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ACREL 1-3 Channel Temperature & Humidity Controller

ACREL 1-3 Channel Temperature & Humidity Controller

From $249.00Sale Price
ACREL 1-3 Channel Temperature & Humidity Controller is a one to three channels digital temperature and humidity controller for monitoring and controlling environmental conditions in electrical equipment. It supports temperature measurement from -40.0 °C to 99.9 °C and humidity measurement from 0%RH to 99%RH, with configurable heating, fan and humidity control functions. The controller supports AC/DC 85-265V auxiliary power and, depending on the selected auxiliary function, can provide RS485 Modbus RTU communication or analogue transmitting output.
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The ACREL 1-3 Channel Temperature & Humidity Controller provides multi-channel monitoring and automatic environmental control for electrical equipment.

The controller can accommodate one to three WH-3 sensors, allowing temperature and humidity conditions to be monitored across three channels. Each sensor channel can operate associated heating and fan control contacts. Heating can be used to raise temperature or remove moisture, while fan control is used to reduce temperature.

The controller is intended for applications such as high-voltage switchgear, terminal boxes, ring network panels and box-type transformer substations. By responding to configured temperature and humidity conditions, it can help reduce problems associated with excessive moisture, condensation and unsuitable temperatures within enclosed electrical equipment.

How it works

  • The connected WH-3 sensors measure the temperature and humidity inside the monitored equipment.
  • The WHD46 compares the measured conditions with the configured control parameters.
  • When the programmed conditions are reached, the relevant relay contacts operate connected heating or fan equipment.
  • Heating can be used for temperature rise and moisture removal, while fan operation can reduce temperature.
  • The three sensor channels can be monitored through the controller's digital display.
  • The WHD46 series manual identifies RS485 communication, transmitting output and alarm output as auxiliary-function options for the WHD46, with the selected function depending on the model configuration.

Why choose this product?

  • Three-channel monitoring - suitable where conditions need to be monitored at multiple points within electrical equipment.
  • Automatic environmental control - configured temperature and humidity thresholds can operate connected heating or fan equipment.
  • Flexible communication options - the WHD46 series supports RS485 Modbus RTU where the communication option is selected.
  • Wide auxiliary supply range - supports AC/DC 85-265V auxiliary power.
  • Designed for electrical equipment - developed for applications including switchgear and transformer-related enclosures.

Benefits

The ACREL 1-3 Channel Temperature & Humidity Controller combines measurement, display and control in a single panel-mounted unit. Its three-channel design can reduce the need for separate controllers when several locations within an electrical installation require environmental monitoring.

The configurable heating and fan control functions also allow the controller to respond automatically to changing conditions rather than relying solely on manual intervention.

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