
Siemens Building Technology RDG400 Stat
The Siemens RDG400 is a versatile room temperature controller designed for 24V AC installations requiring precise 0-10V DC modulation or 3-point floating control. Engineered for demanding HVAC applications, this unit excels in managing VAV systems, small reheaters, and cooling equipment. Its multi-functional architecture allows for seamless integration into Building Automation Systems (BAS) using PI control logic to minimize temperature drift. The large backlit LCD provides real-time feedback on current setpoints and operating modes, including Comfort, Economy, and Protection. For technicians, the tool-free mounting and intuitive parameterization via the local interface streamline the commissioning process. Whether you are balancing airflow in a commercial zone or managing chilled beam applications, the Siemens RDG400 room thermostat ensures tight tolerances and long-term reliability in specialized thermal environments.
Key Benefits- Universal Control Outputs: Support for both modulating DC 0...10 V and 2-position/triac outputs for maximum field flexibility.
- Broad Setpoint Range: Adjustable range from 5...40 °C (41...104 °F) with field-lockable configuration to prevent unauthorized overrides.
- Versatile Inputs: Includes two multi-functional inputs for remote sensors, keycard contacts, or window switches to enhance energy efficiency.
- Durable Enclosure: Designed for wall mounting on standard electrical boxes with an IP30 protection rating.
How do I configure the RDG400 for a VAV application?
The controller features specific parameter sets for VAV with or without electric reheaters. Configuration is performed through the physical keypad by accessing the expert-level parameters to define the output signal scale.
Can this unit operate on both 24V AC and 24V DC?
The Siemens RDG400 is rated for 24V AC operating voltage. Ensure your transformer is sized correctly to handle the controller and any connected actuators or auxiliary loads.
Does it support manual changeover?
Yes, the unit supports manual or automatic heating/cooling changeover depending on the configuration of the multi-functional inputs and the specific application programmed.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Siemens Building Technology RDG400 Stat
The Siemens RDG400 is a versatile room temperature controller designed for 24V AC installations requiring precise 0-10V DC modulation or 3-point floating control. Engineered for demanding HVAC applications, this unit excels in managing VAV systems, small reheaters, and cooling equipment. Its multi-functional architecture allows for seamless integration into Building Automation Systems (BAS) using PI control logic to minimize temperature drift. The large backlit LCD provides real-time feedback on current setpoints and operating modes, including Comfort, Economy, and Protection. For technicians, the tool-free mounting and intuitive parameterization via the local interface streamline the commissioning process. Whether you are balancing airflow in a commercial zone or managing chilled beam applications, the Siemens RDG400 room thermostat ensures tight tolerances and long-term reliability in specialized thermal environments.
Key Benefits- Universal Control Outputs: Support for both modulating DC 0...10 V and 2-position/triac outputs for maximum field flexibility.
- Broad Setpoint Range: Adjustable range from 5...40 °C (41...104 °F) with field-lockable configuration to prevent unauthorized overrides.
- Versatile Inputs: Includes two multi-functional inputs for remote sensors, keycard contacts, or window switches to enhance energy efficiency.
- Durable Enclosure: Designed for wall mounting on standard electrical boxes with an IP30 protection rating.
How do I configure the RDG400 for a VAV application?
The controller features specific parameter sets for VAV with or without electric reheaters. Configuration is performed through the physical keypad by accessing the expert-level parameters to define the output signal scale.
Can this unit operate on both 24V AC and 24V DC?
The Siemens RDG400 is rated for 24V AC operating voltage. Ensure your transformer is sized correctly to handle the controller and any connected actuators or auxiliary loads.
Does it support manual changeover?
Yes, the unit supports manual or automatic heating/cooling changeover depending on the configuration of the multi-functional inputs and the specific application programmed.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Shipping & Returns
Description
The Siemens RDG400 is a versatile room temperature controller designed for 24V AC installations requiring precise 0-10V DC modulation or 3-point floating control. Engineered for demanding HVAC applications, this unit excels in managing VAV systems, small reheaters, and cooling equipment. Its multi-functional architecture allows for seamless integration into Building Automation Systems (BAS) using PI control logic to minimize temperature drift. The large backlit LCD provides real-time feedback on current setpoints and operating modes, including Comfort, Economy, and Protection. For technicians, the tool-free mounting and intuitive parameterization via the local interface streamline the commissioning process. Whether you are balancing airflow in a commercial zone or managing chilled beam applications, the Siemens RDG400 room thermostat ensures tight tolerances and long-term reliability in specialized thermal environments.
Key Benefits- Universal Control Outputs: Support for both modulating DC 0...10 V and 2-position/triac outputs for maximum field flexibility.
- Broad Setpoint Range: Adjustable range from 5...40 °C (41...104 °F) with field-lockable configuration to prevent unauthorized overrides.
- Versatile Inputs: Includes two multi-functional inputs for remote sensors, keycard contacts, or window switches to enhance energy efficiency.
- Durable Enclosure: Designed for wall mounting on standard electrical boxes with an IP30 protection rating.
How do I configure the RDG400 for a VAV application?
The controller features specific parameter sets for VAV with or without electric reheaters. Configuration is performed through the physical keypad by accessing the expert-level parameters to define the output signal scale.
Can this unit operate on both 24V AC and 24V DC?
The Siemens RDG400 is rated for 24V AC operating voltage. Ensure your transformer is sized correctly to handle the controller and any connected actuators or auxiliary loads.
Does it support manual changeover?
Yes, the unit supports manual or automatic heating/cooling changeover depending on the configuration of the multi-functional inputs and the specific application programmed.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












