String box 6QPSC002B

MAIN FEATURES • Parallel connection of (up to) 16 strings by 9A each (8 channels) • Local and remote indication of status and alarm conditions • RS232 and RS485 connections • One slot connection for expanding communication (e.g. Ethernet board) • Proprietary communication protocol and MODBUS RTU, both available on all the communication ports, no configuration necessary, hot-swap • Wide configurability of the monitoring parameters using the available software • Local history log of alarms and status • Protection fuses for each input, 1000Vdc on positive and negative • For each input is possible to connect wires up to 16mm2 • Output switch, with optional release coil, used for inverter detachment • Monitored discharger, used against over-voltage situations, protected against over-currents, easy to restore thanks to removable cartridges • Direct input power from PV field or from auxiliary • Insulated digital inputs for local monitoring • Insulated analog inputs for environmental sensors (2xPT100, 0-10V, 4-20mA) • Configurable digital outputs with free contacts • IP65 protection degree for external environment The parallel string box monitors the currents in photovoltaic modules and can promptly diagnose faults. The device is made of UV-resistant polyester resin and offers IP65 degree of protection. It has a general circuit breaker, type ABB T1D 160PV, to disconnect the photovoltaic field from the inverter and up to 16 strings (with a maximum input current per string of 9A) can be connected.