Compatible models: The refrigerator overload protector helps prevent the compressor from overheating. This part is suitable for replacing AP4439459, 1357963, AH3529540, EA3529540, PS3529540. Please verify your refrigerator model before purchasing to ensure compatibility. PTC starter relay: This PTC start relay is a universal type designed for various brands of mini fridges and coolers. It is compatible only with QP2-4.7 one-terminal relay. Confirm compatibility before purchase. Easy to install: The refrigerator starter relay is made of plastic, and the overload protector is made of brass. Both materials are durable, reliable, and rust resistant. Designed for direct replacement, this unit helps restore cooling performance quickly. Widely applied: The 4.7 Ohm 1-pin PTC start relay and 6750C-0005P refrigerator overload protector fit most mini fridges, compact refrigerators, beverage coolers, beer coolers, deep freezers, and wine refrigerators. Suitable for everyday household use. Color: As shown Material: Plastic Package Contents: 1 x 4.7 ohm 1-pin PTC start relay 1 x 6750C-0005P refrigerator overload protector Note: Light shooting and different displays may cause slight color variations between the item and the image. Measurement may vary by +/- 1-3 cm.