1. Compatible models: This refrigerator overload protector can prevent the refrigerator compressor from overheating and is suitable for replacing parts with numbers such as AP4439459, 1357963, AH3529540, EA3529540, PS3529540, etc. You can check the list of compatible models on the product. Please confirm the model of your refrigerator before purchasing to ensure you order the correct compatible part. 2. PTC starting relay: This PTC starting relay is a universal starting relay, suitable for mini - refrigerators and refrigerators of various brands, saving time and effort. This product is only compatible with the QP2 - 4.7 single - terminal relay. Please consider this before purchasing. 3. Easy to install: The refrigerator starting relay is made of plastic, and the overload protector is made of brass. Both materials are durable, reliable, and rust - resistant. They are also easy to directly install and replace. After installation, the refrigeration function of the refrigerator can be restored. 4. Wide application: The 4.7 - ohm 1 - pin PTC starting relay and the 6750C - 0005P refrigerator overload protector are suitable for most mini - refrigerators, small refrigerators, beverage and beer refrigerators, deep - freeze freezers, and wine refrigerators, with wide applications in daily life. 5. Color: As shown in the picture. 6. Material: Plastic. 7. Package contents: - 1 piece of 4.7 - ohm 1 - pin PTC starting relay. - 1 piece of 6750C - 0005P refrigerator overload protector. The package only contains the above items and no other products. 8. Precautions: Light irradiation and different displays may cause slight differences between the color of the items in the picture and the actual product. The allowable measurement error is ±1 - 3 cm.