Monitoring compressor power supply. 2. GMR-32B Technical Specifications and Features
: Instantly trips the circuit during a phase reversal or voltage spike, preventing motor damage. Ease of Use
A "missing phase" is one of the most damaging faults for a three-phase motor. The GMR-32B continuously monitors each phase. If a phase is lost either before startup () or while the motor is running ( dynamic ), the protection activates, and the "缺相" LED lights up. The relay will trip after a short delay (approx. 1 second) to prevent the motor from overheating and burning out. gmr-32b phase controller manual
Technical Operational Summary & Reference Guide Device Class: Three-Phase Power Controller / Protector Application: Industrial power monitoring, motor protection, and grid stability analysis.
The GMR-32B is designed for high-reliability industrial monitoring with the following typical parameters: Operating Voltage: Commonly rated for Monitoring compressor power supply
Wired in series with the main contactor coil of your motor, compressor, or pump. Under normal line conditions, the NO contact closes, allowing the machine to power up.
Automatically trips if the phase order (L1, L2, L3 or R, S, T) is incorrect, preventing motors from running in reverse. Ease of Use A "missing phase" is one
Position the unit inside an enclosed electrical distribution box or power distribution cabinet away from direct water contact or corrosive environments.
The GMR-32B is a sophisticated electronic power protector built on digital circuit technology (MCU-based) to monitor three-phase power supplies. Unlike other relays that only look for phase loss, the GMR-32B guards against a range of destructive grid anomalies: phase sequence errors (reverse phase), static/dynamic phase loss, over-voltage, under-voltage, and voltage imbalance.
If the device trips or fails to operate, check the following common issues: