Solar Controller SDC 307 incl. 1 collector and 2 storage sensors View larger

Solar Controller SDC 307 incl. 1 collector and 2 storage sensors


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Solar controller SDC 307, 3 230 V AC outputs, 7 sensor inputs

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In stock

Warning: Last items in stock!

129,00 € VAT included

1 kg
Delivery: 3-7 days

Data sheet

Inputs (sensors)6
RPM controlYes
Energy YieldYes
Collector protectionYes
Frost protectionYes
Tube collectors functionYes
Recooling (holiday mode)Yes
Free Controller1

More info

SDC 307 controllers are high-performance microprocessor-controlled units for controlling the functions of solar thermal systems. The SDC 307 perfectly controls solar power systems equipped with up to two collector arrays or two storage tanks and can be used for numerous system types.

The controller is equipped with the following features:
- Intuitive operating menu with graphic symbols and four operating buttons  
- Illuminated display  
- Adjustable control values  
- Solar circuit pump RPM control or switching control  
- Start function for systems equipped with tube collectors  
- Integrated operating hours counter for storage tank charging  
- Extensive functions for system monitoring that display symbols to indicate errors and faults
- Integrated energy yield measurement   
(optional, only in conjunction with the yield measurement set)
- Storage of all values even during a prolonged mains power supply outage  
- Various protective functions, such as system protection, collector protection, recooling and anti-freeze protection
- Individually operated independent controller that can be programmed with three time frames
- Generous wiring space  
- Real-time clock function

Multi-funktional regulator
This function is reserved for output 3 and can be allocated the following functions:
- Cooling  
- Heating   
- Difference controller  
The temperature sensor for the temperature source can be selected as required.


1 Kollektorfeld, 1 Speicher und Variantenbeispiele mit dem freien Regler

1 Kollektorfeld, 2 Speicher, Pumpe - Ventil

1 Kollektorfeld, 2 Speicher, 2 Pumpen

2 Kollektorfelder, 1 Speicher, Pumpe - Ventil

2 Kollektorfelder, 1 Speicher, 2 Pumpen

What is in the box:

Manuals German and English, French ans Spanisch as PDF

The device is made in Germany.


Material100% recyclable ABS housing for wall mount-
Dimensions L x W x D in mm, weight175x134x56 mm; 360g
Protection classIP20 according to DIN 40050, EN 60529
Electrical specifications 
Operating voltageAC 230 Volt, 50 Hz -10...+15%
Fuse protectionFine-wire fuse 5 x 20mm, 2A/T  
(2 amperes, delayed-action fuse) 
Max. cable cross-section 
230V connections
2.5 mm² fine-wire/single wire
Radio interference levelN according to VDE 0875
Temperature sensor /  
measuring range
PT1000, 1 kOhm at 0°C 
-30°C .. +250°C
Testing voltage 4 kV 1 min according to EN 60730/DIN, VDE
0631, IEC 60664/IEC
Output Voltage
Power of each switching output
Total power of all outputs
1A / approx. 230VA for cos φ = 0.7-1.0
2A / approx. 460VA maximum
Operating temperature0 ... + 50°C
Storage temperature-10 ... + 65°C
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