DESCRIPTION

The WM30AV53H is a modular power analyzer designed for three-phase electrical systems with measurement capabilities for single-, two-, and three-phase configurations. It features a backlit LCD display with touch keypad for viewing measurements and configuring up to 4 alarms, and measures main electrical variables including voltage, current, active and reactive power, energy consumption, and voltage/current harmonic distortions (THD). The unit operates with an auxiliary power supply from 100 to 240 V ac/dc (H version) and supports measurement inputs from 380 to 690 V L-L ac at 5(6) A via current transformers, with measurement accuracy of ±(0.5% reading + 1 digit) for active and apparent power. Optional accessory modules can be added for digital outputs (static or relay), analogue outputs (0-20 mA or 0-10 V), and communication protocols including Modbus RTU, Modbus TCP/IP, BACnet IP, BACnet MS/TP, and Profibus DP V0. The WM30AV53H is ideal for switchboard installation to monitor energy consumption and electrical parameters in industrial automation, building management systems, and power distribution applications.