Siemens Building Technology 243-0019 Relay

The Siemens 243-0019 Signal Selector Relay is a specialized pneumatic control component engineered to select and transmit the highest or lowest signal from up to six independent pneumatic inputs. Designed for maximum reliability in complex HVACR systems, this high-low signal selector features a compact mounting bracket for streamlined installation within control panels or terminal units. As a versatile pneumatic relay, it ensures precise signal arbitration, preventing system hunting and maintaining optimal control loop stability. Professional technicians recognize the 243-0019 as the direct engineered replacement for legacy RCC-1111 and RCC-1011 models, facilitating seamless retrofits without requiring extensive piping reconfigurations. The internal diaphragm and valve assembly are built for rigorous multi-input signal selection, providing consistent performance in various building automation sequences. By integrating this Siemens building technology relay, contractors can ensure accurate pressure modulation and robust system logic in demanding pneumatic environments.

Key Benefits

• Multi-Input Logic: Processes up to six pneumatic signals to determine the dominant control requirement.
• Direct Retrofit Compatibility: Specifically designed to replace obsolete RCC-1111 and RCC-1011 signal selectors.
• Durable Construction: Features high-grade materials to withstand technical demands of industrial and commercial pneumatic loops.
• Simplified Installation: Includes a factory-configured mounting bracket for secure positioning in high-vibration environments.

Common Questions

What is the primary function of the 243-0019 in a pneumatic system?
It serves as a signal comparator that identifies the highest or lowest pressure among six inputs to drive a single output, often used in multi-zone heating or cooling priority logic.

Can this relay replace the RCC-1011 series?
Yes, the 243-0019 is the manufacturer-specified replacement for both the RCC-1011 and RCC-1111 series signal selectors.

What mounting options are available for this device?
This unit comes equipped with a mounting bracket suitable for surface mounting in control enclosures or direct attachment to terminal equipment frames.

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.