HiQltyla 20A 250V Microwave Fuse, 6x30mm Slow-Blow Ceramic Cartridge, 2Pcs
4.6Editor score
Certified safety standards
Arc-resistant construction
Affordable two-pack value
In this guide
Microwave ovens rely on specific safety components to operate correctly and protect your home from electrical hazards. Among these, the 20A 250V ceramic fuse plays a critical role in preventing damage from overcurrent and short circuits.
We have carefully evaluated the leading replacement options available today, focusing on build quality, compatibility with major brands, and safety certifications. Our analysis ensures you find a reliable part that restores functionality without compromising safety.
Each selection in this list highlights key specifications and real-world performance traits. Please note that product availability and pricing can change frequently, so always verify details before making your final purchase decision.
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 microwave compatibility
High-quality quartz sand fill
BlueStars Upgraded 5-Pack WB27X10388 20A 20 Amp 250V Ceramic Microwave Fuse
4.5Editor score
Lifetime protection warranty
Wear-resistant end caps
Quick five-minute installation
Top 10 Best 20A 250V Ceramic Fuses for Microwave Ovens in 2026 Compared
The following table provides a side-by-side comparison of all ten selected fuses, highlighting their key specifications and intended use cases to streamline your selection process.
ProductsSpecificationsEditor scorePrice
Editor's Choice
BOJACK Microwave Fuse 20a Ceramic Fuse
20 Amp current rating
250 Volt voltage rating
6x30mm physical dimensions
Slow-blow time delay type
4.6Editor score
Editor's Choice
Frienda 20 Pcs Microwave Fuse
20 Amp current rating
250 Volt voltage rating
6.35x30mm dimensions
Twenty piece bulk pack
4.7Editor score
Best Budget
HiQltyla 20A 250V Microwave Fuse
20 Amp current rating
250 Volt voltage rating
6x30mm physical dimensions
CSA safety certification
4.6Editor score
BlueStars Upgraded 5-Pack WB27X10388
20 Amp current rating
250 Volt voltage rating
6x30mm physical dimensions
Lifetime protection warranty
4.5Editor score
5-Pack 20 amp Microwave Fuse 20a 250v
20 Amp current rating
250 Volt voltage rating
0.24×1.2 inch size
Universal replacement design
4.5Editor score
Microwave Fuse 20 Amp 250V Ceramic
20 Amp current rating
250 Volt voltage rating
6mmx32mm dimensions
Six piece bulk pack
4.4Editor score
(Pack of 10) 20 Amp 250V Microwave Fuse
20 Amp current rating
250 Volt voltage rating
6x30mm physical dimensions
Ten piece quantity pack
4.6Editor score
BOJACK Microwave Fuse 20AL250V 6x30mm
20 Amp current rating
250 Volt voltage rating
6x30mm physical dimensions
Twenty piece storage case
4.6Editor score
Litoexpe 20-Pack 20A 250V Ceramic Time Delay Fuses
20 Amp current rating
250 Volt voltage rating
6x30mm physical dimensions
Carrying case included
4.7Editor score
(Pack of 5) Microwave Replacement Fuse
20 Amp current rating
250 Volt voltage rating
Ceramic line fuse type
Five piece quantity pack
4.7Editor score
1. BOJACK Microwave Fuse 20a Ceramic Fuse 20 Amp 250V Slow-Blow Compatible and Universal Replacement for WB27X10388 and Other Microwaves – Best Overall 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
20 Amp current rating
250 Volt voltage rating
6x30mm dimensions
Slow-blow design
This BOJACK fuse is designed as a direct replacement for many common microwave models, particularly those requiring a 20A 250V rating. With a strong customer rating, it stands out for its reliability and adherence to standard dimensions.
Pros
- High quality construction
- Compatible with GE models
- Reliable slow-blow feature
- Protects circuitry effectively
- Reasonable value for price
Cons
- Single unit packaging
- Check size before buying
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The slow-blow ceramic design is crucial for microwaves because it accommodates the initial power surge when the unit starts up without blowing prematurely. This ensures that the fuse only interrupts power during genuine faults like short circuits or overheating.
While it performs exceptionally well, users should verify their existing fuse dimensions before ordering since slight variations can occur between manufacturers. The single pack means you might need to buy extra units if you anticipate future replacements.
If you own a GE or compatible microwave that has lost power, this fuse offers a straightforward and effective solution to restore functionality safely. It is a highly recommended choice for most standard repair scenarios.
Superior Ceramic Construction
The high-quality ceramic tube resists heat and electrical stress, ensuring long-term stability within the microwave's high-voltage environment.
Universal Compatibility
This fuse is engineered to fit a wide range of models beyond just GE, making it a versatile option for various household appliances.
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2. Frienda 20 Pcs Microwave Fuse, 20a 250v Slow-Blow Ceramic – Top Rated 20A 250V Ceramic Fuses for Microwave Ovens
Frienda 20 Pcs Microwave Fuse, 20a 250v Slow-Blow Ceramic
20 Amp current rating
250 Volt voltage rating
6.35x30mm dimensions
20 piece quantity
Frienda offers a substantial twenty-pack of ceramic fuses, making it an ideal choice for homeowners who want spare parts on hand. The high rating reflects consistent quality and reliable performance across multiple units.
Pros
- Excellent bulk value
- Durable ceramic tube
- Safe sand-filled design
- Compatible with GE Kenmore
- High customer satisfaction
Cons
- May be too many for one repair
- Verify size carefully
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Each fuse is filled with sand to prevent glass fragments from scattering if the fuse blows, enhancing safety during replacement. The slow-acting characteristic ensures that normal startup surges do not trigger false interruptions.
The large quantity is beneficial for those who service multiple appliances or prefer having backups, but it might be excessive for a single immediate fix. Ensure the dimensions match your specific microwave model before proceeding with installation.
For long-term preparedness and cost efficiency, this bulk pack is a smart investment. It provides peace of mind knowing you have reliable replacement parts available whenever a future electrical issue arises.
Enhanced Safety Features
The sand-filled ceramic tube minimizes the risk of explosive fragments, protecting users from potential hazards during fuse failure.
Versatile Brand Support
Compatibility with both GE and Kenmore models ensures this fuse is a practical solution for a wide variety of kitchen appliances.
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3. HiQltyla 20A 250V Microwave Fuse, 6x30mm Slow-Blow Ceramic Cartridge, 2Pcs – Best Value 20A 250V Ceramic Fuses for Microwave Ovens
HiQltyla 20A 250V Microwave Fuse, 6x30mm Slow-Blow Ceramic Cartridge, 2Pcs
20 Amp current rating
250 Volt voltage rating
6x30mm dimensions
CSA certified
HiQltyla provides a cost-effective solution with a two-pack of ceramic fuses, perfect for immediate replacement needs without breaking the bank. The CSA certification adds a layer of trust regarding safety and electrical standards.
Pros
- Affordable two-pack
- CSA safety certified
- Quartz sand filled
- Reliable slow-blow action
- Good for basic repairs
Cons
- Limited warranty period
- Check specifications closely
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The ceramic body filled with quartz sand helps to extinguish arcs safely when the fuse operates, reducing the risk of fire or damage to surrounding components. This design is standard for high-reliability applications.
While the packaging is smaller than bulk options, it offers a practical balance between quantity and cost for most single-unit repairs. Always double-check your fuse size to ensure it fits perfectly before installation.
For those seeking a budget-friendly yet safe option, this fuse delivers excellent performance. It is a solid choice for maintaining your microwave's safety systems without overspending on premium branding.
Reliable Safety Certification
CSA certification confirms that the fuse meets rigorous safety and performance standards, ensuring safe operation in your home.
Smart Packaging
A two-pack ensures you have a backup available, so you do not need to wait for shipping if the second fuse is ever needed.
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4. BlueStars Upgraded 5-Pack WB27X10388 20A 20 Amp 250V Ceramic Microwave Fuse – Best Durability 20A 250V Ceramic Fuses for Microwave Ovens
BlueStars Upgraded 5-Pack WB27X10388 20A 20 Amp 250V Ceramic Microwave Fuse
20 Amp current rating
250 Volt voltage rating
6x30mm dimensions
Lifetime warranty
BlueStars offers a premium 5-pack option with a lifetime protection warranty, giving customers exceptional confidence in the product's longevity and quality. The inclusion of high-purity quartz sand ensures robust insulation properties.
Pros
- Lifetime protection plan
- Five pack value
- Wear-resistant caps
- High purity quartz sand
- Easy installation guide
Cons
- Check part number precisely
- Price higher than budget
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The wear-resistant end caps are designed to maintain a secure fit and prevent degradation over time, which can happen with cheaper materials. This attention to detail contributes to the overall reliability of the fuse.
While it comes at a higher price point than basic options, the lifetime warranty and five-pack quantity provide excellent value for frequent users or households with multiple appliances. Always verify the part number to ensure compatibility.
If you want peace of mind with every repair, this option delivers top-tier support and product assurance. It is particularly suitable for those who prioritize long-term reliability and comprehensive customer service.
Lifetime Protection Guarantee
Enjoy a lifetime warranty on the product, ensuring that you are covered for any defects or issues that arise.
Premium Materials
High-quality quartz sand and durable caps are used to maximize insulation and physical resilience during operation.
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5. 5-Pack 20 amp Microwave Fuse 20a 250v, 0.24 x 1.2 inch for GE WB27X10388 – Reliable Replacement 20A 250V Ceramic Fuses for Microwave Ovens
5-Pack 20 amp Microwave Fuse 20a 250v, 0.24 x 1.2 inch for GE WB27X10388
20 Amp current rating
250 Volt voltage rating
0.24×1.2 inch size
5 piece pack
This five-pack offers a direct universal replacement solution, specifically mentioning compatibility with GE models like WB27X10388. It provides a convenient middle ground between single units and bulk packs.
Pros
- Direct universal replacement
- Compatible with many brands
- Durable ceramic tube
- Prevents further damage
- Quick installation process
Cons
- Limited brand documentation
- Verify size before order
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The heavy-duty ceramic construction and high-purity quartz sand inside ensure excellent insulation and stability, which helps to prevent internal shorts and overcurrent damage. This design focuses on maintaining the appliance's safety.
Users can easily install this fuse by turning off power and swapping the old unit. The five-pack allows for spares, which is beneficial if you have multiple microwaves or plan to keep a spare handy.
For a balance of quality and quantity, this option is highly practical. It effectively restores microwave function and protects against electrical hazards with a straightforward and affordable approach.
Multi-Brand Support
Designed to work with Whirlpool, Kenmore, KitchenAid, and more, this fuse fits a broad range of common microwave models.
Safety First Design
The fuse quickly disconnects power during overloads to protect the microwave's internal circuit from further damage.
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6. 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 – Versatile 20A 250V Ceramic Fuses for Microwave Ovens
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
20 Amp current rating
250 Volt voltage rating
6mmx32mm dimensions
6 piece quantity
This six-pack provides a reliable slow-blow fuse designed to handle the inrush current typical of microwave startups. It is built to be a direct replacement for specific GE part numbers and compatible with others.
Pros
- Slow-blow safety design
- Premium ceramic material
- Heat resistant body
- Great for DIY repairs
- Bulk quantity value
Cons
- Check dimensions carefully
- Verify old fuse rating
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The premium ceramic construction offers excellent heat resistance and insulation, ensuring that the fuse remains stable even under high electrical stress. This is essential for preventing potential fires or component damage.
With six units included, you have plenty of spares to keep in your tool kit for future needs. This reduces the need for frequent ordering and makes it convenient for homeowners who perform regular maintenance.
For DIY enthusiasts looking for a trustworthy repair option, this pack offers a solid combination of safety and convenience. It simplifies the process of restoring your appliance without professional assistance.
Heat Resistant Build
High-quality ceramic ensures the fuse can withstand heat and electrical stresses inherent in microwave oven environments.
DIY Friendly
Simple replacement steps make it easy for non-professionals to fix their appliance quickly and safely.
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7. (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 – Bulk Value 20A 250V Ceramic Fuses for Microwave Ovens
(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
20 Amp current rating
250 Volt voltage rating
6x30mm dimensions
10 piece pack
This ten-pack provides a substantial supply of slow-blow time delay ceramic fuses, making it ideal for those who want plenty of backups. The construction includes high-quality materials like alloy and nickel-plated brass.
Pros
- High value ten pack
- Ceramic body with sand
- Alloy and brass contacts
- Universal appliance support
- Effective overcurrent protection
Cons
- Large quantity may be excessive
- Verify model compatibility
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The inclusion of quartz sand inside the ceramic tube helps to prevent arcs and reduces the risk of explosion if the fuse blows under high pressure. This design prioritizes user safety and system stability.
The universal replacement aspect ensures it works across various brands, which is useful for general household maintenance. While ten might be more than needed for one repair, having spares prevents downtime later.
For those who value preparation and long-term convenience, this bulk pack is an excellent investment. It offers reliable protection and performance for your microwave and other compatible electronic devices.
Durable Metal Contacts
Nickel-plated brass and alloy end caps ensure a secure electrical connection and resist corrosion over time.
Versatile Application
These fuses can protect various electronic devices beyond just microwaves, adding to their utility value.
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8. 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) – Extensive 20A 250V Ceramic Fuses for Microwave Ovens
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 Amp current rating
250 Volt voltage rating
6x30mm dimensions
20 piece storage
Offering a full twenty-pack of high-quality slow-blow ceramic fuses, this option is perfect for workshops or households needing extensive backup supplies. The fuses come packed in a plastic storage case for easy organization.
Pros
- Huge twenty pack supply
- Plastic storage case included
- High quality ceramic
- Slow-blow reliability
- Good for maintenance teams
Cons
- Very large quantity
- Verify size precisely
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The ceramic tube design with time-delay characteristics ensures that brief power spikes do not cause unnecessary outages. This maintains the safety of your appliance while allowing normal operation cycles to complete successfully.
With such a large quantity, you will have spares for years to come, eliminating the need for frequent purchases. Just ensure the 6x30mm size matches your specific microwave requirements before installation.
For those who prioritize having a permanent spare stock, this BOJACK pack is a superior choice. It combines value, safety, and convenience in a single purchase.
Organized Storage
Included plastic storage case keeps your fuses safe, dry, and easy to find when you need them.
Consistent Performance
Every unit in the pack is designed to the same high standards, ensuring uniform reliability across all fuses.
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9. Litoexpe 20-Pack 20A 250V Ceramic Time Delay Fuses – High Quantity 20A 250V Ceramic Fuses for Microwave Ovens
Litoexpe 20-Pack 20A 250V Ceramic Time Delay Fuses
20 Amp current rating
250 Volt voltage rating
6x30mm dimensions
20 piece count
This twenty-pack offers an extensive supply of ceramic time delay fuses, designed to handle high-amperage loads like those in microwave ovens. The construction includes nickel-plated brass and quartz sand for added durability.
Pros
- Large quantity pack
- Nickel plated brass ends
- Reduces arc flashover
- Carrying case included
- Risk-free shopping service
Cons
- Verify specifications carefully
- May be too much for one
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The ceramic body is specifically designed to prevent arc flashover and reduce the risk of bursting compared to glass alternatives. This makes it a safer choice for protecting your home and appliances from electrical hazards.
A carrying case is included to store the fuses neatly, which is a thoughtful addition for bulk packs. The seller also provides a 30-day risk-free service, adding to the confidence in the purchase.
For those who need a large volume of reliable fuses for various projects or long-term backups, this option is ideal. It delivers strong value and safety without compromising on build quality.
Reduced Overload Risk
Ceramic construction reduces the risk of fire by preventing hot metal spray during sudden overloads.
Convenient Storage
The included carrying case keeps all your fuses organized and easy to access when needed.
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10. (Pack of 5) Microwave Replacement Fuse, 20A, 250V, Ceramic Fuse, Compatible and Universal Replacement for WB27X10388 and Other Microwaves – Comprehensive 20A 250V Ceramic Fuses for Microwave Ovens
(Pack of 5) Microwave Replacement Fuse, 20A, 250V, Ceramic Fuse, Compatible and Universal Replacement for WB27X10388 and Other Microwaves
20 Amp current rating
250 Volt voltage rating
Ceramic line fuse
5 piece pack
This five-pack of replacement fuses meets OEM standards and guarantees to exceed requirements for various microwave models. It covers a wide range of part numbers including WB27X10388, ensuring high compatibility.
Pros
- OEM standard fit
- Compatible with many part numbers
- Fast shipping available
- Universal replacement
- Strong customer rating
Cons
- Verify exact model number
- Check part compatibility
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The ceramic line fuse design provides robust protection for the appliance's electrical system. Users appreciate the fast shipping and the assurance of a reliable product that restores functionality efficiently.
While it is a standard five-pack, the extensive list of compatible part numbers makes it a versatile choice. Always cross-reference your old fuse number to ensure it matches one of the supported replacements.
For those seeking a straightforward and reliable fix for their microwave, this option offers a high degree of certainty. It simplifies the replacement process with a trusted product designed for longevity.
Extensive Compatibility
Replaces a vast list of part numbers across different brands, ensuring a fit for most common models.
OEM Quality Standards
Designed to meet or exceed original equipment manufacturer standards for performance and safety.
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Buying Guide – How to Choose the Best 20A 250V Ceramic Fuses for Microwave Ovens
Selecting the right fuse involves understanding technical specifications and safety features to ensure a proper match for your microwave model.
Current and Voltage Rating
Always match the exact current (Amps) and voltage (Volts) rating of your old fuse. For most microwaves, a 20A 250V rating is standard, but using an incorrect rating can lead to safety hazards or failure to protect the circuit.
Verify the numbers printed on your old fuse before purchasing to ensure a perfect match.
Fuse Type
Microwave ovens require slow-blow or time-delay fuses to handle the initial power surge when the magnetron starts. Fast-blow fuses might trip unnecessarily during normal operation.
Check the product description to confirm it is a slow-blow ceramic fuse designed for appliance use.
Physical Dimensions
Ceramic fuses come in standard sizes like 6x30mm, but slight variations can exist. Measure your existing fuse to ensure it will fit securely in the holder without forcing it.
Proper fit is essential for maintaining a safe electrical connection.
Material Quality
High-quality ceramic tubes filled with quartz sand provide better insulation and arc suppression compared to glass alternatives. This material choice enhances safety by reducing the risk of fragments during a fuse blow.
Look for products that specify high-purity quartz sand and durable end caps.
Brand Reputation
Reputable brands often adhere to stricter manufacturing standards and provide reliable safety certifications. This reduces the risk of defects and ensures consistent performance over time.
Check customer reviews and brand history to gauge reliability.
Safety Certifications
Look for fuses that carry certifications from recognized safety organizations like CSA or UL. These indicate that the product has been tested for electrical safety and performance.
Certification ensures the fuse meets industry standards for safe operation.
Packaging and Quantity
Consider how many fuses you need at once. Single units are fine for immediate repairs, while multi-packs offer better value and backup options for future needs.
Evaluate your household needs to decide between single or bulk options.
Warranty and Support
Some manufacturers offer warranties or return policies that can protect your purchase if the fuse is defective. This adds a layer of assurance to your investment.
Check the seller's warranty details before buying to ensure you have recourse if needed.
How to Use and Care for Your 20A 250V Ceramic Fuses for Microwave Ovens
Before installing a new fuse, always unplug your microwave to eliminate any risk of electrical shock. Safety should always be your top priority when handling electrical components.
Locate the fuse holder, which is usually near the power entry point on the back or side of the microwave. Remove the old fuse carefully and inspect the area for any signs of damage or loose wires.
Insert the new fuse into the holder ensuring it fits snugly. Reassemble the microwave, plug it back in, and test it to confirm proper operation. Regular inspections can help prevent future electrical issues.
Frequently Asked Questions
How do I know if I need to replace my microwave fuse?
If your microwave suddenly stops turning on or shows no signs of power despite being plugged into a working outlet, the fuse may have blown. You can check this by visually inspecting the fuse for a broken wire or burnt appearance.
Can I use a glass fuse instead of a ceramic one?
It is recommended to use ceramic fuses as they offer better heat resistance and safety features like sand filling. Glass fuses are more fragile and may not handle the specific conditions inside a microwave as well.
Why did my new fuse blow immediately after installation?
If a new fuse blows right away, it often indicates a deeper problem with your microwave, such as a faulty magnetron or high voltage diode. You may need professional repair to fix the root cause.
Are these fuses universal for all microwave brands?
Most 20A 250V ceramic fuses are designed to be universal replacements for common part numbers like WB27X10388. However, always verify compatibility with your specific model before purchasing.
How long does a ceramic fuse typically last?
A high-quality ceramic fuse can last for many years under normal operating conditions. They typically only fail due to electrical faults or surges rather than regular wear and tear.
Do I need to buy multiple fuses?
Buying a multi-pack is a smart idea to have spares on hand for future needs. It saves you time and money compared to ordering a single fuse every time one needs replacement.
Final Thoughts on Choosing the Best 20A 250V Ceramic Fuses for Microwave Ovens
We have reviewed ten top-rated fuses that offer reliability and safety for microwave repairs. Whether you need a single unit or a bulk pack, there is an option suited to your specific needs.
Prioritize safety certifications and correct specifications to ensure your microwave operates safely. Choosing the right fuse can extend the life of your appliance and prevent electrical hazards.
Prices and availability can change, so check the current listings before purchasing. Always verify your fuse requirements to guarantee a successful repair.