Device Overview

Acrel PZ72L-DE/C is a panel-mounted DC energy meter for sites that need DC-side visibility rather than AC branch-circuit metering. Acrel positions the PZ series for DC panels, solar power systems, telecommunications base stations, charging posts, and battery/DC distribution systems.

Core Features

The meter measures DC voltage, current, power, kWh/kVarh, and forward/reverse energy. It includes a local LCD display and can be specified with RS485 Modbus RTU communication so the meter can be connected to industrial control equipment, computers, gateways, or monitoring systems.

Installation and Sensor Setup

This is an embedded / panel-mounted meter rather than a DIN-rail module. Acrel lists a 75 x 75 mm panel size and 67 x 67 mm cut-out size on the official product page. Current input depends on the ordered configuration: the official source lane lists 10 A DC direct connection, Hall-sensor input such as 0/4-20 mA, and 75 mV shunt input.

Compatibility and Data Access

For comparison purposes, the important point is that core metering does not depend on a vendor cloud. RS485 Modbus RTU gives a local integration path when the communication option is fitted. Home Assistant support should be treated as standards-based Modbus integration through suitable RS485 hardware, not as an Acrel-native plug-in.

Use Cases

PZ72L-DE/C fits DC metering points where a normal AC smart meter is the wrong tool: solar DC panels, DC charging equipment, telecom DC power systems, and battery/DC cabinets. It is useful when buyers need a local display plus a fieldbus data path for DC voltage, current, power, and import/export-style energy visibility.

Limits and Buying Notes

The page should not be compared as a household clamp meter, EV charger, inverter, battery, or gateway. The 10 A max-current value is the direct-input rating from the reviewed Acrel source lane; higher-current installations depend on the selected Hall sensor or shunt configuration and should be checked against the ordered part and installation design. Acrel provides official contact/quote routes, but no direct public checkout price was verified during this pass.