SunGuard - Model SG-QDC24/12 - String Box

SunGuard String Box of 24 strings monitored through 12 channels to 50A, IP66, RS485.

The String Box SunGuard (square field) are designed to be installed on any type of inverter and PV system.

The String Boxes are made to monitor the current string and can be equipped with release coil, remote signaling of the arrester and the disconnecting switch 250A.

They communicate with SunGuard Box through the RS485 serial port and need to 230VAC power.

Inside the String Box SunGuard, are available: 24VDC power supply and a serial port, to connect one or more SunGuard Sensor Box.

The SunGuard String boxes are easy to install and simple to configure.

• Maximum input current : 24 x 12A
• Maximum output current : 250A
• Maximum voltage : 1000Vdc
• Input Terminals : 24+24 (screw terminals)
• Output Terminals : 2 terminal bar
• Level of protection : IP66
• Operating Temperature : -20°C/+45°C
• Isolation between power and control : 2500Vac
• Protections : 
• Surge protection
• type 2
• 1000V maximum
• Configuration with three varistors
• self-protected
• General load output 4x250A (2 poles in parallel)
• String fuses 10A 1000Vdc 10x38
• Communication : RS 485
• Speed : 9600 bps
• Directing : From 1 to 254 mechanical
• Sensor : 12 Hall sensors 50A Max for 2 inputs
• Indicator lights : 
• LED indication of current active
• LED 24Vdc
• Power In : 230Vac auxiliary
• Power Out : 24Vdc, 1.7A
• Isolation under field8 : Class 2; double insolation
• Dimensions : 590x855x360
• Incoming cables : max 24 x 6 mmq (gland)
• Output Cables : max 2 x 240 mmq (gland)
• Optional : Release coil