The compressors used in chillers can fail if there is incorrect phase sequence so monitoring this function is important. You do not want to replace a compressor! Our Carlo Gavazzi DPA51 phase monitoring relays are the market leader for phase loss detection!
If undervoltage is a problem (overheating the compressor motor), our Carlo Gavazzi DPA53 adds a setpoint to keep only vital functions on until the grid is back where it should be.
If your compressor is installed directly on the line it can start very abruptly with a huge inrush current resulting in higher energy costs. To remove this issue our Carlo Gavazzi scroll compressor softstarters RSBD, RSBT, RSHR and RSDR are the answer.
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