5-Pack 20 amp Microwave Fuse
4.5Editor score
20A 250V Rating
Universal Microwave Fit
Ceramic Tube Build
In this guide
Microwave fuses are critical safety components that protect your appliance from electrical surges and overheating. Choosing the right fuse ensures your microwave operates safely and extends its overall lifespan significantly.
We evaluated ten top-rated microwave fuses based on compatibility, build quality, and customer feedback. Our list covers various brands and specifications to help you find the perfect replacement for your specific model.
Each pick highlights key features and installation tips to guide your decision. Keep in mind that product availability and pricing can change frequently, so verify details before purchasing your new fuse.
Top 3 Picks for Best Microwave Fuses
Frienda 20 Pcs Microwave Fuse
4.7Editor score
20 Piece Value Pack
Slow-Blow Protection
Safe Sand Filling
BOJACK Microwave Fuse 20a
4.6Editor score
GE WB27X10388 Fit
High Quality Ceramic
Reliable Circuit Guard
Top 10 Best Microwave Fuses in 2026 Compared
Below is a detailed side-by-side comparison of all ten selected microwave fuses. Review the specifications and ratings to identify which option best suits your repair needs and budget constraints.
ProductsSpecificationsEditor scorePrice
Editor's Choice
BOJACK Microwave Fuse 20a
20A 250V Rating
6x30mm Dimensions
Slow-Blow Type
GE WB27X10388 Compatible
4.6Editor score
Editor's Choice
Frienda 20 Pcs Microwave Fuse
20A 250V Rating
6.35x30mm Size
Slow Acting Blow
Sand Filled Safety
4.7Editor score
Best Premium
5-Pack 20 amp Microwave Fuse
20A 250V Rating
6x30mm Dimensions
Universal Replacement
Heavy-Duty Ceramic
4.5Editor score
2 Pack 20A 125 Volt Microwave Fuse
20A 125V Rating
5304509451 Replacement
GE Kenmore Frigidaire
Door Switch Tip
4.2Editor score
BOJACK Microwave Fuse 20a (10 Pack)
20A 250V Rating
6x30mm Dimensions
10 Piece Pack
GE WB27X10388 Fit
4.6Editor score
Pack of 10 20 Amp 250V Fuse
20A 250V Rating
6x30mm Dimensions
Quartz Sand Filled
Universal Compatibility
4.6Editor score
5304509451 Microwave Fuse (5 Pack)
20A 125V Rating
5304509451 Replacement
Frigidaire Kenmore Fit
Door Switch Warning
4.1Editor score
Pack of 4 Microwave Oven Door Switch & Fuse
20A 250V Fuse
KW3A Door Switch
Plastic Grey Switch
105 Degree Res
4.4Editor score
10Pcs 5304509451 20A 125V Fuses
20A 125V Rating
WB27X11138 Replacement
GE Frigidaire Fit
Over-Voltage Protection
4.7Editor score
8 Pack 20A 125V Microwave Oven Fuses
20A 125V Rating
6mmx30mm SFE Type
GE Frigidaire Hotpoint
Capacitor Discharge Tip
4.6Editor score
1. BOJACK Microwave Fuse 20a – Best Overall Microwave Fuse
BOJACK Microwave Fuse 20a
6x30mm Dimensions
20A 250V Rating
Ceramic Tube Body
GE WB27X10388 Fit
This BOJACK microwave fuse is a top-rated ceramic option with a 20A 250V rating. It offers reliable slow-blow protection for circuitry and is designed as a universal replacement for GE WB27X10388.
Pros
- Reliable slow-blow protection
- High quality ceramic build
- Fits many GE models
- Simple installation process
- Affordable replacement cost
Cons
- Single unit purchase
- Verify voltage before buy
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The high-quality ceramic construction ensures stability during operation. Users appreciate its fit for GE microwaves and the peace of mind that comes with protecting your appliance from overcurrent.
While it is a single unit, the price point makes it accessible for most homeowners. Just ensure your microwave requires a 250V fuse before ordering to avoid compatibility issues.
Homeowners with GE microwaves should consider this reliable option. Its quality and compatibility make it a smart choice for restoring safety and function to your kitchen appliance.
Superior Ceramic Durability
The ceramic tube body provides excellent insulation and resistance to heat, ensuring long-lasting performance even in high-stress electrical environments.
Precise Model Compatibility
Specifically designed to replace the WB27X10388 part, this fuse fits perfectly into GE microwave models without requiring modifications or adjustments.
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2. Frienda 20 Pcs Microwave Fuse – Best Value Pack
Frienda 20 Pcs Microwave Fuse
20A 250V Rating
6.35x30mm Size
20 Piece Quantity
Sand Filled Safety
The Frienda 20-piece pack is a top choice for bulk buyers. It features 20A 250V slow-blow ceramic fuses that are durable and safe, filled with sand to prevent glass fragments.
Pros
- 20 piece value pack
- Slow-Blow protection
- Safe sand filling
- Durable ceramic tubes
- Compatible with GE
Cons
- Check voltage carefully
- Aftermarket replacement
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Users value the sufficient quantity for multiple replacements. The slow-acting blow type resists surge current effectively. Safety is highlighted by the sand filling which avoids shattering upon burning out.
Always check the rated voltage before purchase as this is 250V. While it is an aftermarket product, it demonstrates clear compatibility with major brands like GE and Kenmore.
Those needing multiple fuses for various appliances or future repairs will find this pack ideal. The value and safety features make it a smart long-term solution for any home.
Safe Sand Filled Design
Filled with sand, these fuses do not produce glass fragments when they burn out, ensuring a safer replacement process for you and your family.
Long Term Value
With 20 pieces in the pack, you get sufficient quantity to satisfy daily replacement demands and serve you reliably for a long time.
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3. 5-Pack 20 amp Microwave Fuse – Best Budget Option
5-Pack 20 amp Microwave Fuse
6x30mm Dimensions
20A 250V Rating
5 Piece Package
Universal Fit
This 5-pack offers a very affordable solution for microwave fuse replacement. Each fuse is 20A 250V and designed as a direct universal replacement for most microwave models.
Pros
- Very affordable price
- Direct universal replacement
- Heavy-duty ceramic tube
- Fits many brands
- Quick installation
Cons
- Only 5 pieces
- Verify specific model
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The heavy-duty ceramic tube and high-strength end caps ensure durability. Users note its compatibility with GE, Whirlpool, and Kenmore, along with a simple installation process.
While it comes in a pack of five, the value is excellent for budget-conscious users. Just ensure you verify the dimensions and voltage match your appliance needs before ordering.
If you need a cost-effective repair solution, this pack is a strong contender. It restores your microwave efficiently without breaking the bank, extending service life.
Wide Brand Compatibility
Fully compatible with GE, Whirlpool, Kenmore, KitchenAid, and more, this universal fit makes it easy to find a match for your appliance.
Reliable Safety Device
It quickly blows to disconnect power during overheating or power surges, protecting your internal circuit and preventing further damage to your microwave.
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4. 2 Pack 20A 125 Volt Microwave Fuse – Best 125V Option
2 Pack 20A 125 Volt Microwave Fuse
20A 125V Rating
5304509451 Replaces
2 Piece Package
GE Kenmore Fit
This two-pack is a specific solution for 125V microwave ovens. It replaces part numbers like 5304509451 and works for GE, Kenmore, and Frigidaire models.
Pros
- Fits 125V models
- Part number match
- Includes door switch tip
- Compatible with Frigidaire
- Affordable two pack
Cons
- Only 2 pieces
- Short circuit warning
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The product includes a crucial tip about checking the door switch if fuses blow immediately. This helps troubleshoot short circuits before just replacing the fuse constantly.
While it only comes with two units, it targets a specific voltage niche. Always ensure your appliance requires 125V to avoid mismatching and potential safety hazards.
Those with compatible GE or Frigidaire microwaves will find this a precise match. The troubleshooting advice adds significant value for anyone facing recurring fuse issues.
Troubleshooting Insight
If your microwave continually blows fuses, check the door switch continuity before replacing to fix any underlying short circuit issues effectively.
Model Specific Fit
Designed for models like FGMV176NTDB and FFMV1645TDA, this fuse ensures a precise fit that matches original equipment specifications perfectly.
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5. BOJACK Microwave Fuse 20a (10 Pack) – Best Bulk Choice
BOJACK Microwave Fuse 20a (10 Pack)
20A 250V Rating
6x30mm Dimensions
10 Piece Pack
GE WB27X10388 Fit
This BOJACK pack offers 10 high-quality slow-blow ceramic fuses. It shares the same 20A 250V rating and GE WB27X10388 compatibility as the single unit version.
Pros
- 10 piece bulk pack
- High quality ceramic
- Slow-blow protection
- Fits GE models
- Same as single pack
Cons
- Higher total price
- Need storage space
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Users appreciate having multiple spares for future repairs. The build quality is consistent with the brand reputation for protecting microwave circuitry effectively.
Buying in bulk is great for technicians or large households. Ensure you store them in a dry place to maintain their ceramic integrity over time.
If you need stock for multiple appliances, this bulk option is ideal. It combines quality with quantity, ensuring you are prepared for any fuse failure.
High Quality Slow-Blow
The high-quality slow-blow ceramic design ensures robust protection for your microwave circuitry against unexpected surges and overcurrent events.
Perfect GE Replacement
Specifically compatible with GE microwaves, it replaces the WB27X10388 part directly, offering a reliable and precise fit for your machine.
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6. Pack of 10 20 Amp 250V Fuse – Best Universal Pack
Pack of 10 20 Amp 250V Fuse
20A 250V Rating
6x30mm Dimensions
10 Piece Pack
Quartz Sand Filled
This pack of ten provides excellent quantity for various replacement needs. The fuses are 20A 250V, slow-blow time delay, and filled with quartz sand for stability.
Pros
- 10 piece quantity
- Slow-blow time delay
- Quartz sand filled
- Universal compatibility
- Alloy brass body
Cons
- Check model numbers
- Not original brand
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Users value the universal compatibility with GE and Whirlpool. The body materials include ceramic tube and nickel plated brass, ensuring reliable performance in electronic devices.
Always check your model designation before purchase. While it is an aftermarket product, it serves as a strong universal replacement for many microwave models.
For homeowners needing spares, this value pack is practical. The durable construction and high count make it a versatile choice for any kitchen appliance repair.
Durable Body Materials
Constructed with a ceramic tube and nickel plated brass body, this fuse offers excellent insulation and stability for long-term safe operation.
Quartz Sand Filling
Filled with quartz sand, these fuses ensure excellent insulation and stability while preventing glass fragments when the fuse blows out.
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7. 5304509451 Microwave Fuse (5 Pack) – Best 125V Five Pack
5304509451 Microwave Fuse (5 Pack)
20A 125V Rating
5304509451 Part
Frigidaire Kenmore Fit
Door Switch Check
This 5-pack targets 125V microwaves and replaces the 5304509451 part number. It is universal for many models from Frigidaire and Kenmore, featuring a 6x30mm size.
Pros
- 5 piece quantity
- 125V compatible
- Replaces key parts
- Fits Frigidaire
- Universal models
Cons
- Verify voltage
- Check for shorts
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Like other 125V options, it includes a warning to check the door switch for continuity. This helps identify if the short is causing the fuse to blow repeatedly.
It is important to disconnect the appliance from power supply before servicing. This is a useful solution for recurring replacement needs in compatible appliances.
If you own a Frigidaire model requiring this part, this pack is ideal. It balances quantity and price, ensuring you have spares for future maintenance needs.
Frigidaire Compatibility
Specifically compatible with Frigidaire microwave ovens, this fuse also works for universal models, ensuring you find the right part for your brand.
Important Safety Note
Always disconnect your appliance from the power supply before servicing to ensure your safety when handling electrical components and fuses.
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8. Pack of 4 Microwave Oven Door Switch & Fuse – Best Combo Kit
Pack of 4 Microwave Oven Door Switch & Fuse
20A 250V Fuse
KW3A Door Switch
16A Switch Rating
Ceramic Fuse Body
This unique 4-piece pack includes both KW3A microwave door switches and ceramic fuses. It addresses common issues where the door switch or fuse may need replacement.
Pros
- Includes door switch
- Complete repair kit
- KW3A switch match
- Ceramic fuse quality
- 4 piece quantity
Cons
- Check model match
- Two items mixed
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The switch is plastic and rated 16A, compatible with the 250V fuse. This combo is valuable for troubleshooting safety interlock problems that cause electrical issues.
Note the switch size is as shown. This kit saves time by providing both critical parts needed for a comprehensive repair rather than ordering separately.
Homeowners dealing with door switch issues will benefit most from this. It offers a complete solution for electrical safety and appliance functionality in one purchase.
Complete Repair Solution
This pack solves multiple repair needs by including both door switches and fuses, ensuring you have all parts needed for a comprehensive fix.
KW3A Switch Match
The included KW3A door switch matches common requirements, ensuring compatibility for your microwave's safety interlock system effectively.
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9. 10Pcs 5304509451 20A 125V Fuses – Best 125V Bulk Pack
10Pcs 5304509451 20A 125V Fuses
20A 125V Rating
10 Piece Quantity
Replaces WB27X11138
Over-voltage protection
This 10-piece pack is a strong option for 125V microwaves. It features 20A capacity with over-voltage protection, ensuring dual safety for powerful microwave units.
Pros
- 10 piece pack
- High current capacity
- Over-voltage protection
- GE Frigidaire fit
- Easy install
Cons
- Check voltage
- Verify model number
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Users appreciate the ample quantity for instant power cuts during overloads. It replaces WB27X11138 and other models, extending your microwave's lifespan through easy maintenance.
The high-quality replacements are ready to install immediately. Just ensure your model needs 125V to avoid any electrical mismatches or safety hazards.
For those needing bulk 125V protection, this pack is excellent. It combines value with safety, ensuring your appliance remains protected against electrical surges.
High Current Capacity
Rated at 20A, this fuse handles powerful microwaves effectively, ensuring robust protection against over-voltage and overcurrent conditions.
Ample Quantity
With 10 pieces included, this pack ensures you have enough fuses for future replacements, providing great value for any household.
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10. 8 Pack 20A 125V Microwave Oven Fuses – Best 125V Value
8 Pack 20A 125V Microwave Oven Fuses
20A 125V Rating
6mmx30mm SFE Type
8 Piece Pack
GE Frigidaire Fit
This 8-pack offers excellent value for 125V microwave ovens. It features 20A 125V SFE fuses with clear 611 type identification for easy installation and identification.
Pros
- 8 piece value
- Exact fit
- Reliable protection
- Capacitor discharge tip
- 611 type identification
Cons
- Discharge capacitor
- Verify voltage
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Users appreciate the value of eight fuses saving time and money. The reliable circuit protection cuts off power during surges to prevent magnetron damage.
Always ensure the high-voltage capacitor is discharged before servicing. This critical safety step prevents accidental shocks during your repair process.
Homeowners needing stock for 125V microwaves will find this ideal. It is a reliable choice for DIYers looking for a quick fix without excessive cost.
Reliable Circuit Protection
This 611 microwave fuse blows to cut off power during component failure, protecting your magnetron and high-voltage components effectively.
Capacitor Safety Tip
Always discharge the high-voltage capacitor before replacing the fuse to ensure your safety while servicing the appliance properly.
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Buying Guide – How to Choose the Best Microwave Fuses
Selecting the right microwave fuse involves checking specific technical details and compatibility. This guide breaks down the key factors to ensure you purchase a safe and effective replacement.
Voltage Rating
Voltage rating is the most critical specification to check. Most fuses are either 125V or 250V; using the wrong voltage can lead to safety hazards. Always match the rating printed on your old fuse to the new one.
Confirm your appliance requires 125V or 250V before ordering.
Current Rating (Amps)
The current rating, usually measured in Amps (A), determines how much load the fuse can handle. For microwaves, 20A is a common standard. Using a higher amp fuse may damage the circuit during an overload.
Choose a 20A fuse unless your model specifies a different amperage.
Dimensions
Microwave fuses come in standard sizes like 6x30mm or 5x20mm. Ensure the length and diameter match your existing fuse for proper fitting. A mismatch in size may prevent secure electrical contact or fit in the housing.
Measure your old fuse diameter and length before purchase.
Type (Fast vs. Slow-Blow)
Fuses are generally Fast-Blow or Slow-Blow (Time Delay). Microwave circuits often require Slow-Blow to handle power surges without blowing immediately. Check your appliance manual or old fuse type.
Select Slow-Blow for microwave appliances if specified.
Model Compatibility
Compatibility ensures the fuse works with your brand like GE, Frigidaire, or Whirlpool. Part numbers like WB27X10388 or 5304509451 are direct matches. Check the product description for your model number.
Verify your model number matches the compatibility list.
Material Safety
Ceramic tubes are standard for microwave fuses due to their heat resistance and safety. Look for features like sand filling which prevents shattering if the fuse blows. Glass fuses are generally less safe for this application.
Choose ceramic tubes with sand filling for safety.
Pack Quantity
Fuses come in single units, 5-packs, 8-packs, or 10-packs. Buying in bulk can save money if you have multiple appliances or want spares. Single units are fine for simple one-time repairs.
Buy in bulk if you need spares for future repairs.
Brand Reputation
While aftermarket parts are common, sticking to brands with high ratings ensures quality and safety. Read reviews for feedback on fit and longevity. Avoid unbranded or extremely cheap options that may fail prematurely.
Select products with high ratings and positive user feedback.
How to Use and Care for Your Microwave Fuses
Always unplug your microwave before attempting any repair. High-voltage capacitors can hold a charge even when unplugged; discharge them using a proper resistor tool to ensure safety.
Remove the old blown fuse carefully using pliers. Check the new fuse matches the dimensions and ratings. Insert the new fuse into the holder ensuring a snug connection.
After installation, test the microwave for basic operation. If the fuse blows again immediately, there may be a short circuit or a faulty door switch needing further inspection.
Frequently Asked Questions
What are the common signs of a blown microwave fuse?
The most obvious sign is a microwave that has no power at all and does not light up. You might also smell a distinct burnt odor near the appliance. In some cases, you can see a broken metal wire inside the glass fuse tube.
How do I know if I need a 125V or 250V fuse?
Check the original fuse label on your appliance for the voltage rating. Most US microwaves use 125V while others use 250V. Using the wrong voltage can cause safety issues or failure. Always match the old rating.
Can I use a 20A fuse if my old one was different?
Do not change the amperage rating as it protects the circuitry from overload. If your old fuse was not 20A, check if it was 15A or 25A. Using a higher amp fuse risks damaging the microwave during a surge.
Why does my microwave fuse keep blowing immediately?
This often points to a short circuit or a faulty door switch that stays closed. Sometimes a damaged magnetron or control board can cause it. Check the door switch continuity before just replacing fuses again.
Is it safe to repair my microwave fuse myself?
Yes but safety is paramount as microwaves hold high voltage. Always unplug the device and discharge the capacitor first. Use insulated tools and avoid touching internal circuits unless you know what you are doing.
What is a slow-blow fuse and do I need it?
Slow-blow fuses have a time delay to handle power surges without blowing. Most microwaves require them to prevent nuisance tripping. Always check your old fuse type before choosing a replacement fuse.
How long does a microwave fuse typically last?
Under normal conditions, a fuse can last many years. However, power surges or internal shorts can cause it to blow prematurely. If your microwave works well, it does not need routine fuse replacement.
Should I buy a single fuse or a bulk pack?
For a one-time fix, a single unit is sufficient and cheaper. Bulk packs are better value if you have multiple microwaves or want spares. Consider the total cost per unit when buying multiple.
Final Thoughts on Choosing the Best Microwave Fuses
Choosing the right microwave fuse involves matching your appliance voltage, size, and model number. Our top picks include budget, value, and bulk options to suit various needs.
Always prioritize safety and check for short circuits if fuses blow repeatedly. Ensure you discharge the capacitor before any repair work to prevent electrical accidents.
Prices and availability may change so verify details before purchasing. We hope this guide helps you restore your microwave safely and efficiently today.