Analog temperature controller, BTC-404/704


BC-404, BC 704: Temperature controllers with digital display. Front panel setpoint knob dial for Thermocouple is 0-400°C and RTD (PT100) is 0-100°C

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Analog controllers

Low Cost and Reliable Easy operation – other ranges to 1200°C. Brainchild has a full range of analog set controllers in all sizes 48, 72 and 96mm. We stock the most common, and can convert to other ranges before shipment. These controllers have relay with proportional control, conversion to Logic [for SSR] and on/off control are possible before shipment [charges apply].

The standard inputs are K, J and Pt100. Range changes require solder links and a new analog scale so must be set up before shipment.

  • Type J, K, or Pt100 inputs
  • Proportional or on/off control – solder link selected
  • Alarms included in -25… series part numbers
  • Digital display
  • Relay or SSR control output – (Relay standard)
  • Range changes possible – before shipment
BC-404 dimension : 96(W) X 96(H) X 53mm (depth behind panel) Panel cutout : 92 X 92mm

BC-704 dimension : 72(W) X 72(H) X 65mm (depth behind panel) Panel cutout : 68 X 68mm

Downloads:   Data sheet:   (404)       (704)

Additional information


96 x 96, 72 x 72


PT100, K type TC, J type TC


Relay, SSR