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Controllers


Controllers are essential devices used to regulate and control various systems and processes in industries, buildings, and homes. These devices offer precise and reliable control over parameters such as temperature, pressure, flow, and level, ensuring optimal performance and efficiency.

Controllers come in various types and models, each designed to cater to specific needs and applications. From basic on/off controllers to advanced programmable logic controllers (PLCs), there is a controller available for every level of automation and complexity.

With features like digital displays, user-friendly interfaces, and programmable settings, controllers make it easy for operators to monitor and adjust settings as needed. They play a crucial role in maintaining stable and consistent operation in systems such as HVAC, manufacturing processes, and energy management.

Whether you need a simple thermostat controller for your home or a sophisticated PLC for industrial automation, this category offers a wide range of options to meet your requirements. Choose from reputable brands like Siemens to ensure quality and reliability in your control systems.
  • Siemens RLA162

    Siemens RLA162

    Siemens RLA162 Siemens RLA162, electronic controller designed for room mounting applications. It is configurable for heating and/or cooling applications and can operate as a single controller or together with duct mounted units (RLM) for limiting...

    $125.88
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  • Siemens RDG165KN, S55770-T347 Room thermostat with KNX communications

    Siemens RDG165KN

    Siemens RDG165KN, S55770-T347 Room thermostat with KNX communications and built-in humidity sensor and humidity control, AC 24 V, for fan coil units and universal applications, heat pump, fan (1-/ 3-speed, DC), valves (2-point, DC) KNX communications...

    $226.98
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  • Siemens RDG160T, S55770-T343 Room thermostat

    Siemens RDG160T Replaced by RDG260T

    Siemens RDG160T, S55770-T343 Replaced by RDG260T Room thermostat, AC 24 V, for fan coil units (3-speed or ECM fan), universal applications and heat pump applications. 7-day time switch. Outputs DC 0..10V or ON/OFF Operating modes: Auto timer,...

    $0.00
  • Siemens RDG400KN, S55770-T165, Room thermostat with KNX communications

    Siemens RDG400KN Replaced by RDG405KN

    Siemens RDG400KN, S55770-T165 Replaced by RDG405KN Room thermostat with KNX communications, AC 24 V, VAV heating and cooling systems Datasheet The Siemens RDG400KN is a top-of-the-line room thermostat designed for heating and cooling systems. With KNX...

    $0.00
  • Siemens RDG110, S55770-T160 Room thermostat

    Siemens RDG110

    Siemens RDG110, S55770-T160 Room thermostat, AC 230 V, for fan coil units and heat pump applications Operating modes: Comfort, Energy Saving and Protection 2-position control outputs Automatic or manual fan speed 3 multifunctional inputs for keycard...

    $93.09
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  • Siemens RDG100, S55770-T158 Room thermostat

    Siemens RDG100

    Siemens RDG100, S55770-T158 Room thermostat, AC 230 V, for fan coil units and universal applications Operating modes: Comfort, Energy Saving and Protection 2-position, 3-position or PWM control outputs Automatic or manual fan speed 3 multifunctional...

    $112.27
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  • Siemens RDG400, S55770-T164 Room thermostat

    Siemens RDG400

    Siemens RDG400, S55770-T164 Room thermostat, AC 24 V, VAV heating and cooling systems Output DC 0…10 V for VAV actuator and auxiliary output ON/OFF, PWM or 3-position or 3-position for VAV actuator and auxiliary output DC 0...10 V 3...

    $121.08
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  • Siemens RDF800KN, S55770-T350 Touch screen room thermostat with KNX

    Siemens RDF800KN

    Siemens RDF800KN, S55770-T350 Touch screen room thermostat with KNX communications, for 2-/4- pipe fan coil, universal applications or compressors in DX-type equipment KNX communications Operating modes: Comfort, Economy and Protection For heating...

    $184.31
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  • Flush-mount room thermostat Siemens RDF302, S55770-T238

    Siemens RDF302

    Siemens RDF302, S55770-T238 Flush-mount room thermostat for rectangular conduit box with Modbus communications, 2-/4-pipe fan coils or DX type equipment Modbus communications For heating and/or cooling applications 2 or 3-position control outputs...

    $108.01
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