5-Pack 20 amp Microwave Fuse 20a 250v, 0.24 x 1.2 inch for GE WB27X10388
4.5Editor score
Cost-effective five pack
Wide brand compatibility
Simple quick installation
In this guide
Microwave ovens rely on internal safety components to function correctly. A blown fuse is a common issue that stops your appliance from heating food properly. Identifying the right replacement part ensures your kitchen remains safe and efficient for daily cooking tasks.
We analyzed ten highly rated ceramic fuses designed for 20 amp and 250 volt systems. Our comparison focuses on compatibility, build quality, and safety features to help you choose the best option for your specific microwave model without unnecessary guesswork.
Each product entry provides detailed specifications, pros, and cons to guide your decision. Please note that availability and specific deal details may change over time. Always verify your existing fuse specifications before purchasing to ensure a perfect match for your unit.
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
Slow-blow ceramic design
Universal GE replacement fit
High quality construction
BlueStars Upgraded 5-Pack WB27X10388 20A 20 Amp 250V Ceramic Microwave Fuse
4.5Editor score
Lifetime protection warranty
High purity quartz sand
Heavy-duty ceramic body
Top 10 Best 20A 250V Ceramic Fuses for Microwave Ovens in 2026 Compared
The following table provides a side-by-side view of all ten selected products to help you quickly compare key specifications and compatibility details for your microwave repair needs.
ProductsSpecificationsEditor scorePrice
Editor's Choice
BOJACK Microwave Fuse 20a Ceramic Fuse 20 Amp 250V Slow-Blow Compatible and Universal Replacement for WB27X10388 and Other Microwaves
20 Amp 250 Volt
6 by 30 millimeters
Slow-blow time delay
Universal replacement fit
4.6Editor score
Editor's Choice
Frienda 20 Pcs Microwave Fuse, 20a 250v Slow-Blow Ceramic
Twenty piece bulk quantity
Slow acting blow type
Quartz sand filled tube
GE WB27X10388 replacement
4.7Editor score
Best Premium
HiQltyla 20A 250V Microwave Fuse, 6x30mm Slow-Blow Ceramic Cartridge, 2Pcs
Two piece package size
CSA safety certification
Arc resistant design
Universal microwave replacement
4.6Editor score
BlueStars Upgraded 5-Pack WB27X10388 20A 20 Amp 250V Ceramic Microwave Fuse
Five pack quantity
High purity quartz sand
Wear resistant end caps
Compatible with Whirlpool
4.5Editor score
5-Pack 20 amp Microwave Fuse 20a 250v, 0.24 x 1.2 inch for GE WB27X10388
Five pack value option
KitchenAid compatible models
High strength end caps
Direct universal replacement
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
Six piece total count
High quality ceramic material
Inrush current handling
Easy DIY installation
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
Ten piece bulk pack
Alloy brass terminals
Nickel plated finish
Sand filled safety core
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)
Twenty piece storage case
High quality materials
Time delay protection
Ceramic tube construction
4.6Editor score
Litoexpe 20-Pack 20A 250V Ceramic Time Delay Fuses
Carrying case included
Arc flashover prevention
Three step return policy
Large amperage loads
4.7Editor score
(Pack of 5) Microwave Replacement Fuse, 20A, 250V, Ceramic Fuse, Compatible and Universal Replacement for WB27X10388 and Other Microwaves
OEM standard guaranteed
Multiple part replacements
Fast shipping available
Exceeds requirements
4.7Editor score
1. BOJACK Microwave Fuse – Best Overall Safety Protection
BOJACK Microwave Fuse 20a Ceramic Fuse 20 Amp 250V Slow-Blow Compatible and Universal Replacement for WB27X10388 and Other Microwaves
Slow-blow design
20 Amp 250V
6 by 30 mm
GE WB27X10388
This BOJACK fuse is a top-tier safety device for your microwave oven. It carries a strong customer rating and is designed to withstand the surge currents typical during startup.
Pros
- Excellent quality ceramic
- Slow blow protection
- Universal replacement fit
- High customer rating
- Safe for circuitry
Cons
- Single piece pack
- Price per unit
We may earn a commission when you buy through this link, at no additional cost to you.
The slow-blow characteristic ensures it does not blow unnecessarily during normal operation. It effectively protects against overloads and short circuits without being too sensitive to temporary spikes.
Some users might prefer a multi-pack value option instead of a single unit. However, the quality and reliability justify the cost for a critical safety component in your appliance.
If you need a reliable fix for a GE or compatible model, this is a strong choice. It balances performance and safety to keep your kitchen appliance running correctly.
Superior Circuit Protection
The slow-blow ceramic design handles temporary inrush currents effectively. This prevents premature failure during normal microwave startup cycles.
Universal Compatibility
Designed to replace standard WB27X10388 parts. It fits a wide range of GE and other major brand microwave models.
We may earn a commission when you buy through this link, at no additional cost to you.
2. Frienda 20 Pcs – Best Bulk Value
Frienda 20 Pcs Microwave Fuse, 20a 250v Slow-Blow Ceramic
20 piece quantity
Slow acting blow
6.35 by 30 mm
GE WB27X10388
The Frienda pack offers an excellent value with twenty fuses included in one order. It is perfect for those who want spares or repair multiple units over time.
Pros
- Large twenty piece pack
- High safety rating
- Surge current resistant
- Fits GE and Kenmore
- Sand filled tube
Cons
- Not original brand
- Check size carefully
We may earn a commission when you buy through this link, at no additional cost to you.
Each fuse features a slow-blow ceramic design that resists surge currents effectively. The internal sand filling ensures safety by preventing glass fragments if the fuse burns out.
It is an aftermarket product rather than an original equipment manufacturer item. You should verify dimensions before purchase to ensure a proper fit in your specific model.
This bulk option is ideal for DIY enthusiasts who want to keep supplies on hand. The quality is strong enough for long-term daily use in household appliances.
High Volume Supply
With twenty pieces included, you have plenty of replacements ready. This bulk approach saves time and money compared to buying single units later.
Safety Filled Tube
The ceramic tube is filled with sand for extra safety. This reduces the risk of explosion and protects surrounding components from debris.
We may earn a commission when you buy through this link, at no additional cost to you.
3. HiQltyla 20A 250V – Best Compact Two-Pack
HiQltyla 20A 250V Microwave Fuse, 6x30mm Slow-Blow Ceramic Cartridge, 2Pcs
2 piece package
CSA certified
6 by 30 mm
Quartz sand filled
This HiQltyla pack includes two fuses that meet strict CSA safety standards. It offers a high quality build to protect your microwave circuitry from electrical faults.
Pros
- CSA safety certification
- Arc resistant design
- Safe quartz sand core
- High quality materials
- 1 year warranty
Cons
- Small pack quantity
- Limited availability
We may earn a commission when you buy through this link, at no additional cost to you.
The ceramic tube is filled with quartz sand to prevent arcing during failure. This safety feature ensures that the fuse does not cause fires even in extreme cases.
The pack size is smaller than bulk options but sufficient for immediate repair needs. You might need to order again if you have multiple devices to fix quickly.
Choose this if safety certification is a priority for your household. It combines reliable performance with certified quality assurance standards for peace of mind.
Certified Safety Standards
All electrical properties have passed rigorous CSA certification testing. This ensures the fuse meets strict industry safety guidelines for household use.
Arc Prevention Design
Quartz sand filling prevents arc pulling during failure. This keeps the fuse tube intact and protects other components from heat damage.
We may earn a commission when you buy through this link, at no additional cost to you.
4. BlueStars Upgraded 5-Pack – Best Lifetime Warranty
BlueStars Upgraded 5-Pack WB27X10388 20A 20 Amp 250V Ceramic Microwave Fuse
Five pack quantity
High purity quartz sand
Wear resistant caps
Compatible with Whirlpool
BlueStars offers a premium five-pack solution with a lifetime warranty for added confidence. It is built with high purity quartz sand for superior insulation performance.
Pros
- Lifetime protection warranty
- High purity quartz sand
- Wear resistant end caps
- Compatible with many brands
- Quick five minute fix
Cons
- Check old fuse size
- Installation requires power off
We may earn a commission when you buy through this link, at no additional cost to you.
The wear-resistant end caps ensure a sturdy connection within the fuse holder. This construction helps prevent failure due to vibration or thermal cycling over time.
You must disconnect power and check the old fuse size before installation. If it keeps blowing, there might be other faulty parts causing the issue that need repair.
This option is excellent for those who want long-term reliability and brand assurance. The warranty provides extra security for your investment in appliance repair.
Premium Insulation
High purity quartz sand maintains insulation and prevents current breakthrough. This design protects the load from damage due to overcurrent.
Lifetime Coverage
Enjoy reliable performance with a lifetime protection policy. Any defects or issues are covered ensuring your product remains fully protected.
We may earn a commission when you buy through this link, at no additional cost to you.
5. 5-Pack 20 amp – Best Affordable Value
5-Pack 20 amp Microwave Fuse 20a 250v, 0.24 x 1.2 inch for GE WB27X10388
Five piece pack
High strength caps
KitchenAid compatible
Universal replacement
This five-pack offers a highly affordable solution for common microwave repairs. It is designed as a direct universal replacement for most standard microwave models.
Pros
- Very affordable pricing
- Five piece count
- Fits KitchenAid and GE
- High strength end caps
- Quick and easy install
Cons
- Limited brand variety
- Basic packaging
We may earn a commission when you buy through this link, at no additional cost to you.
The heavy-duty ceramic tube and high-strength end caps ensure durability. It effectively disconnects power during overheating to protect the internal circuit from further damage.
While the packaging is simple, the product performance is reliable for the price. You should turn off power before starting the replacement to ensure personal safety.
Choose this if you want to save money without compromising on basic safety. It is a fast way to restore your microwave and extend its service life.
Wide Brand Fit
Compatible with GE, KitchenAid, and other major brands. It replaces part numbers like WB27X10388 for universal convenience.
Cost Effective
The affordable price makes it easy to buy spares. You can repair your appliance without a large expense.
We may earn a commission when you buy through this link, at no additional cost to you.
6. Microwave Fuse – 20 Amp – Best Six-Pack Option
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
Six piece pack
High quality ceramic
Inrush current handling
Direct replacement fit
This six-pack provides a balanced quantity for home repair projects. The high-quality ceramic material offers excellent heat resistance and electrical insulation for safe operation.
Pros
- Six piece quantity
- High heat resistance
- Handles startup surge
- Fits Whirlpool
- Easy DIY swap
Cons
- Verify rating first
- Check fuse size
We may earn a commission when you buy through this link, at no additional cost to you.
The slow-blow design handles temporary high inrush currents at startup reliably. It protects sensitive internal components while allowing normal operation without interruption.
You should verify your old fuse rating before installation to ensure accuracy. Always unplug the microwave first to avoid electrical hazards during the swap.
Ideal for anyone needing multiple spares or repairing different appliances. This pack saves time compared to buying single fuses for future needs.
Startup Surge Handling
Engineered to handle temporary high inrush currents. This prevents unnecessary blows during normal microwave operation.
DIY Friendly
Simple installation process takes just minutes. Save money on professional service calls by fixing it yourself.
We may earn a commission when you buy through this link, at no additional cost to you.
7. Pack of 10 – Best Bulk Quantity
(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
Ten piece pack
Nickel plated brass
Quartz sand filled
Time delay design
This ten-pack is perfect for those who want to stock up on fuses. The nickel plated brass terminals ensure a strong electrical connection for reliable performance.
Pros
- Large ten piece pack
- Nickel plated terminals
- Sand filled safety
- Fits Whirlpool
- High customer rating
Cons
- Storage needed
- Check model first
We may earn a commission when you buy through this link, at no additional cost to you.
The quartz sand filled body provides excellent safety by preventing arcing. It serves various electronic devices and is a universal replacement for many microwave models.
Managing ten pieces requires some storage space to keep them organized. However, having a large supply ensures you are prepared for any unexpected failures.
Choose this if you need a large batch for repairs or stocking. It combines quality materials with a high volume of replacement units.
Premium Terminals
Nickel plated brass terminals resist corrosion. This ensures a secure connection that lasts through repeated use.
High Volume
The large quantity means you can fix multiple appliances. Stock up to avoid waiting for replacements when needed.
We may earn a commission when you buy through this link, at no additional cost to you.
8. BOJACK Microwave Fuse 20AL250V – Best High Quantity Kit
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
6x30mm size
Plastic storage case
Time delay fuses
This BOJACK kit includes twenty fuses packed in a convenient plastic storage case. It is designed for long-term use and offers high quality slow-blow protection.
Pros
- 20 piece quantity
- Plastic storage case
- High quality build
- Time delay protection
- Consistent specs
Cons
- High upfront cost
- May be too many
We may earn a commission when you buy through this link, at no additional cost to you.
The case keeps the fuses organized and safe from damage when stored. This makes it easy to access the right fuse quickly when a repair is needed.
Buying twenty at once is a significant investment but saves money over time. Ensure you have space for the case and potential future storage of spares.
Choose this if you run a small repair business or want ample spares. It balances quality construction with practical packaging for organized storage.
Organized Storage
The included plastic storage case keeps fuses safe. This prevents loss and damage to your replacement parts.
Long-term Use
High quality materials ensure a long service life. Reliable for repeated use in various repair scenarios.
We may earn a commission when you buy through this link, at no additional cost to you.
9. Litoexpe 20-Pack – Best Risk-Free Value
Litoexpe 20-Pack 20A 250V Ceramic Time Delay Fuses
20 piece count
Arc flashover prevention
Carrying case included
High amperage loads
The Litoexpe pack includes twenty time delay fuses with a carrying case for safety. It offers a risk-free shopping experience with a thirty-day return and replacement service.
Pros
- Thirty-day return policy
- Arc flashover prevention
- High amperage capacity
- Ceramic body safety
- Carrying case included
Cons
- Verify voltage carefully
- Check current rating
We may earn a commission when you buy through this link, at no additional cost to you.
The ceramic construction prevents arc flashover and reduces the risk of bursting. This greatly lowers the chance of an overload causing fire in your appliance.
You must confirm the size and voltage before ordering to avoid mismatches. Customer support is available if you have any questions about compatibility.
Ideal for those who want value and safety assurance with their purchase. The carrying case makes it easy to transport your fuse supply.
Arc Prevention
Ceramic body reduces risk of bursting compared to glass. It prevents hot metal spray during severe overloads for safety.
Risk-Free Shopping
Offers a thirty-day return and replacement service. This ensures you are protected if the product does not fit.
We may earn a commission when you buy through this link, at no additional cost to you.
10. Pack of 5 – Best OEM Standard Fit
(Pack of 5) Microwave Replacement Fuse, 20A, 250V, Ceramic Fuse, Compatible and Universal Replacement for WB27X10388 and Other Microwaves
Five piece pack
OEM standard fit
Multiple replacements
Fast shipping
This five-pack is built to meet OEM standards and often exceeds requirements for performance. It is compatible with a wide range of part numbers for universal fit.
Pros
- Guaranteed OEM standard
- Exceeds OEM requirements
- Wide part replacements
- Five piece quantity
- Fast shipping
Cons
- Check model numbers
- Basic ceramic build
We may earn a commission when you buy through this link, at no additional cost to you.
The fast shipping option ensures you get your repair parts quickly. This minimizes downtime for your kitchen appliance so you can cook again soon.
Always check the specific model numbers to ensure a perfect match for your unit. While the ceramic build is standard, it offers reliable safety for daily use.
Choose this if you want a quick and reliable replacement for your microwave. The OEM standard guarantee helps you fix your unit with confidence.
OEM Standards
Guaranteed to exceed OEM requirements for performance. This ensures a perfect fit and reliable operation.
Wide Compatibility
Replaces many part numbers like WB27X10388. It works for various major appliance brands.
We may earn a commission when you buy through this link, at no additional cost to you.
Buying Guide – How to Choose the Best 20A 250V Ceramic Fuses for Microwave Ovens
Selecting the right fuse involves checking technical specifications, build quality, and compatibility to ensure safe and effective operation.
Voltage and Amperage
Always match the voltage and amperage rating of your old fuse exactly. Most microwave ovens require a 20A 250V fuse to protect the high voltage circuitry correctly.
Verify both numbers on the ceramic casing to avoid electrical hazards or equipment damage.
Physical Dimensions
The fuse must fit the physical holder in your microwave without force. Most use a 6 by 30 millimeter size, but some units may vary slightly.
Measure the diameter and length of your old fuse before buying to guarantee a fit.
Blow Speed
Microwave fuses should be slow-blow or time-delay types. This allows the appliance to handle the initial surge of current at startup without blowing immediately.
Select a fuse that explicitly states slow-blow or time-delay in the product title.
Material Quality
High-quality ceramic bodies filled with sand or quartz are safer than glass. They reduce the risk of explosion and prevent arc flashover during failures.
Look for high-purity sand filling as a sign of robust insulation.
Brand Compatibility
Ensure the product description lists compatibility with your microwave brand. Many are designed as universal replacements for GE WB27X10388 and similar models.
Check part numbers carefully to avoid buying the wrong fit.
Pack Quantity
Buying a pack of multiple fuses offers better value and preparedness. A single fuse might not be enough if you need spares or plan to repair other appliances.
Consider five or ten packs to save money on future replacements.
Safety Certifications
Products with certifications like CSA or UL provide added assurance of safety. They indicate the fuse meets specific testing standards for household use.
Prioritize certified products to minimize risk in your home.
Warranty and Support
Some brands offer lifetime or limited warranties on their replacement parts. This can help if the fuse fails prematurely due to manufacturing defects.
Check the seller's return policy to ensure you are covered.
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 repair to avoid shock hazards.
Locate the fuse holder near the power cord or control panel and carefully remove the old blown fuse using insulated pliers.
Install the new ceramic fuse by inserting it into the holder and ensuring a snug fit before restoring power to the unit.
Frequently Asked Questions
How do I know if my microwave fuse is blown?
A blown fuse will often stop the microwave from turning on or heating food. You can check the glass tube to see if the metal wire inside is broken or melted.
Can I replace a 20A fuse with a different amperage?
No, you should always use the exact same amperage rating. Using a higher rating can cause electrical fires while a lower rating will blow frequently.
Why does my new fuse keep blowing after replacement?
This often indicates a deeper issue such as a faulty magnetron, diode, or wiring. You may need to check these components for shorts.
Is a ceramic fuse safer than a glass fuse for microwaves?
Ceramic fuses are generally safer because they do not shatter like glass. They are also better at handling high heat and preventing arc flash.
How long does it take to replace a microwave fuse?
For most people, the process takes about five to fifteen minutes. It is a simple DIY task that requires basic tools and safety precautions.
Do all microwaves use the same type of fuse?
While many use a 20A 250V ceramic fuse, some models vary. Always check your user manual or the old fuse specifications before buying a new one.
Can I repair a blown fuse myself or must I replace it?
You must replace a blown fuse as it cannot be repaired. The internal wire is permanently broken to cut the circuit during an overload.
What happens if I touch the fuse with my bare hands?
It is best to handle the fuse with gloves to avoid transferring oils that might degrade the ceramic surface. Always turn off the power before touching internal parts.
Final Thoughts on Choosing the Best 20A 250V Ceramic Fuses for Microwave Ovens
The ten products reviewed offer a range of options from budget packs to premium certified safety fuses. Each provides reliable protection for your microwave circuitry when chosen correctly.
Prioritize the correct amperage and slow-blow features to ensure your appliance functions safely. Compatibility with your specific microwave model is essential for a smooth repair.
Prices and availability can change so check the current listing details before making your purchase. Proper installation will restore your microwave to full functionality quickly.