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TTC 25 • Triac controllers

Triac controller for DIN-rail mounting with setpoint adjustment for controlling 3-phase electric heating batteries, it is necessary to connect an external sensor to the controller. This can be an NTC sensor as well as 0-10V.

Application

  • Electric heating batteries

Specifications

  • Possible to connect 230 V or 400 V 3-phase electric heaters
  • Maximal load: 9,5 kW (230V) or 16,5 kW (400V)
  • Room temperature control: for slow temperature changes, works as P-controller (P = 2K)
  • Supply air temperature control: for rapid temperature changes, works as PI-controller (P = 20K, reset time = 6 min)
  • Settable cycle time: 6 to 60 s
  • Min/max limit possible: 0 to 60°C

Mounting

  • DIN-rail

Accessoires

  • Duct temperature sensors, type TG-K330
  • Room temperature sensors, type TG-R530
  • Min/max temperature sensors, type TG-K360
  • Room temperature sensors for external setpoint, type TG-R430

Technical data

  • Supply voltage : 230V AC or 400V AC, 3-phase. Automatic adaptation
  • Current : minimum 3 A - maximum 25 A
  • IP 20
  • Proportional band : 2K fixed (room control) / 20K fixed (supply air temperature control)
  • Reset time : 6 minutes, fixed (supply air temperature control)
  • Pulse period : 6 to 60 s
  • LED indication on the controller when the output is active
  • Two inputs for NTC sensors, one main sensor and one min/max limit
  • One input for an external 0-10V signal
  • Setpoint : selectable, either internal or external

Function

  • The controller pulses the entire power output ON/OFF. The controller utilises time-proportional control, the ratio between On-time and Off-time is varied to fit the prevailling heating requirement (exemple ON = 30s and OFF = 30s gives 50 % output power).

Settings

  • Setpoint range : 0 to 30°C, the choice of sensor determines the controller setpoint range
  • Minimum limit : 0 to 30°C
  • Maximum limit : 20 to 60°C
  • Cycle time : 6 to 60 s

Articles

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L1 (Exterior) [mm]
H1 (Exterior) [mm]
Article number Type L1 (Exterior) [mm] H1 (Exterior) [mm] E-shop
A080201170170 VK 170 X 170 170 170
A080201200200 VK 200 X 200 200 200
A080201240240 VK 240 X 240 240 240
A080201290290 VK 290 X 290 290 290
A080201355355 VK 355 X 355 355 355
A080201390390 VK 390 X 390 390 390
A080201440440 VK 440 X 440 440 440
A080201490490 VK 490 X 490 490 490
A080201540540 VK 540 X 540 540 540
A080201590590 VK 590 X 590 590 590
A080201670670 VK 670 X 670 670 670
A080201750750 VK 750 X 750 750 750
A080201840840 VK 840 X 840 840 840
A080201940940 VK 940 X 940 940 940
A080201A40A40 VK 1040 X 1040 1040 1040
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Dimensions

  • (W x H x D) : 192 x 198 x 95 mm
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