CF20SB - Supco Microwave Ceramic Fuse, 20 Amp

SKU : CF20SB
$4.06
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Supco CF20SB Microwave Ceramic Fuse – 20 Amp Replacement Part

The Supco CF20SB 20 Amp Microwave Ceramic Fuse is a high-quality, reliable replacement part designed to protect your microwave from electrical surges and prevent damage to internal components. Offered by Appliance Kingdom, this ceramic fuse is compatible with most domestic and commercial microwave models that use a 20-amp fuse specification. It is ideal for homeowners or technicians looking for a fast, dependable microwave repair solution.

Function & Importance

The CF20SB fuse acts as a critical safety device inside your microwave. It protects the appliance by breaking the circuit when excessive current flows, preventing potential fires, damage to the transformer, magnetron, or other electronic components. Without a properly functioning fuse, your microwave could overheat, fail to operate, or suffer costly damage.

Common Signs You Need a Replacement

You may need to replace the CF20SB fuse if you notice:

  • Microwave not turning on at all

  • Intermittent operation or sudden shutdowns

  • Fuse visibly blown or discolored

  • Burning smell inside the microwave

  • Microwave not heating food even though it powers on

These symptoms typically indicate a blown or faulty fuse, which must be replaced to restore safe, normal microwave operation.

Key Features & Benefits

  • High-Quality Ceramic Construction – Ensures durability and reliable protection against electrical surges.

  • 20 Amp Rating – Perfect for microwave circuits requiring a 20A fuse.

  • OEM-Grade Replacement – Meets or exceeds Supco standards for consistent performance.

  • Easy Installation – Quick and simple to replace with minimal tools required.

  • Reliable Safety Protection – Prevents appliance damage and reduces risk of electrical hazards.

  • Compact Design – Fits standard microwave fuse holders without modifications.

Ensure your microwave operates safely and efficiently with the Supco CF20SB 20 Amp Ceramic Fuse from Appliance Kingdom — a trusted source for genuine appliance replacement parts.

We ship appliance parts across Canada, including to Abbotsford, Airdrie, Barrie, Brampton, Brantford, Burlington, Calgary, Cambridge, Chilliwack, Coquitlam, Dartmouth, Edmonton, Etobicoke, Fort McMurray, Grand Prairie, Guelph, Halifax, Hamilton, Kamloops, Kelowna, Kingston, Kitchener, Langley, Laval, Lethbridge, London (Ontario), Markham, Mississauga, Moncton, Montreal, Nanaimo, Newmarket, North Vancouver, Nova Scotia, Oakville, Oshawa, Ottawa, Peterborough, Pickering, Prince Albert, Red Deer, Regina, Saskatoon, Scarborough, St. John's, Sudbury, Surrey, Thunder Bay, Toronto, Vancouver, Vaughan, Victoria, Waterloo, West Kelowna, Whitby, Windsor and Winnipeg.

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