StringBox. Where the field becomes measurement.

SG-QDC32/16

Intelligent StringBox, from 8 to 32 strings.

SunGuard String Boxes install on any type of inverter and plant. They monitor the current of each string and can be equipped with a shunt trip coil.

They communicate with the SunGuard Box via RS485 and integrate a 24VDC power supply and an additional serial port for one or more Sensor Boxes.

In summary

Measurement, protection, communication.

• From 8 to 32 inputs
• Measurement channels with Hall-effect or shunt sensors, up to 50A
• IP66 protection rating
• RS485 Modbus RTU communication at 9600 bps
• 4×280A disconnector and string fuses
• 230 VAC auxiliary power supply or directly from the PV field
• Class 2 double insulation

Data

Current and status, in real time.

The String Box communicates with the SGE datalogger via RS485 Modbus RTU. Current data for each string is acquired every 5 minutes, transmitted to the Operations Centre and made available on the cloud dashboard, with history and reporting.

Alarms

Before the drop in production becomes a mystery.

Production anomalies, tripped arresters or strings out of parameter generate alarms with configurable escalation — and notification to the NOC and, where provided, to the plant manager.