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Process Controller, IR33 Series, Universal, 12 to 24 Vac, 12 to 30 Vdc, 2x Relay Outputs


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IR33W7LR20   Datasheet
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NTC, PTC, Pt1000






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Technical Documents (3)

Product Overview

The IR33W7LR20 from Carel is a universal electronic digital temperature controller with 2 relay output. IR33 controller can be programmed quickly using the optional programming key and reduces the risk of errors. Controller features a simple user interface, two independent control loops and it is housed in a compact panel mounting enclosure. This controller can be connected to a network for monitoring and programming using the optional RS485 serial interface.
  • NTC/PTC/PT1000 input
  • Auxiliary power of 12VAC to 24VAC, 12VDC to 30VDC
  • Frequency range from 50Hz to 60Hz
  • Plug-in terminals
  • Product weight of 220g
  • CE marked
  • IP65 enclosure case
  • Operating temperature range from -10°C to 50°C
  • Humidity of <90% rH (non-condensing)



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