PM820MG belongs to Schneider PowerLogic PM800 series power meter family, inherits all measurement functions of PM810MG and adds timestamp event log and alarm recording function. Supply voltage: 115~415VAC /125~250VDC, power consumption ≤15VA. It can measure three-phase voltage, current, active/reactive/apparent power, power factor, frequency, active/reactive energy, up to 31st harmonic and total harmonic distortion THD.

It is equipped with 1 digital input DI and 1 digital static output DO. Communication interface RS485, Modbus RTU protocol, baud rate adjustable from 2400~38400bps. 80KB memory supports minimum/maximum value storage, event alarm recording with time stamp. Panel protection IP54, rear housing IP30. Sampling rate 128 samples per cycle, active energy accuracy class 0.5S. Working temperature -25~+70℃, panel cutout 92×92mm.

PM820MG is discontinued legacy Schneider power meter spare part. Many power distribution cabinets still adopt this meter. When the original meter fails, replacing it with identical PM820MG can reuse panel cutout, CT/PT wiring and SCADA communication configuration without redevelopment. Technicians install the meter, set CT/PT ratio, Modbus address and test data reading, so power monitoring system resumes operation and reduces downtime.

Before shipment, every PM820MG undergoes comprehensive functional inspection including power-on self-test, display check, DI/DO test, Modbus communication verification and measurement accuracy calibration. All products come with 12-month warranty. Our automation technical team provides remote support for installation, wiring guidance, parameter setting and fault diagnosis. Fast global shipping available for urgent maintenance orders.

For automation maintenance engineers and system integrators, PM820MG is reliable spare multifunction power meter for legacy Schneider PowerLogic power monitoring systems. It restores electric parameter measurement, harmonic monitoring and energy data recording functions, extends service life of power distribution assets and avoids high-cost whole monitoring system renovation.