RESOL DeltaSol BX Solar Thermal Control With 5 Sensors

RESOL DeltaSol BX Solar Thermal controller, 100~240 VAC ( Incl. 5 Temp Sensors)
Part Number: 115 450 17
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The Resol DeltaSol BX has 26 preprogrammed system layouts and extra large display. 5 PT1000 temperature sensor terminals, 2 PWM terminals, 2 grundfos analog sensor ports and 4 semiconductor relay outputs are equiped and executing functions in the controller include Delta T control, pump speed control, pump PWM control, cooling modes, tank loading priority logic, energy metering and more.


  • 4 relay outputs and 5 Pt1000 temperature sensor inputs
  • 2 inputs for analogue Grundfos Direct Sensors
  • 2 PWM outputs for the speed control of high-efficiency pumps
  • 26 basic systems to choose from DeltaSol® BX 
  • Drainback option DeltaSol® BX 
  • Thermal disinfection function, heat dump function
  • Unit °C and °F are both available!

Technical Specifications: 

Inputs: 5 Pt1000 temperature sensors, 1 V40 impulse input, 2 Grundfos Direct Sensors™ (analogue)
Outputs: 3 semiconductor relays, 1 electromechanical relay and 2 PWM outputs
PWM frequency: 512 Hz
PWM voltage: 10,8 V
Switching capacity: (1) A 240 V~ (semiconductor relay)
4 (1) A 240 V~ (electromechanical relay)
Total switching capacity: 4 A 240 V~
Power supply: 100 ... 240 V~, 50-60 Hz
Supply connection: type Y attachment
Standby: 0.57 W (DeltaSol® BX)
Temperature controls class: I
Energy efficiency contribution: 1 %
Mode of operation: type 1.B.C.Y action
Rated impulse voltage: 2.5 kV
Data interface: RESOL VBus®, SD card slot
® current supply: 35 mA
Functions: functionality control, operating hours counter for the solar pump, evacuated tube collector function, thermostat function, pump speed control, energy metering
Housing: plastic, PC-ABS and PMMA
Installation: wall mounting, mounting into patch panels is possible
Indication/Display: System-Monitoring for visualization of the systems, 16-segment- and 7-segment display, 8 symbols for indication of the system status and operating control lamp
Operation: 7 push buttons at the front
Ingress protection: IP 20 / EN 60529
Protection class: I
Ambient temperature: 0 ... 40 °C / 32 ... 104 °F
Pollution degree: 2
Dimensions: 198 x 170 x 43 mm / 6.69" × 7.79" × 1.69"
Bus: RESOL VBus®

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