5-Pack 20 amp Microwave Fuse
4.5Editor score
Direct replacement for GE part
Heavy-duty ceramic construction
Universal fit for most brands
In this guide
Microwave ovens rely on critical safety components like ceramic fuses to protect internal circuitry from dangerous electrical surges. Choosing the right 20A 250V fuse ensures your appliance runs safely without unnecessary interruptions during daily cooking tasks.
We evaluated ten top-rated ceramic fuses based on compatibility, build quality, and safety certifications. Our analysis focuses on slow-blow designs that handle inrush current while providing reliable protection against overloads and short circuits in various microwave brands.
Each selection highlights specific features like quartz sand filling and ceramic tube construction for enhanced durability. Please verify your existing fuse specifications before purchasing since prices and availability may change depending on current market conditions.
Top 3 Picks for Best 20A 250V Ceramic Fuses for Microwave Ovens
BOJACK Microwave Fuse 20a Ceramic Fuse
4.6Editor score
20A 250V slow-blow
Compatible with GE WB27X10388
6x30mm universal dimensions
Frienda 20 Pcs Microwave Fuse
4.7Editor score
20-piece bulk package value
Quartz sand filled safety tube
Resists surge current damage
Top 10 Best 20A 250V Ceramic Fuses for Microwave Ovens in 2026 Compared
Compare all ten selected 20A 250V ceramic fuses side-by-side to see how they differ in pack quantity, compatibility, and specific construction features for your microwave repair needs.
ProductsSpecificationsEditor scorePrice
Editor's Choice
BOJACK Microwave Fuse 20a
20A 250V rating
6x30mm size
Slow-blow type
GE WB27X10388 compat
4.6Editor score
Editor's Choice
Frienda 20 Pcs Microwave Fuse
20 count pack
6x30mm size
Slow-blow ceramic
GE WB27X10388 compat
4.7Editor score
Best Premium
HiQltyla 20A 250V
2 pack quantity
Quartz sand filled
CSA certified safety
6x30mm size
4.6Editor score
BlueStars Upgraded 5-Pack
5 pack quantity
Quartz sand insulation
Lifetime protection
6x30mm size
4.5Editor score
5-Pack 20 amp Microwave
5 pack quantity
Universal replacement
High purity sand
6x30mm size
4.5Editor score
Microwave Fuse 6PCS
6 pack quantity
Slow-blow design
Premium ceramic build
6x30mm size
4.4Editor score
Pack of 10 20 Amp
10 pack quantity
Slow-blow time delay
Quartz sand filled
6x30mm size
4.6Editor score
BOJACK 20 Pcs Fuse
20 pack quantity
Slow-blow ceramic
Plastic storage case
6x30mm size
4.6Editor score
Litoexpe 20-Pack
20 pack quantity
Carrying case
Arc flashover prevent
6x30mm size
4.7Editor score
Pack of 5 Replacement
5 pack quantity
Fast blow fuse
Fits OEM standards
6x30mm size
4.7Editor score
1. BOJACK Microwave Fuse – Best Overall Choice
BOJACK Microwave Fuse 20a
20A 250V rating
6x30mm dimensions
Slow-blow technology
Universal compatibility
This BOJACK fuse is a top-rated replacement designed for microwave repair needs. With a 4.6 rating, it offers a reliable slow-blow design that protects sensitive circuitry from surges without blowing prematurely.
Pros
- Direct GE replacement
- High quality ceramic
- Safe slow-blow
- Reliable performance
- Easy installation
Cons
- Single unit pack
- Basic packaging
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The 20A 250V rating matches standard microwave specifications perfectly. Its ceramic tube construction ensures durability against high heat and electrical stress during operation cycles. It is explicitly compatible with GE WB27X10388 models.
Users note that it fits perfectly without modification. The slow-blow feature handles the initial power surge when the microwave starts up. This prevents false trips that occur with fast-blow fuses in high-amperage appliances.
Ideal for homeowners needing a straightforward fix for a blown fuse. If you need a quick and verified replacement for GE microwaves, this option provides trusted safety standards at a reasonable cost point.
Reliable Safety Features
The slow-blow design specifically protects against temporary inrush currents that happen at startup. This prevents unnecessary replacements caused by normal operational surges in microwaves.
Perfect Dimensions
Measuring exactly 6x30mm, this fuse fits standard fuse holders found in most microwave brands. It ensures a snug fit that maintains electrical contact integrity over time.
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2. 5-Pack 20 amp Microwave – Best Budget Value
5-Pack 20 amp Microwave
20A 250V rating
5 pack quantity
Universal replacement
Heavy-duty ceramic
This five-pack option offers exceptional value for users who need spare parts on hand. At a low price point, it provides five reliable ceramic fuses that fit most GE, Whirlpool, and Kenmore microwave models.
Pros
- Five fuses included
- Universal fit brands
- Cost-effective pack
- Durable sand filled
- Fast shipping
Cons
- Generic branding
- No case included
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Each fuse features a heavy-duty ceramic tube filled with high-purity quartz sand. This construction ensures excellent insulation and stability, preventing arc flashes during overload conditions while maintaining safety standards.
The packaging is simple but functional. Users appreciate having multiple units available for future repairs or testing different circuits. It is a practical choice for DIY enthusiasts managing multiple appliance repairs.
If you want to stock up without spending too much, this pack is ideal. The universal compatibility makes it a safe bet for replacing blown fuses in various microwave brands without precise model verification.
Cost Effective Packaging
Buying five fuses at once reduces the cost per unit significantly compared to single purchases. It ensures you have a spare available if a subsequent component fails.
Universal Fitment
The 6x30mm size is standard across many microwave manufacturers. This flexibility allows you to use these fuses for different brands like Amana, Magic Chef, and KitchenAid.
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3. Frienda 20 Pcs Microwave – Best Premium Bulk Pack
Frienda 20 Pcs Microwave
20 count pack
Slow-blow ceramic
Quartz sand filled
Resists surge current
This massive twenty-pack is perfect for repair shops or those with multiple microwaves. With a 4.7 rating, Frienda delivers a high-quality slow-blow ceramic fuse that safely interrupts circuits during dangerous overloads.
Pros
- Twenty units total
- High safety rating
- Fills bulk needs
- Safe sand fill
- Durable material
Cons
- Large quantity needed
- No storage case
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The ceramic tube is filled with quartz sand to prevent glass fragments and arc flashes when the fuse blows. This safety feature is crucial for protecting users from potential fire hazards during electrical failures.
It handles surge currents better than basic fuses. The slow-blow technology accommodates the power spikes that happen when magnetrons activate. This ensures the fuse only blows when there is a genuine fault.
For anyone needing long-term reliability and bulk quantity, this is the top choice. It balances safety, durability, and value effectively. Just ensure you have a safe place to store the extra units.
Enhanced Safety Design
The quartz sand inside prevents dangerous arc flashes when the fuse element melts. This reduces the risk of fire or hot spray compared to empty tube fuses.
Surge Current Resistance
Microwaves draw high current at startup. This slow-blow design withstands these surges without blowing, ensuring the fuse only trips during actual sustained overloads.
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4. HiQltyla 20A 250V – Best for Safety Certifications
HiQltyla 20A 250V
2 pack quantity
CSA certified safety
Quartz sand filled
6x30mm dimensions
HiQltyla focuses on safety standards with CSA certification. This two-pack includes ceramic fuses designed to withstand high heat and prevent arc flashes. It is a solid option for users prioritizing verified safety ratings.
Pros
- CSA certified safety
- Sand filled tube
- High quality material
- 1 year warranty
- Safe arc prevention
Cons
- Only 2 units
- Limited stock
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The quartz sand filling inside the ceramic tube ensures that if the fuse burns out, it does not produce glass fragments. This design choice reduces fire risks and keeps the appliance safer during failure events.
Users appreciate the 1-year warranty. It indicates manufacturer confidence in the product's longevity. The slow-blow feature protects circuitry during power surges while ensuring timely interruption of dangerous overcurrents.
Choose this if safety compliance is your main concern. The certification adds trust to aftermarket replacements. It is an excellent choice for those who want peace of mind regarding appliance safety standards.
Certified Safety Standards
CSA certification means the fuse meets strict safety guidelines for electrical components. This ensures it can handle the voltages and currents typical of microwave ovens safely.
Arc Prevention Technology
The sand inside suppresses arcs when the fuse blows. This prevents potential fire hazards that can occur with air-filled fuses during high-voltage short circuits.
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5. BlueStars Upgraded 5-Pack – Best for Protection
BlueStars Upgraded 5-Pack
5 pack quantity
Quartz sand insulation
Lifetime protection
High purity materials
BlueStars offers a five-pack designed to protect your microwave from dangerous power surges. The use of high-purity quartz sand ensures excellent insulation. This prevents the circuit from reconnecting after a fuse has blown.
Pros
- Lifetime protection
- High purity sand
- Ceramic tube body
- End caps durability
- Easy installation
Cons
- Generic packaging
- No case included
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The lifetime protection guarantee adds value beyond the physical product. It shows a commitment to quality. The durable end caps and ceramic tube ensure long-lasting performance even in high-heat microwave environments.
Installation is straightforward with this pack. It saves time compared to buying single units. Users report that the fit is precise for GE WB27X10388 models, making it a reliable replacement option.
Ideal for those who value warranty support. The lifetime coverage means any defects are handled. This makes it a great choice for repairing older microwaves where spare parts might be scarce or hard to find.
Superior Insulation
High-purity quartz sand prevents current reconnection after melting. This ensures the fuse stays blown and protects the rest of the circuit from further damage.
Lifetime Protection
The lifetime protection covers defects. This provides added security for your purchase. It reassures buyers that the product will perform as expected for its lifespan.
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6. Microwave Fuse 6PCS – Best for Versatility
Microwave Fuse 6PCS
6 pack quantity
Slow-blow design
Premium ceramic build
Universal brand fit
This six-pack offers a good balance between quantity and utility. It is designed to directly replace GE WB27X10388 but works with Whirlpool and Kenmore models too. This versatility makes it a convenient choice for many users.
Pros
- Six units included
- Wide brand compatibility
- Safe slow-blow
- Durable ceramic
- Easy DIY install
Cons
- No storage case
- Basic branding
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The slow-blow design handles temporary current surges safely. It ensures the fuse only blows during sustained overloads. This protects sensitive internal components like the magnetron from power spikes during normal operation.
Users find the ceramic build robust. The high-quality material withstands heat well. With six units, you have enough to fix one appliance and keep spares for future needs without extra trips to the store.
A solid choice for general household repairs. If you own multiple microwaves or expect to do maintenance yourself, this pack ensures you are prepared. It is a practical option for homeowners.
Direct Replacement Fit
This fuse fits GE WB27X10388 slots perfectly. It eliminates the need for modifications. The fit is secure and maintains electrical contact reliability.
DIY Friendly
Replacing the fuse is a simple DIY task. The six-pack ensures you have replacements ready. It saves money on professional repair calls for minor electrical issues.
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7. Pack of 10 20 Amp – Best for Repair Shops
Pack of 10 20 Amp
10 pack quantity
Slow-blow time delay
Quartz sand filled
Universal compatibility
Ten fuses in one pack is excellent for frequent repair work. This slow-blow design matches standard GE WB27X10388 requirements. The quartz sand filling provides safety by preventing dangerous arcs during failure events.
Pros
- Ten units included
- Fits many brands
- Safe sand fill
- Reliable performance
- Cost effective
Cons
- No case storage
- Generic packaging
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Each unit is built to handle high amperage safely. The time-delay feature ensures the fuse doesn't blow prematurely during startup surges. This protects your appliance from false triggers caused by normal current fluctuations.
Users find this pack very reliable for professional use. It offers good value for money compared to buying singles. The universal compatibility means fewer trips to different suppliers for different models.
If you repair appliances regularly, this quantity is practical. It ensures you never run out of common parts. The safety standards are met, making it a secure choice for client repairs or your own equipment.
Safe Quartz Sand Fill
The sand inside prevents arc flashovers. This reduces fire risk significantly. It is safer than air-filled glass fuses which can shatter and spray.
Professional Reliability
This fuse meets OEM standards. It performs reliably under load. Technicians prefer it for its consistent behavior and safety features.
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8. BOJACK 20 Pcs Fuse – Best for Bulk Storage
BOJACK 20 Pcs Fuse
20 count pack
Plastic storage case
Slow-blow ceramic
Universal fit
BOJACK provides a robust solution with twenty fuses and a plastic storage case. This keeps your inventory organized and protected. It is perfect for those who want to stock up heavily without managing loose parts.
Pros
- Twenty units total
- Includes storage case
- High reliability
- Safe slow-blow
- Durable build
Cons
- Large volume
- Basic branding
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The slow-blow ceramic design ensures safety during power surges. It protects internal microwave circuitry from damage. The case ensures the fuses remain clean and undamaged until you need them.
Users value the organization provided by the case. It prevents loose fuses from getting lost or damaged. This is particularly useful in workshops or homes with multiple appliance repair projects.
Ideal for long-term preparedness. Having twenty fuses ensures you are ready for any emergency. The brand is known for quality, making this a trusted choice for bulk purchases and storage.
Integrated Storage
The included plastic case organizes your inventory. It prevents loss and damage to the fuse elements. This adds value to the bulk purchase significantly.
Bulk Reliability
With twenty units, you have long-term supply. It ensures continuity in your repairs. You won't need to reorder frequently for common replacement tasks.
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9. Litoexpe 20-Pack – Best Safety Features
Litoexpe 20-Pack
20 count pack
Carrying case included
Arc flashover prevent
Time delay safety
Litoexpe emphasizes safety with a design that prevents arc flashovers. The 20-pack comes with a carrying case for easy storage. It is rated 4.7 stars for its quality and protection capabilities.
Pros
- Twenty units included
- Safety focus design
- Carrying case
- High rating
- Risk-free shopping
Cons
- Generic branding
- Large quantity
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The ceramic construction reduces fire risks. It handles high amperage loads safely. This makes it suitable for power tools and other high-power loads besides microwaves.
Users appreciate the risk-free shopping policy. If you have questions, support is available. This adds confidence to your purchase. It ensures you have help if installation issues arise.
Best for those prioritizing safety and support. The design reduces hot metal spray risks significantly. It is a strong option for households with children or pets where safety is paramount.
Arc Flashover Prevention
The ceramic body prevents electrical arcs from spreading. This is crucial for safety. It stops high-voltage arcs from causing secondary damage or fire.
Risk-Free Policy
The 30-day return policy gives peace of mind. If the part does not fit, you can return it. Support is responsive to technical questions.
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10. Pack of 5 Replacement – Best OEM Standard
Pack of 5 Replacement
5 pack quantity
Fits OEM standards
Fast blow fuse
Universal compatibility
This five-pack meets OEM standards and is compatible with WB27X10388. It is rated 4.7 stars for reliability. While it specifies fast blow, many users find it compatible with standard microwave needs.
Pros
- Five units included
- Fits OEM standards
- Reliable quality
- Fast shipping
- Universal fit
Cons
- Fast blow type
- Basic packaging
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The ceramic fuse ensures durable protection against overcurrents. It is designed for standard household appliances. Shipping is fast, making it convenient for urgent repairs that cannot wait.
Users appreciate the OEM compatibility. It fits slots precisely. The quality is consistent with manufacturer specifications. It is a solid choice for restoring older models that require specific ratings.
Good for those needing standard replacements. The fast blow feature may suit specific needs. Check your manual for exact type requirements before installing. It is generally a safe bet for general microwave repairs.
OEM Compatibility
This fuse is built to meet original equipment standards. It ensures proper fit in most slots. This reduces compatibility issues during installation.
Fast Shipping
Quick delivery helps restore your appliance fast. It reduces downtime. You can order and get it quickly to fix your microwave promptly.
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Buying Guide – How to Choose the Best 20A 250V Ceramic Fuses for Microwave Ovens
Selecting the right microwave fuse requires careful attention to electrical ratings, construction material, and packaging quantity. Follow these factors to ensure a safe and effective repair.
Electrical Ratings
Ensure the fuse matches your microwave's requirements exactly. Look for 20A and 250V specifications. Using a fuse with a lower amperage will cause it to blow unnecessarily, while a higher one may fail to protect the circuit from dangerous overloads. Always check the label on the old fuse or your user manual before purchasing a replacement.
Always match the amperage and voltage ratings to your appliance's specifications to ensure safety.
Slow-Blow vs. Fast-Blow
Slow-blow fuses are preferred for microwaves because they handle temporary inrush currents. These currents spike when the magnetron starts up. Fast-blow fuses might open during these normal surges. Verify your old fuse's type to avoid repeated failures during normal operation.
Choose slow-blow fuses for microwaves to prevent false trips during startup surges.
Construction Material
Ceramic fuses are superior to glass ones for high-power appliances. Ceramic withstands heat and prevents fire hazards during failure. Look for quartz sand filling which stops arcs from forming. Glass fuses can shatter and cause fire risks in high-voltage circuits.
Prioritize ceramic construction with sand fill to prevent fire hazards and arc flashes.
Pack Quantity
Consider buying packs of five or more if you have multiple appliances. Buying in bulk reduces cost per unit. It also ensures you have a spare when the first replacement blows. Single units are fine for one-off fixes but bulk packs offer better long-term value.
Bulk packs reduce costs and ensure you have spares for future microwave repairs.
Compatibility
Verify compatibility with your brand. While 6x30mm is standard, some models have unique holders. Check if the fuse replaces part numbers like WB27X10388. If unsure, compare the dimensions and brand lists provided by the seller.
Always verify brand compatibility and part number replacement to ensure proper fit.
Safety Certifications
Look for certifications like CSA or UL. These ensure the fuse meets strict safety standards. Certified fuses are tested for voltage resistance and heat tolerance. This reduces the risk of using a substandard part that could fail dangerously.
Select certified fuses to ensure they meet strict safety and voltage resistance standards.
Storage and Packaging
Good packaging protects the fuse before installation. Plastic cases keep them organized and prevent damage. If buying in bulk, ensure they are securely packed. Loose fuses can be damaged easily during shipping or storage.
Choose products with protective packaging like plastic cases to keep fuses safe.
Warranty and Support
Some brands offer warranties on their fuses. This indicates confidence in product quality. Check for return policies if the fuse is defective. Reliable customer support helps resolve fit issues quickly.
Check for warranty support to ensure confidence in product quality and returns.
How to Use and Care for Your 20A 250V Ceramic Fuses for Microwave Ovens
Before replacing a fuse, always unplug the microwave. Wait 10 minutes to let the capacitor discharge. This prevents electric shock. Remove the back panel to locate the fuse holder near the power cord. It is usually held by two small clips.
Carefully remove the old fuse and inspect it. If the metal strip inside is broken or the glass is blackened, it is blown. Insert the new fuse gently. Push it until it clicks into place. Ensure it is seated firmly before closing the panel.
Plug the microwave back in and test it. If it works, the repair is successful. If the fuse blows again immediately, there is a deeper electrical fault. Do not keep replacing fuses if this happens. Call a professional to check the magnetron or diode.
Frequently Asked Questions
What happens if I use a fuse with a higher amperage?
Using a fuse with a higher amperage rating than required can be dangerous. The fuse may not blow when it should, allowing excess current to damage the microwave's internal components. It could also cause a fire. Always match the original fuse's amperage rating exactly.
How do I know if my fuse is blown?
Visually inspect the fuse for damage. A blown fuse often shows a broken metal strip or a blackened tube. If your microwave stops heating entirely after power issues, the fuse might be the cause. Use a multimeter to test for continuity to be sure.
Why does my microwave keep blowing fuses?
If a fuse keeps blowing, there is likely a serious fault like a shorted magnetron or diode. Do not keep replacing the fuse as this can lead to fire. Unplug the microwave and call a professional repair technician to inspect the internal components.
Can I use a fast-blow fuse instead of slow-blow?
It is generally not recommended to replace a slow-blow fuse with a fast-blow one. Microwaves draw high inrush current at startup. A fast-blow fuse might blow immediately when you turn the microwave on, even if there is no real fault.
Are these fuses safe for Kenmore or Whirlpool microwaves?
Yes, many of these ceramic fuses are compatible with Kenmore and Whirlpool models. They are designed to replace part numbers like WB27X10388 which are widely used. Always check your model's specific fuse rating before buying to confirm compatibility.
Do these fuses come with a storage case?
Some packs include plastic storage cases while others come in simple bags. Bulk packs like the 20-piece options often have cases to organize parts. Check the product details if case storage is important for your workshop.
Final Thoughts on Choosing the Best 20A 250V Ceramic Fuses for Microwave Ovens
We reviewed ten top 20A 250V ceramic fuses to help you restore your microwave safely. The BOJACK fuse stands out for reliability while the Frienda pack offers the best bulk value. Each option ensures your appliance is protected against dangerous electrical faults.
Prioritize slow-blow designs with quartz sand filling to prevent fire hazards during failures. Always verify the 6x30mm dimensions and 20A rating match your existing part. Choosing a certified ceramic fuse provides peace of mind for long-term appliance safety.
Remember to check current prices and availability before buying since stock fluctuates. Verify your model number to avoid compatibility issues. With the right fuse, your microwave can continue to serve you safely for years to come.