Device Overview
Acrel DJSF1352-RN/D-P1 is a DIN-rail DC energy meter for systems where the measured circuit is DC rather than AC. Typical use cases include DC EV charging equipment, photovoltaic DC circuits, telecom power systems, battery systems, UPS/DC panels, and other equipment where voltage, current, power, and forward/reverse energy need to be visible locally and available over a wired protocol.
Core Features
The official Acrel source set describes DJSF1352-RN as a rail-mounted DC power meter with local LCD display, RS485 Modbus RTU / DL/T645 communication, and external current input through a shunt or Hall sensor. The DJSF1352-RN/D-P1 listing identifies a two-channel rail-type DC EV-charger configuration with 100 V, 350 V, 500 V, 750 V, and 1000 V rated-voltage options and a 300 A calibrated-current context.
Installation And Measurement
This is not an AC phase meter. It should be treated as a DC energy meter for appropriately designed DC circuits. Acrel documents DC 0-1000 V measurement, external 75 mV shunt support, Hall-sensor signal options, local display, and forward/reverse DC energy measurement. The ordered sensor/shunt, voltage range, and auxiliary power option should be confirmed before installation.
Compatibility And Data Access
Core data access is local: the meter supports RS485 Modbus RTU and DL/T645-2007. That makes it suitable for SCADA, industrial controllers, gateways, and Home Assistant-style deployments when paired with compatible RS485 hardware and a correct Modbus register configuration. Home Assistant support is standards-based through Modbus, not an Acrel-native cloud integration.
Buying Notes
Acrel provides official product, PDF, and quote/contact routes, but no direct public checkout price was verified during this review. Buyers should confirm the exact DJSF1352-RN/D-P1 option, voltage range, current sensor or shunt selection, accuracy option, and local certification requirements before specifying the meter.