Wire the or Normally Closed (NC) contact series into your primary electromagnetic contactor coil loop.
If the unit is "hot" due to phase imbalance:
GMR32B Phase Controller Manual: Troubleshooting Hot Controller Issues & Installation Guide
Remember: – the device is a critical safety component that prevents costly motor damage. Always keep a copy of the manufacturer’s manual near the panel for quick reference during routine inspections. gmr32b phase controller manual hot
: Look for damaged or corroded wiring that may be contributing to resistance. Clean Contacts
Before attempting to operate or work with the GMR32B phase controller, ensure you:
: Using the wrong wire combination can cause excess heating in phase controllers. : Verify the wiring matches the diagram provided in the GMR-32B User Documentation Voltage Incompatibility Wire the or Normally Closed (NC) contact series
The is an essential, heavy-duty industrial monitor designed to protect multi-phase equipment by detecting power faults in real time. Manufactured by brands like COCIS (SICCOS), this high-performance monitoring relay serves as an indispensable safety barrier for central air conditioning compressors, elevator systems, water pumps, and industrial motors.
1 Single-Pole Double-Throw (SPDT) contact
Crucial Safety Note: The GMR-32B must be sampled on the power side of the 3-phase supply. It must never be installed on the output side of a variable frequency drive (VFD/inverter), as this will cause internal damage or failure. : Look for damaged or corroded wiring that
Most DIN-rail mounted phase controllers like the GMR32B interface have a manual lever:
-10°C up to +55°C operational range
Phase reverse, phase loss (unbalance), overvoltage, and undervoltage.
match the expected orientation) and the voltage sits within baseline tolerance. The relay remains energized, keeping the system online.