Steca Differential Temperature Controller 6 Inputs 3 Outputs

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TR 0603mc U
4.00 LBS
$14.95 (Fixed Shipping Cost)
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Advanced Thermal Solar
Steca Differential Temperature Controller

Steca TR 0603mc U

Controls Solar Thermal System with 1-3 storage tank


The equipment is connected inside the instlalation casing using either a plug & play solution for the mains and pump connections or alternatively 1/2 inch cut-outs.

As a particular highlight, the Steca TR 0603mc U stores the system's operational data on a SD card. The 40 pre-programmed systems and numerous additional functions allow universal use of the controller. The large graphic display shows the animated control circuits, which allows you to view the operating statuses of each system. The Steca TR 0603mc U has six inputs for recording temperatures or pulse values, as well as an extra Grundfos Direct Sensors input for combined temperature and flow rate measurement. Pumps and switching valves are controlled using three outputs, some of which can be speed controlled.

Product features

  • Compact, multipart designer casing
  • Electronic speed control
  • High level of operational safety through fault diagnosis
  • Hours-of-operation logger
  • Software update possible
  • Storage tank target temperature loading
  • Seasonal systems (loading of pool / storage tank according to the time of the year)
  • Daily pump start
  • Plug & play for 120 V AC mains and pump connections in installation casing
  • Screwed connections facilitate fast sensor installation
  • Integrated Steca TPC 1 bus
  • Multifunction graphical LCD display with backlighting
  • Animated representation of the systems and operating states
  • Multilingual menu navigation
  • Side switch for manual, auto, off
  • Installation casing with 1/2 inch cut-outs as an alternative to plug & play
  • Data logger on SD card
  • Heat quantity (Grundfos Direct Sensors, pulse generator, determination)
  • Heating return increase
  • Reduction of stagnation phases
  • Holiday (storage tank recooling)
  • Circulation (controller by temperature / time / pulse)
  • Back-up heating
  • Solid fuel boiler
  • Storage tank quick charge
  • Bypass
  • Thermostat
  • Differential thermostat
  • Timer
  • Interval / tube collector
  • Anti-freeze
  • Anti-legionella cyclical storage tank heating
  • Display storage tank top
  • Alarm output
  • Two loading zones
System Voltage 120 V AC, 60 Hz optional 240 V AC, 60Hz 
Own Consumption ≤ 1 W [≤ 0.003 HP] 
Inputs 6, 5 x temperature (pt1000)  1 x temperature (pt1000) or pulse
Additional Input 1 x Grundfos Direct Sensors (Temperature / flow rate)

3, 2 x triac for speed control (R1, R2),
max. 130 W / 0.17 HP (120 V AC)
1 x switch output relay (R3), max. 400 W / 0.5 HP
(120 V AC)
or R3 voltage free

Additional Output

1 x alarm output

Line Cord 75 inch, 3 x 18 AWG at 221 °F
Hydraulic Schemes 40
Interfaces SD card, RS232, RS485 (Steca TPC 1 bus)
Ambient Temperature 0 °C [+32 °F] ..... + 45 °C[+113 °F]
Degree of protection IP 20/ DIN 40050
Dimensions (X x Y x Z) 160mm x 157mm x 47mm (6.3" x 6.18" x 1.85")
Weight 350g (12.35 oz)
Data Logging SD card