Product review (5 stars): Low cost and got my wine fridge up and running
This relay (QP2 4R7 (meaning it has a 4.7 ohm resistance)) is a common relay for small fridges, and can come in 1 pin or 3-pin variants. When my Vinotemp VT-15TS 15 Bottle Wine Cooler stopped cooling, all I would get was metallic clicks coming from the back of the unit, around the compressor. Unclipping the cover over the relay/overload, I was able to remove the existing relay, which in my case has one pin and is marked QP2 4R7. Upon shaking it, it rattled. Prying open the back, I confirmed the disk had shattered.  The manufacturer of the wine fridge will sell a replacement overload and relay for $72. However, I was able to locate this product and save myself a bunch of cash. It's a straight-forward replacement that is straightforward enough to carry out. You just have to identify the relay correctly.