Solar Controller SDC 306, incl. 3 Sensors

This solar controller can be used with many types of system. Independently of the usage scenario, the unit has the following standard features: 

•  4 (1 potential free) outputs and 5 inputs
•  Priority and parallel stoarge tank loading
•  Integrated operating-hours counter for storage tank loading
•  Easy, menu-driven operation using icons and four control buttons.
•  All presets and control values can be set digitally
•  Powerful system monitoring functionality, with errors and faults displayed using icons and simple text
•  Energy output measurement: with output measurement set (optional accessory) or estimated
•  Indefinite storage of all configured values if power supply fails.
•  A variety of protective features, such as:  
- System protection  
- Collector protection

General control functions

• Load storage cylinder
• Yield estimation / yield metering
• Password
• Auxiliary heating
• Estimated solar yield
• Increase in return line temperature
• Return line monitor
• Thermal transfer
• Pump block protection
• Solid fuel boiler
• Swimming pool heating/secondary storage cylinder
• Priority switching
• Impulse-controlled circulation
• Thermal circulation
• Anti-Legionnaire’s disease function  

There are 19 main configurations for solar control unit SDC 306. Output A1 is switched via the solar control circuit. The two outputs A3 (230V) and A4 (potential-free) are switched in parallel via the control circuit R2. Output A2 is switched via the control circuit R3. :

The device is made in Germany.

What is in the box:
Solar controller
Manuals in German, English, French
2x PT1000 temperature sensors, (PVC cable, brass sleeve L=25mm d=6mm)
1x PT1000 temperature sensor, (collector sensor with silicone cable, brass sleeve L=25mm d=6mm)

Specifications: