SIEMENS RWF50.21A9 UNIVERSAL CONTROL DEVICE

General Description:
The SIEMENS RWF50.21A9 is a universal, digital microprocessor-based controller designed for precise control of temperature, pressure, or similar process variables. It is particularly suited for burner and boiler systems, utilizing a PID control algorithm for accuracy and stability.

Technical Specifications:

• Model: RWF50.21A9

• Power Supply: 230 V AC, 50/60 Hz

• Inputs:

  • 1 x Universal input (Pt100, Thermocouple, 0/4-20 mA, 0-10 V)

• Outputs:

  • 1 x Relay output (SPDT)

  • 1 x Analog output (0-10 V or 4-20 mA)

• Control Type: PID, ON/OFF, modulating

• Display: 4-digit LED display

• Mounting Type: Panel mounting (96 x 96 mm)

• Protection Class: IP20 (unit), IP54 (front panel)

• Operating Temperature: 0°C to +55°C

• Communication: Not available

• User Interface: Menu-driven front keypad, easy to operate

Applications:

• Burner control systems

• Boiler temperature/pressure control

• Industrial process heating regulation

• HVAC systems

• Automation panels

Advantages:

• Precise PID control

• Supports universal input types

• Compact and panel-friendly design

• High compatibility with Siemens systems

• User-friendly setup and operation