GoodWe SEC1000S Smart Energy Controller

The SEC1000S is a smart energy controller developed by GoodWe for three-phase, three-wire (four-wire) AC systems. It combines a three-phase meter with Ezlogger Pro functionality to enable real-time data collection, analysis, and control of GoodWe solar inverters. The device can automatically adjust active power output, power factor, and AC output limits, while supporting system-wide monitoring and reactive power compensation.

The SEC1000S communicates with inverters via RS485 (up to 1,000 m over shielded twisted-pair cable) and supports up to 60 inverter units. It features LAN and GPRS connectivity for remote communication and system integration with SEMS platforms. Rated power consumption is under 10 W, with input voltage ranges of 60–280 V (phase) or 100–480 V (line), 50/60 Hz operation, and an input current range of 0–5 A.

Housed in an IP65-rated enclosure measuring 420 × 320 × 131 mm and weighing 4 kg, the SEC1000S operates at temperatures from –25 to 60 °C and has a boot time of up to 3 seconds. It is suitable for GoodWe ET and BT series inverters (5–10 kW/kN range) and is sold without current transformers (CTs).