RDU340

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Overview of Siemens RDU340 Semi-Flush Mount Room Thermostat

The Siemens RDU340 is a semi-flush mount room thermostat designed for controlling temperature in Variable Air Volume (VAV), Constant Air Volume (CAV), Air Handling Unit (AHU), and universal heating and cooling systems. It offers modulating PI control with outputs for DC 0-10 V actuators and AC 230 V electric heaters, ensuring precise room climate regulation and energy efficiency.

Key Features

  • Modulating PI control based on room or return air temperature for accurate temperature management.
  • Outputs include DC 0-10 V for actuators and AC 230 V for on/off electric heaters.
  • Automatic or manual heating/cooling changeover with selectable operating modes: Comfort, Economy, Protection.
  • Two multifunctional inputs configurable for keycard contact, external sensors, or alarms.
  • Adjustable minimum and maximum setpoint limitations for energy-saving control.
  • Display shows current room temperature or setpoint in °C or °F with key lock function.
  • Simple installation on recessed rectangular conduit boxes with 60.3 mm fixing centers.
  • Operating voltage of AC 24 V and low power consumption (max 8 VA).

Technical Specs

Specification Details
Model RDU340
Control Type Modulating PI
Outputs DC 0-10 V actuator output, AC 230 V heater output
Inputs 2 multifunctional (keycard, sensor, alarm)
Operating Modes Comfort, Economy, Protection
Setpoint Range 5°C to 40°C adjustable
Power Supply AC 24 V ±20%
Power Consumption Max 8 VA
Mounting Semi-flush rectangular conduit box (60.3 mm fixing centers)
Protection Class IP20
Operating Temperature 0 to 50°C

Applications / Use Case

Used for room climate control in commercial and industrial HVAC systems, including VAV, CAV, and AHU applications, providing efficient and flexible temperature regulation.

Siemens offers comprehensive support and warranty for reliable performance and easy integration.

RDU340

$0.00

  • ACHIEVING

    4.0

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    95%

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  • LESS THAN

    1%

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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