Qp3-12a Wiring Diagram «Plus • SERIES»

The Qp3-12a is not a simple on/off switch. It contains:

The relay unit usually has pins that plug directly onto the compressor's triangular terminal pins. Input Lines: Live (L) / Phase: Qp3-12a Wiring Diagram

According to official service documentation from Visualizador , the QP3-12A has the following electrical characteristics: : Up to 350V. Maximum Working Current : 8A. Resistance at 25°C : Between 9 and 19 ohms. The Qp3-12a is not a simple on/off switch

For a phase loss relay, the . Therefore, you typically wire your contactor through the N/C (terminal 12) so that when power fails, the contactor drops out. Wiring through N/O (terminal 14) would keep the motor running even during a fault. Maximum Working Current : 8A

Most commonly, the Qp3-12a is a . Its primary job is to protect motors, compressors, and sensitive electronic loads from phase loss, phase sequence reversal, overvoltage, and undervoltage. When the incoming three-phase power is correct, the internal relay energizes. When a fault occurs, the relay de-energizes, cutting power to the load.