20 Best 20 Amp Slow Blow Blade Fuse [2024]

Are you looking for the best 20 Amp Slow Blow Blade Fuse? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling 20 Amp Slow Blow Blade Fuse.

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# Preview Product
1 Littelfuse IDSR-20 IDSR020, 20Amp (20A) 600V Slow Blow Class RK5 Cartridge Blade Fuse Littelfuse IDSR-20 IDSR020, 20Amp (20A) 600V Slow Blow Class RK5 Cartridge Blade Fuse
2 Eaton Bussmann TCF20, 20Amp (20A) 600V Slow Blow Class CF Cube Blade Fuse Eaton Bussmann TCF20, 20Amp (20A) 600V Slow Blow Class CF Cube Blade Fuse
3 Eaton Bussmann TCF20, 20Amp (20A) 600V Slow Blow Class CF Cube Blade Fuse Eaton Bussmann TCF20, 20Amp (20A) 600V Slow Blow Class CF Cube Blade Fuse
4 LXM Slow Blow Glass Cartridge Fuse Tube 5mm x 20mm 250V 20A UL Listed 100Pcs LXM Slow Blow Glass Cartridge Fuse Tube 5mm x 20mm 250V 20A UL Listed 100Pcs
5 FMM- MAXI Fuse ('Slow Blow' Micro Female - 15 Amp 20 Amp 25 Amp 30 Amp 40Amp FMM- MAXI Fuse ('Slow Blow' Micro Female - 15 Amp 20 Amp 25 Amp 30 Amp 40Amp
6 YOLISTIC (Pack of 10) 20 Amp Slow-Blow Time Delay Fuse Ceramic 6x30mm YOLISTIC (Pack of 10) 20 Amp Slow-Blow Time Delay Fuse Ceramic 6x30mm
7 Littelfuse MAX30BP MAXI Slo-Blo 299 Series Automotive Blade Fuse Littelfuse MAX30BP MAXI Slo-Blo 299 Series Automotive Blade Fuse
8 10 Pack 20Amp 30Amp Micro Cartridge Fuses FMM MCASE Type FMM MAXI Fuse ('Slow Blow' Micro Female) 10 Pack 20Amp 30Amp Micro Cartridge Fuses FMM MCASE Type FMM MAXI Fuse ('Slow Blow' Micro Female)
9 Microwave Fuse Ceramic Fuse Cartridge Fuse 20 Amp 250V Slow-Blow Compatible and Universal... Microwave Fuse Ceramic Fuse Cartridge Fuse 20 Amp 250V Slow-Blow Compatible and Universal...
10 BOJACK Microwave Fuse 20AL250V 6x30mm 20A 250V Slow-Blow Ceramic Fuses 20 amp 250 Volt 0.24 x 1.18... BOJACK Microwave Fuse 20AL250V 6x30mm 20A 250V Slow-Blow Ceramic Fuses 20 amp 250 Volt 0.24 x...
11 Zephyr Slow Blow Glass Cartridge Fuse (Pack of 6) 6x30mm 250V (20 Amp) Zephyr Slow Blow Glass Cartridge Fuse (Pack of 6) 6x30mm 250V (20 Amp)
12 Microwave Fuse Ceramic Tube Fuse 20 Amp 250 V Slow Blow Fuse, 6.35 x 30 mm, Compatible with GE... Microwave Fuse Ceramic Tube Fuse 20 Amp 250 V Slow Blow Fuse, 6.35 x 30 mm, Compatible with GE...
13 Bussmann MDL-2 Glass Fuse 2 Amp 250 Volt Time Delay (Slo-blo) (5 pack) Bussmann MDL-2 Glass Fuse 2 Amp 250 Volt Time Delay (Slo-blo) (5 pack)
14 MulWark 120pc ClearMark Assorted Auto Mini-Car-Truck-Blade-Fuses Set- 5A 7.5A 10A 15A 20A 25A 30A -... MulWark 120pc ClearMark Assorted Auto Mini-Car-Truck-Blade-Fuses Set- 5A 7.5A 10A 15A 20A 25A 30A...
15 BOJACK 12 Values 120 pcs Slow Blow Glass Fuses Assortment Kit 5x20mm 250V T0.5A 1A 1.25A 1.6A 2A... BOJACK 12 Values 120 pcs Slow Blow Glass Fuses Assortment Kit 5x20mm 250V T0.5A 1A 1.25A 1.6A 2A...
16 HUAREW 12 Values 60 Pcs 6x30 mm 1A 2A 3A 4A 5A 6A 7A 8A 10A 15A 20A 30 A 250 V Slow Blow Ceramic... HUAREW 12 Values 60 Pcs 6x30 mm 1A 2A 3A 4A 5A 6A 7A 8A 10A 15A 20A 30 A 250 V Slow Blow Ceramic...
17 Cooper Bussmann Slow Blow Fuse, MDL, 250V - 3 Amp - Set of 5 Cooper Bussmann Slow Blow Fuse, MDL, 250V - 3 Amp - Set of 5
18 CrocSee 250 Pieces - Car Fuses Assortment Kit, Blade-Type Automotive Fuses - Standard & Mini Size... CrocSee 250 Pieces - Car Fuses Assortment Kit, Blade-Type Automotive Fuses - Standard & Mini Size...
19 BOJACK T3AL250V 5x20mm 3A 250V Slow Blow Fuses 3 amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay... BOJACK T3AL250V 5x20mm 3A 250V Slow Blow Fuses 3 amp 250 Volt 0.2 x 0.78 Inch Glass Tube...
20 Tegg 10PCS 20A Slow-Blow Time Delay Ceramic Fuses 250V 6x30mm Tegg 10PCS 20A Slow-Blow Time Delay Ceramic Fuses 250V 6x30mm
Bestseller No. 4
LXM Slow Blow Glass Cartridge Fuse Tube 5mm x 20mm 250V 20A UL Listed 100Pcs
  • Fuse Type: Slow Acting Blow (Time Delay Burn) Rating Voltage: 250V
  • Breaking Current: 20A
  • Dimension: 5mm x 20mm/ 0.2" x 0.8" (D*L) Material: Glass, Metal
  • Net Weight: 56g
  • Package: 100Pcs x Glass Fuse
Bestseller No. 5
FMM- MAXI Fuse ('Slow Blow' Micro Female - 15 Amp 20 Amp 25 Amp 30 Amp 40Amp
  • Includes 10 MCASE mini fuses, 2 fuses of each amp rating: 15, 20, 25, 30, and 40 amperes.
  • Smaller than J-Case box fuses - SEE DIMENSIONS picture. These are a mini version of the more common JCASE cartridge fuses.
  • Commonly used in RAM truck fuse boxes, along with other makes, for various automotive systems.
  • An incredible value! Far less expensive than factory replacements! Perfect for replacing trailer-related blown fuses in trucks.
  • 100% SATISFACTION GUARANTEE: Providing you with the friendliest customer service is our number one goal. This is why our products are backed by a 100%...
Bestseller No. 6
YOLISTIC (Pack of 10) 20 Amp Slow-Blow Time Delay Fuse Ceramic 6x30mm
  • Body Material : Ceramic Tube/ Alloy/ Nickel Plated Brass/ Quartz Sand
  • Size: 6x30mm
  • Amp Rating: 20A, Voltage Rating: 250V
  • Item Package Quantity: 10 PCS
  • Fuse Type : Slow Blow (Time Delay)
Bestseller No. 7
Littelfuse MAX30BP MAXI Slo-Blo 299 Series Automotive Blade Fuse
  • Designed to protect the power distribution system of the vehicle
  • Constructed from durable material that is corrosion and abrasion resistant
  • Protects electrical, electronic circuitry from overheating
  • Features “Diffusion Pill Technology”
  • Easy Installation
Bestseller No. 9
Microwave Fuse Ceramic Fuse Cartridge Fuse 20 Amp 250V Slow-Blow Compatible and Universal...
  • Common and universal fuse for home appliance fuse using, 1 year warranty
  • 20 amp, slow-blow to protect microwave circuitry
  • High quality ceramic, sand filled- with nickel plated end caps- meet OEM specs, compatible with GE microwaves, replaces GE WB27X10388
Bestseller No. 10
BOJACK Microwave Fuse 20AL250V 6x30mm 20A 250V Slow-Blow Ceramic Fuses 20 amp 250 Volt 0.24 x 1.18...
  • BOJACK 20 Pcs High Quality Slow-blow Ceramic Fuses
  • Fuse Dimension: 6x30 mm/0.24 x 1.18 Inch
  • Fuse Current: 20A
  • Fuse Voltage: 250V
  • Package Quantity: 20 pcs Packed in a plastic storage case
Bestseller No. 11
Zephyr Slow Blow Glass Cartridge Fuse (Pack of 6) 6x30mm 250V (20 Amp)
  • Rated 20A 250V slow acting / slow blow glass cartridge fuse
  • End caps constructed of high conductivity nickel-plated brass
  • 6x30mm (1/4" x 1-1/4") overall dimensions
  • UL/CSA 248-14 compliant design ensures low breaking capacity
  • Replaces many digital multi meter (DMM) fuses
Bestseller No. 12
Microwave Fuse Ceramic Tube Fuse 20 Amp 250 V Slow Blow Fuse, 6.35 x 30 mm, Compatible with GE...
  • Rated voltage: 250 V; Rated current: 20 Amp; Total size: 6.35 x 30 mm/ 0.24 x 1.2 inches (diameter x length)
  • Type and compatibility: slow acting blow (time delay) ceramic fuse, durable and resist surge current, compatible with GE WB27X10388 and Kenmore...
  • Main function: these ceramic tube fuse mainly can be applied for protecting the circuit against overload, overcurrent and short circuit, the microwave...
  • Warm notice: please turn off power before your replacement, please check the size, rated current and rated voltage carefully before purchase
  • What you receive: 20 pieces of ceramic tube fuse, sufficient quantity can satisfy your daily replacement demands, can serve you for a long time; Note:...
Bestseller No. 14
MulWark 120pc ClearMark Assorted Auto Mini-Car-Truck-Blade-Fuses Set- 5A 7.5A 10A 15A 20A 25A 30A -...
  • ▲UL Listed: all MulWark car fuses are UL listed to ensure the highest-standard protection of your electrical devices
  • ▲CONFIDENT & EASY INSTALLATION: These 32 Volt fast-acting replacement spade fuses protect your vehicles, farm machines and electrical device/...
  • ▲CONVENIENT DETECTION: The plug-in blade fuses are made from transparent PES with zinc alloy inserts and transparent housings for viewing the fuse...
  • ▲GREAT COMPATIBILITY: These assorted fuses are specifically designed for Cars, Trucks, SUVs, ATVs, UTVs, Camper RV, Motorcycles, Fleet, Golf Car,...
  • ▲EXPLICIT DIAGRAM: A diagram inside the storage box case corresponds to every compartment with labels so you know what size each fuse is and where...
Bestseller No. 15
BOJACK 12 Values 120 pcs Slow Blow Glass Fuses Assortment Kit 5x20mm 250V T0.5A 1A 1.25A 1.6A 2A...
  • BOJACK High Quality Slow blow Glass Fuses Assortment Kit
  • Fuse Dimension:5x20mm/0.2x0.78 Inch
  • Fuse Voltage: 250V
  • Fuse Model:12 type-(0.5A/1A/1.25A/1.6A/2A/2.5A/3A/3.15A/4A/5A/6.3A/10A)
  • Package Quantity: 120 pcs (Each model 10 pcs), Packed in A plastic storage case
Bestseller No. 16
HUAREW 12 Values 60 Pcs 6x30 mm 1A 2A 3A 4A 5A 6A 7A 8A 10A 15A 20A 30 A 250 V Slow Blow Ceramic...
  • ▲HUAREW High Quality Slow Blow Ceramic Tube Fuses Assortment Kit
  • ▲Dimension:6x30mm
  • ▲Rated Voltage: 250V
  • ▲Model:1A 2A 3A 4A 5A 6A 7A 8A 10A 15A 20A 30 A
  • ▲Package Quantity: 60 Pcs (Each model 5 Pcs)
Bestseller No. 17
Cooper Bussmann Slow Blow Fuse, MDL, 250V - 3 Amp - Set of 5
  • Replacement Fuses
  • Used in many applications
  • They are 1/4" diameter x 1-1/4" long
  • High Quality Product
Bestseller No. 18
CrocSee 250 Pieces - Car Fuses Assortment Kit, Blade-Type Automotive Fuses - Standard & Mini Size...
  • The blade fuses are clearly marked with amperage and color coded for easy identification
  • Available in amperage ratings of 2A to 40A (rated at 32 volts), you could always find one that fits your auto
  • Includes both standard size & mini size; Perfect for Car/RV/Truck/Motorcycle/Boat
  • Zinc-plated terminals for corrosion resistance and enhanced conductivity
  • Comes with a fuse puller, makes replacing the fuse easier and quicker
Bestseller No. 19
BOJACK T3AL250V 5x20mm 3A 250V Slow Blow Fuses 3 amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay...
  • BOJACK 20 Pcs High Quality Slow-blow Glass Fuse
  • Fuse Dimension: 5x20mm/0.2x0.78 Inch
  • Fuse Current: 3A
  • Fuse Voltage: 250V
  • Package Quantity: 20 pcs Packed in a plastic storage case
Bestseller No. 20
Tegg 10PCS 20A Slow-Blow Time Delay Ceramic Fuses 250V 6x30mm
  • Product Name: Ceramic Fuses.
  • Fuse Type : Slow Blow (Time Delay).
  • Current Rating: 20A. Voltage Rating: 250V .
  • Diameter: 6mm / 15/64Inches. Length: 30mm /1-3/16 Inches.
  • Package included: 10 PCS.

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John Harvards provides an 20 Amp Slow Blow Blade Fuse buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

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  1. Brand Value: Every brand of 20 Amp Slow Blow Blade Fuse has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an 20 Amp Slow Blow Blade Fuse?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your 20 Amp Slow Blow Blade Fuse.
  5. Customer Ratings: Number ratings grade 20 Amp Slow Blow Blade Fuse objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 20 Amp Slow Blow Blade Fuse.
  7. Product Quality: You don’t always get what you pay for with an 20 Amp Slow Blow Blade Fuse, sometimes less, and sometimes more.
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FAQ:

Q: What is the difference between fast-blow and slow-blow fuses?

A: A slow blow fuse requires higher I2t than fast-blow fuses to blow up. Slow blow fuse requires much higher time than the Fast Acting one. But why does one require a delay in a fuse blowing up?

Q: What is the time required for a fuse to blow?

A: In general, the time required for a fuse to blow can be given I2t where I is the current, and t is the time. A slow blow fuse requires higher I2t than fast-blow fuses to blow up. Slow blow fuse requires much higher time than the Fast Acting one.

Q: Why is there a delay in a slow blow fuse blowing up?

A: A slow blow fuse requires higher I2t than fast-blow fuses to blow up. Slow blow fuse requires much higher time than the Fast Acting one. But why does one require a delay in a fuse blowing up? This delay is to decrease the chances of false tripping. During startup, many circuits or components require very large current for a very short period.

Q: What is the difference between fast acting and slow acting fuses?

A: Fast Acting Fuses As discussed before, this type of fuse acts very fast and if overcurrent occurred, it will instantly disconnect the circuit from the source. This type of fuse has very low I2t compared with slow blow fuse. The majority of the application is in consumer or household equipment.