HUAWEI - 100A Three-Phase Meter

The Huawei DTSU666-H is a three-phase (3P4W) power sensor designed for integration into residential and C&I photovoltaic installations for measuring energy flow. Unlike the DTSU666-HW/YDS60-80, which operates in direct measurement mode up to 80 A, the DTSU666-H exclusively uses current transformers and covers a range of 0 to 250 A per phase.

The kit includes the meter, three 250 A / 50 mA current transformers (CTs) with 5 m cables, and a 10 m RS485 cable . The CTs are positioned around the phase conductors at the main distribution board (MDB) or the point of delivery, without interrupting the power circuit. This non-intrusive installation makes it suitable for commissioning on existing distribution boards.

Class 1 measurement accuracy (+/- 0.5% voltage, +/- 1% current) and Modbus-RTU protocol over RS485 (9600 bps) ensure compatibility with the Huawei FusionSolar ecosystem. Integrated LCD screen for on-site reading.

DIN35 rail, 100 x 72 x 65.5 mm, 1.5 kg. Input voltage 176 to 288 Vac, line voltage 304 to 499 Vac. Power consumption less than or equal to 1 W. Operating temperature -25 °C to +60 °C, humidity 5 to 95% RH.

KEY POINTS FOR PROFESSIONALS

• Non-intrusive measurement via 3 supplied TC 250 A / 50 mA (5 m cables), without circuit interruption.

• Current range 0 to 250 A per phase , suitable for high power C&I and residential installations.

• Accuracy class 1, Modbus-RTU / RS485, FusionSolar compatible.

• DIN35 rail, 100 x 72 x 65.5 mm, 1.5 kg, power consumption less than or equal to 1 W.

• 10m RS485 cable included, integrated LCD screen.

• Operating temperature range: -25 °C to +60 °C.

ADDED VALUE POWR CONNECT

POwR Connect ensures delivery of the DTSU666-H throughout France with delivery times adapted to site constraints. Our sales engineers advise installers on the positioning of the current transformers in the panel and the choice of meter according to the intensity of the site: DDSU666-H in single-phase (100 A), DTSU666-H in three-phase via current transformer (250 A), or DTSU666-HW/YDS60-80 in direct three-phase (80 A).