Device Overview
Acrel DTSD1352 is a three-phase multifunction DIN-rail energy meter for low-voltage distribution systems, industrial panels, public facilities, SCADA systems, and energy-management systems. It is useful when a project needs more than a basic kWh register: the official Acrel source set supports voltage, current, active/reactive/apparent power, power factor, frequency, active and reactive energy, demand/history functions, and harmonic monitoring.
Core Features
The DTSD1352 supports three-phase three-wire and three-phase four-wire systems. Acrel documents positive and reverse active energy, forward and reverse reactive energy, electrical-parameter measurement, 2nd-31st harmonic monitoring, pulse output, LCD display, RS485 Modbus RTU communication, and infrared communication. That makes it a better fit for installer-led panel monitoring, sub-metering, solar import/export visibility, and Modbus-connected energy-management systems than for app-first consumer monitoring.
Installation And Current Setup
The meter is intended for indoor 35 mm DIN-rail installation. Acrel documents both direct-connected and external-transformer wiring modes. The product page lists 3 x 10(80) A and 3 x 1(6) A current ratings, while the manual also documents external-transformer variants. For comparison, this EnergyMeterHub record uses 80 A as the direct-connected max-current scalar and preserves the CT/external-transformer boundary in the current-sensor note.
Compatibility And Data Access
Core metering does not require a vendor cloud service. The official manual documents RS485 Modbus RTU, so local integration is possible through compatible RS485 gateways, PLCs, SCADA systems, or energy-management software. Home Assistant compatibility should be treated as standards-based Modbus integration through suitable RS485 hardware, not as a native Acrel cloud or plug-and-play Home Assistant integration.
Strengths And Limits
DTSD1352 is strongest where a project needs three-phase Modbus metering, forward/reverse energy, demand history, and power-quality context in a DIN-rail format. The main selection caution is configuration: direct-connected and transformer-input versions should not be treated as interchangeable, and the chosen CT ratio or wiring mode must match the installation design.