Compatible models: The refrigerator overload protector helps prevent the compressor from overheating. Replaces part numbers AP4439459, 1357963, AH3529540, EA3529540, PS3529540. Check your refrigerator model before purchasing to ensure compatibility. PTC starter relay: Universal start relay designed for various brands of mini fridges and coolers. Compatible only with QP2-4.7 one-terminal relay. Verify compatibility before purchase. Easy to install: The refrigerator starter relay is made of plastic and the overload protector is made of brass, both durable, reliable, and rust resistant. Designed for direct replacement, easy to install, and helps restore cooling performance. Widely applied: The 4.7 Ohm 1-pin PTC start relay and 6750C-0005P refrigerator overload protector are suitable for most mini fridges, compact refrigerators, beverage coolers, beer coolers, deep freezers, and wine refrigerators. 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: The package includes only the items listed above. Other products are not included. Lighting and display settings may cause slight color variations between the image and the actual item. Measurement may vary by ±1-3 cm.