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Eastron SDM72CT-M vs Eastron SDM72D-M

Install fit
Phase support Three-phase four-wire 3P4W / 3 x 230(400) V AC system. Three-phase four-wire 3P4W AC systems.
Installation Indoor 4-module 35 mm DIN-rail mounted CT-operated three-phase meter for switchboards. Indoor DIN-rail mounted direct-connected three-phase meter.
Measurement CT-operated three-phase 4-wire multifunction energy meter with RS485 Modbus RTU import/export energy measurement. Three-phase 3P4W multifunction import/export energy and power meter.
Max current 9999 A 100 A
Meter fit
Accuracy class Active energy Class 1.0 / Class B; reactive energy Class 2. Active energy Class 1.0 / Class B; reactive energy Class 2.
Current sensing External current transformers; CT primary configurable 1-9999 A with 1 A or 5 A CT secondary input. Direct-connected whole-current meter; no external CTs required.
Monitoring
Protocol RS485 Modbus RTU / pulse output RS485 Modbus RTU / pulse output
Local API Yes Yes
Cloud dependency No vendor cloud required; local RS485 Modbus RTU and pulse outputs are available through compatible hardware. No vendor cloud required; local readings are available through RS485 Modbus RTU and pulse outputs.
Home Assistant Yes Yes
Solar fit
Solar import/export Yes Yes
Buying context
Availability Global Eastron product range; distributor stock, CT package, and certification details vary by market. Global Eastron product range; certification, stock, and suffix availability vary by market.
Source check
Last verified Jun 27, 2026 Jun 25, 2026
Product page Official page Official page
Documentation Official docs Official docs
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