Qp3-12a Wiring Diagram ~upd~ Today

It acts as a safety switch that disconnects power if the compressor draws too much current (12A rating) or overheats, preventing motor failure. AliExpress Wiring Configuration and Terminals

| Terminal | Single-Phase Connection | |----------|-------------------------| | L1 | Live (Phase) | | L2 | Neutral | | L3 | Jumper to L2 (or left unconnected, check manual) | | A1 | Same as L1 (or external control supply) | | A2 | Same as L2 | | 11-14 | Output to load | Qp3-12a Wiring Diagram

is a specialized PTC (Positive Temperature Coefficient) starting relay combined with an overload protector, commonly utilized in refrigerator compressors, such as those from brands like It acts as a safety switch that disconnects