Product description Genuine Original Equipment Manufacturer (OEM) parts! This door interlock switch and fuse (part number 5303319559) is for microwaves. Door interlock switch and fuse 5303319559 prevents the microwave from operating by blowing the fuse when the door interlock switches don't work. Because high-voltage capacitors in a microwave can retain a lethal electrical charge even when the microwave is unplugged, a service technician should install this part. For Frigidaire, Kenmore, & Tappan. From the Manufacturer Frigidaire 5303319559 Switch Fuse Kit for Microwave. This part works with the following models: Frigidaire FGF374CCBA, Frigidaire FGF374CCSA, Frigidaire FGF374CCTA, Frigidaire FGMC2765KB, Frigidaire FGMO205KBA, Frigidaire FGMO205KFA. Genuine Replacement Part.