The fuse is generally sized at about 135% of the rated input current of a device. (230ac). Reassemble the oven and plug it in. The amps drawn by any appliance is an important consideration when it comes to sizing the electrical components or when building the circuit design for your kitchen. This is because no electrical device is a 100% efficient. Microwave ovens are about 65% efficient. Bussmann FNM-20 Fuse, Dual Element 20 Amp 32V or Less - … 5KV 700mA 0.7A Microwave high voltage fuse with holder and leads. HV High Voltage Fuse Popular in Microwaves. $6.80. 99. Average rating: 0 out of 5 stars, based on 0 reviews. Why, because the higher the voltage, the lower is the current drawn. or Best Offer. Fuses blow because of a short circuit. It should also be mentioned that for affixed or installed microwave ovens like over-the-range microwaves or built-in microwave, their current drawn should not exceed 50% of the breaker rating (according to American Standards)eval(ez_write_tag([[336,280],'kitchengearoid_com-large-mobile-banner-2','ezslot_17',132,'0','0'])); Also Read: Best Microwaves for Dorm – Small and Medium. Hence if you have a high powered countertop microwave oven with a rated input power of 1850W drawing about 15 Amps of current at 120 Volts (as mentioned earlier) you will need to have a dedicated branch circuit with a 20 Amps breaker installed at least. Item# Microwave Fuse 850ma. 99. Current Price $6.38 $ 6. eval(ez_write_tag([[300,250],'kitchengearoid_com-medrectangle-4','ezslot_9',108,'0','0']));Note that amperage is a function of both power and voltage. This microwave fuse is just over an inch in length. Beaquicy Microwave Fuse Ceramic Fuse Cartridge Fuse 20 Amp 250V Slow-Blow Compatible with WB27X10388 Microwave 10 PCS $5.99$5.99($0.60/Count)$7.99$7.99 Get it as soon as Mon, Feb 8 FREE Shipping on orders over $25 shipped by Amazon 99. If your microwave oven blows a fuse, there are a couple possible causes. Using 20A fuse is over limit the maximum rate on any wall outlet. HV High Voltage Fuse Popular in Microwaves. From United States. I don't know if the microwave generator also takes a higher startup current. No, you need to have the microwave repaired or replaced. From Hungary. Similarly, if you have a low powered countertop microwave oven rated at 1100W input power drawing in 9.16 Amps of current at 120 Volts, then you will need a breaker that has approximately 12 Amps rating. How much current (Amps) and appliance draws is a very important consideration particular when it comes to the electrical design and safety. Let us see some of the typical input and output power values. From United States +C $28.60 shipping . Get it Tomorrow, Feb 2. somewhere between 600W and 850W,) electrical theory suggests that a 5 Amp fuse is what is required. 4.5 out of 5 stars 624. C $10.11. It is used as the main input fuse and fails if there is a fault, often the fuse fails for no reason from prolonged use of your microwave and the everyday stress and strain. These fuses are ideal for use in electronic circuits and are CSA- and UL listed. All Rights Reserved. While using a high powered electrical device is not recommended over an extension cord, if you absolutely have to, you then have to take into consideration the input current of your device and then decide on the corresponding gauge (diameter) of the extension cable. 49. A medium cable indicates a 5 A fuse, and a thin twisted (or untwisted) pair (such as found on a table-lamp or phone charger) only requires a 3 A fuse. Where is the ceramic fuse in a microwave? OEM Genuine Maytag Microwave Noise Filter 250V Fuse 20A W10531156. Arrives before Valentine's Day Only 4 left in stock. Similarly, a 15 Amps breaker should not be connected to a device (or devices) that draws more than 12 Amps of current. FREE Delivery. Conversely, a thermal fuse will prevent electrical flow if the fuse is heated to a specific temperature. You can use a 10 or 13 amp fuse for a microwave and as a general guide for fused plugs the smaller fuse sizes should be plus around 50% of the normal load to prevent overheating and premature failure.