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SOFAR DDSU666 Single-Phase Smart Meter with 200A CT | PowerAll

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SKU: 900020700013-0
Product Details

Accurate grid import and export monitoring for compatible SOFAR solar and battery systems. The SOFAR / CHINT DDSU666 is a single-phase smart energy meter supplied with a 200A/40mA current transformer (CT) under manufacturer part number 900020700013-0. It supports energy measurement and inverter control through an RS485 communications connection. This is NOT the same as the CHINT version. This is a SOFAR specific version.

Key benefits

  • Single-phase energy monitoring: measure power flow between your property and the grid as part of a correctly configured solar or battery installation.
  • 200A current transformer included: CT-based measurement for the specified meter kit.
  • RS485 communications: designed for wired integration with compatible SOFAR inverter systems.
  • Compact DIN-rail format: installs inside a suitable electrical distribution enclosure.
  • Suitable for the SOFAR PowerAll ESI single-phase family: the manufacturer’s ESI 3–6K-S1 documentation shows a DDSU666 meter-and-CT connection option.

Product information

  • Manufacturer: SOFAR / CHINT
  • Model: DDSU666
  • Manufacturer part number / SKU: 900020700013-0
  • Supply: single-phase (230V nominal)
  • Measurement: current-transformer (CT) connected
  • Included CT: 200A/40mA, as identified for this part number in the supplier catalogue
  • Communication: RS485
  • Mounting: 35mm DIN rail

Adding battery storage to existing solar panels?

The DDSU666 is a separately available metering accessory for installations where the SOFAR PowerAll inverter is configured to use a meter-and-CT arrangement. The ESI inverter family also supports a CT-only configuration, so the separate smart meter is not required for every installation. Confirm the appropriate setup with the installer before ordering.

See the SOFAR PowerAll inverter and battery storage system for one-, two- or three-battery packages. The meter is not automatically included with the bundle.

What's included and compatibility

One DDSU666 single-phase meter and its specified 200A/40mA CT. Inverter, batteries, electrical enclosure, installation and any additional accessories or communication cables are not included. This is not the three-phase DTSU666 model, or the direct-connected 5(80)A DDSU666 version.

Installation note: Professional electrical installation and inverter configuration are required. Check the intended inverter firmware and meter/CT configuration against the SOFAR installation instructions before ordering. A compatible inverter may already have a CT fitted; a separate meter is not necessarily required for every installation.

SOFAR ESI 3–6K-S1 official installation manual

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  • £4.99 for small packages (Under 0.8kg)
  • £5.99 for orders under £250.
  • £5.99 for orders under £50.

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