safety device that quickly disconnects power during surges, preventing further appliance damage.
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6. Microwave Fuse 6PCS – Universal 20A 250V Ceramic Fuses for Microwave Ovens
Microwave Fuse 6PCS
20A 250V rating
6mmx32mm size
Slow-Blow time delay
High quality ceramic
This 6-piece set offers guaranteed compatibility with GE and other brands. The slow-blow design is specifically engineered for microwave ovens to handle startup surges. It protects sensitive components from sustained overloads safely.
Pros
- 6 pack quantity
- Handles inrush current
- Premium ceramic construction
- Easy DIY install
- Saves money on service
Cons
- Verify old fuse rating
- Check specific size
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Constructed from high-quality ceramic, these fuses offer excellent heat resistance. They ensure stable operation and a long service life. The bulk pack allows you to keep spares on hand for future needs.
Installing these fuses is a simple DIY task in minutes. Unplugging the microwave ensures safety during the swap. While it saves money, always check the rating to avoid unnecessary replacements.
This fuse is a practical choice for those needing multiple replacements. It offers peace of mind with reliable protection. For a straightforward fix, this set helps regain appliance use affordably.
Inrush Current Handling
The time-delay design allows temporary high current at startup without blowing unnecessarily.
DIY Savings
Keeping spares on hand saves time and money compared to professional service calls.
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7. Pack of 10 Fuses – Large Quantity 20A 250V Ceramic Fuses for Microwave Ovens
Pack of 10 Fuses
20A 250V rating
6x30mm size
Quartz sand filled
Time Delay type
A bulk pack of 10 ensures you have plenty of spares for repairs. This set includes slow-blow time delay fuses designed for electronics. They fit standard dimensions like 6x30mm for broad compatibility.
Pros
- 10 piece pack
- Time Delay protection
- Quartz sand filled
- N alloy and nickel plated
- Universal fit
Cons
- Check size carefully
- Large quantity needed
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The body uses ceramic tubes, alloy, and nickel-plated brass for durability. Filled with quartz sand, they offer protection against current surges. It is suitable for various kinds of electronic devices beyond microwaves.
With so many pieces, this pack is great for frequent repairs. Always check your fuse ratings before ordering to match requirements. The time delay helps prevent early failure during normal operation cycles.
This is a smart buy for those managing multiple appliances. It offers a reliable solution for common power protection needs. Ensuring the size matches your device makes this a practical choice.
Broad Compatibility
Designed as a universal replacement, these fuses fit a wide range of brands and models.
Surge Protection
The sand-filled design helps safely interrupt current during surges, protecting internal components.
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8. BOJACK Pack of 20 – Massive Bulk 20A 250V Ceramic Fuses for Microwave Ovens
BOJACK Pack of 20
20A 250V rating
6x30mm size
Time-delay fuses
Plastic storage case
This massive pack provides a long-term supply for any repair needs. Packed in a plastic storage case, these fuses stay organized. They feature the high-quality slow-blow design known for safety.
Pros
- 20 piece bulk pack
- High quality slow-blow
- Plastic storage case
- Compatible with GE
- Long-term supply
Cons
- Large investment upfront
- Check voltage rating
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Designed as time-delay fuses, they handle startup currents without blowing. This reduces unnecessary replacements and extends appliance life. The 20-piece quantity ensures you never run out when repairs are needed.
With such a large quantity, verify the specific dimensions. It matches standard 6x30mm sizes for many models. This is a cost-effective solution for stocking up for years of service.
Ideal for homeowners who prefer having spares on hand. It offers reliable performance and strong brand trust. For those needing multiple units, this set covers both immediate and future needs.
Storage Case
The included plastic case keeps fuses organized and protected from damage until needed.
Stock Up
20 pieces means you are fully prepared for any electrical repair for years.
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9. Litoexpe 20-Pack – Safe 20A 250V Ceramic Fuses for Microwave Ovens
Litoexpe 20-Pack
20A 250V rating
6x30mm size
Nickel plated brass
Carrying case
The Litoexpe 20-Pack focuses on safety features like reducing bursting risks. Ceramic construction prevents arc flashover and reduces hot metal spray. It is great replacement fuse for high amperage loads like microwaves.
Pros
- 20 piece pack
- Reduces bursting risks
- Great for high loads
- Risk-free shopping
- Carrying case included
Cons
- Verify voltage before order
- Check current rating
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Made with nickel-plated brass and quartz sand, these fuses resist sudden overload. This design greatly reduces chances of fire compared to glass fuses. The carrying case makes transport and storage easy.
Users should confirm size and voltage ratings carefully before purchase. If questions arise, the seller offers helpful support services. The 30-day return policy adds confidence to the buying process.
This is a high-quality bulk option for serious repairs. It prioritizes safety and reliability. For those needing a large supply with safety assurance, this choice is highly recommended.
Arc Flashover Safety
Ceramic design reduces the risk of bursting and hot spray compared to standard glass fuses.
High Amperage
Designed to handle massive current fluctuations safely, suitable for high power appliances.
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10. (Pack of 5) Microwave Replacement – OEM Standards 20A 250V Ceramic Fuses for Microwave Ovens
(Pack of 5) Microwave Replacement
20A 250V rating
Ceramic line fuse
OEM standards fit
Guaranteed to exceed OEM
This pack claims to exceed OEM standards for quality and performance. With a wide range of compatible part numbers, it offers broad utility. The ceramic fuse design is durable and effective for microwave protection.
Pros
- Guaranteed to exceed OEM
- Ships fast
- Many part number fits
- Ceramic construction
- 5 pack quantity
Cons
- Verify old fuse type
- Check compatibility
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Manufacturers claim guaranteed performance that meets industry requirements. The product ships fast to minimize downtime. It serves as a universal replacement for many brands and models effectively.
While versatile, check your old fuse type like Fast Blow or Slow Blow. The listing mentions many compatible numbers for convenience. Ensuring match reduces the risk of returning items.
Ideal for standard repairs where OEM parts are costly. It provides a reliable solution with strong performance promises. For quick fixes, this pack helps restore appliance function with confidence.
OEM Standards
Guaranteed to meet or exceed original equipment manufacturer requirements for safety and function.
Fast Shipping
Quick delivery options mean less waiting time for repairs and appliance restoration.
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Buying Guide – How to Choose the Best 20A 250V Ceramic Fuses for Microwave Ovens
Selecting the right fuse requires checking several technical details to ensure safety and compatibility. This guide outlines the key factors you should consider before making a purchase.
Current and Voltage Rating
Always verify that the new fuse matches the original current (20A) and voltage (250V) ratings. Using a fuse with a different rating can lead to poor protection or appliance damage.
Match the original current and voltage numbers exactly to prevent electrical hazards.
Physical Dimensions
The physical size of the fuse, such as 6x30mm, must fit the fuse holder. Measure your old fuse carefully to ensure it fits properly without forcing.
Check the diameter and length specifications against your old fuse for a correct fit.
Slow-Blow vs. Fast-Blow
Most microwaves require slow-blow fuses to handle inrush currents during startup without blowing immediately. A fast-blow fuse might interrupt power unnecessarily during normal operation.
Confirm whether your microwave needs a slow-blow type to avoid nuisance blowing.
Material and Safety
Ceramic fuses filled with quartz sand offer better safety than glass by preventing arc explosions. This material choice reduces fire risks if the fuse blows under high current.
Look for ceramic construction with sand fill for superior safety and durability.
Brand Reputation
Choosing a reputable brand or well-reviewed seller ensures consistent quality and performance. Established manufacturers often have better quality control processes.
Select sellers with high ratings and positive reviews for reliable quality.
Quantity
Buying in bulk often provides better value and ensures you have spares for future repairs. Consider if you need a single unit or a pack for long-term use.
Assess how many units you need now versus for future potential repairs.
Price vs. Value
Balance the price with the features like warranty and bulk quantity. Sometimes paying slightly more for a better pack offers better long-term value.
Compare the cost per unit to find the most economical option.
How to Use and Care for Your 20A 250V Ceramic Fuses for Microwave Ovens
Always disconnect the microwave from the power source before attempting any repairs to ensure safety. This prevents electrical shock or accidental short circuits during the fuse replacement process.
Inspect the old fuse visually before removal. If it is visibly burnt or broken, the new fuse must match the exact specifications to avoid repeated failures.
Store unused fuses in a dry, cool place to prevent moisture damage. A plastic case helps keep them organized and protected from physical damage until needed.
Frequently Asked Questions
What does a 20A 250V ceramic fuse do in a microwave?
This fuse acts as a safety device that protects the microwave's internal circuitry from overloads and surges. It interrupts the electrical current if it exceeds safe levels, preventing damage to sensitive components.
Can I use a different fuse if I cannot find this exact model?
No, using a different fuse rating or type can damage your microwave or cause a fire. Always match the amp, voltage, and dimensions of your original fuse for safe operation.
Why do microwave fuses blow frequently?
Frequent blowing often indicates a deeper issue like a short circuit in the high voltage diode or magnetron. If replacing the fuse does not solve it, you should have a professional inspect the appliance.
Is a slow-blow fuse necessary for microwaves?
Yes, slow-blow fuses are designed to handle the temporary inrush current that occurs when the microwave starts. Fast-blow fuses might blow too easily during normal startup cycles.
How do I install a replacement fuse?
First, unplug the microwave. Open the housing, locate the fuse holder, and remove the old fuse. Insert the new one in the same orientation and secure the housing before reconnecting power.
What does 250V mean for the fuse?
The 250V rating means the fuse can safely interrupt circuits up to 250 volts. This ensures it will not break down or fail when subjected to standard household voltage levels.
Final Thoughts on Choosing the Best 20A 250V Ceramic Fuses for Microwave Ovens
We have highlighted ten reliable options that offer safety, compatibility, and value. Whether you need a single unit or a bulk pack, these selections cover a wide range of microwave repair needs.
Prioritize matching the voltage and dimensions of your original fuse to ensure proper protection. Investing in quality materials like quartz sand adds a valuable layer of safety for your home.
Please check current prices and availability before purchasing as these change frequently. We hope this guide helps you choose the right fuse to keep your microwave running safely.