1.all electrical parameters, alarming
2.2 digital inputs,1 analog outputs,RS485MODBUS port
3.3-phase, 4-quadrant energy meter

Product description:

 

The multiparameter energy meter PSM20 offers high-performance measurement capabilities needed to monitor an electrical installation in a compact 60×96 mm unit. The meter's easy-to-read LCD display lets you view all three phases at the same time.

  

PSM20 Details:

Panel-mount,LCD display3-phase, 4-quadrant metering, class 0.5 accuracyAll configuration functions selectable by built-in key-padAll electrical parameters meteringDirect connect voltage inputs,no need for potential transformers(PTs) up to 400VACConnect current inputs through potential transformers(CTs)for 1A or 5A2 digital inputs,1 analog outputs,RS485 MODBUS communication port(RTU).

 

Wiring diagram: