Siemens Building Technology 243-0001 Switching Relay
The Siemens Building Technology 243-0001 Switching Relay is a rugged, pilot-operated pneumatic relay designed for reliable two-position switching within complex HVAC pneumatic control systems. Engineered for 3-way air valve functionality, this auxiliary device allows for the efficient diverting of a common part between two independent pneumatic circuits. As a veteran technician knows, the adjustable changeover pressure—factory calibrated at 9 psi but field-adjustable from 3 to 25 psi—is critical for fine-tuning system response. The unit features standard 1/8" NPT threaded ports and a nominal changeover differential of 1.5 psi, making it a reliable choice for applications requiring a low-differential switch triggered by a gradual input signal. Whether you are managing terminal unit controls or large-scale air handling logic, the 243-0001 relay provides a high-performance solution for pneumatic signal management.
Key Benefits- Versatile Application: Functions effectively as a 3-way diverting valve or a pilot-operated switch for diverse pneumatic logic requirements.
- Precise Control: Features a factory-calibrated 9 psi setpoint with a broad 3 to 25 psi adjustment range to meet specific site requirements.
- Durable Construction: Rated for ambient temperatures ranging from -20°F to 160°F, ensuring performance in demanding mechanical rooms.
- Easy Installation: Includes a versatile mounting bracket suitable for either vertical or horizontal surface orientation.
- Low Differential Performance: Designed to provide a tight 1.5 psi nominal differential, crucial for responsive signal switching.
How do I adjust the changeover point on this relay?
Using an Allen wrench, turn the adjustment screw clockwise to increase the pressure setpoint or counterclockwise to decrease it within the 3 to 25 psi range.
Can this relay handle high-capacity airflow?
The 243-0001 is a low-capacity device often requiring a restrictor on the output port. For high-capacity needs, technicians typically use two relays in a pilot configuration.
What size fittings does this unit require?
This relay uses standard 1/8" NPT threaded connections for all pneumatic ports.
This item is not eligible for free shipping.
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 243-0001 Switching Relay
The Siemens Building Technology 243-0001 Switching Relay is a rugged, pilot-operated pneumatic relay designed for reliable two-position switching within complex HVAC pneumatic control systems. Engineered for 3-way air valve functionality, this auxiliary device allows for the efficient diverting of a common part between two independent pneumatic circuits. As a veteran technician knows, the adjustable changeover pressure—factory calibrated at 9 psi but field-adjustable from 3 to 25 psi—is critical for fine-tuning system response. The unit features standard 1/8" NPT threaded ports and a nominal changeover differential of 1.5 psi, making it a reliable choice for applications requiring a low-differential switch triggered by a gradual input signal. Whether you are managing terminal unit controls or large-scale air handling logic, the 243-0001 relay provides a high-performance solution for pneumatic signal management.
Key Benefits- Versatile Application: Functions effectively as a 3-way diverting valve or a pilot-operated switch for diverse pneumatic logic requirements.
- Precise Control: Features a factory-calibrated 9 psi setpoint with a broad 3 to 25 psi adjustment range to meet specific site requirements.
- Durable Construction: Rated for ambient temperatures ranging from -20°F to 160°F, ensuring performance in demanding mechanical rooms.
- Easy Installation: Includes a versatile mounting bracket suitable for either vertical or horizontal surface orientation.
- Low Differential Performance: Designed to provide a tight 1.5 psi nominal differential, crucial for responsive signal switching.
How do I adjust the changeover point on this relay?
Using an Allen wrench, turn the adjustment screw clockwise to increase the pressure setpoint or counterclockwise to decrease it within the 3 to 25 psi range.
Can this relay handle high-capacity airflow?
The 243-0001 is a low-capacity device often requiring a restrictor on the output port. For high-capacity needs, technicians typically use two relays in a pilot configuration.
What size fittings does this unit require?
This relay uses standard 1/8" NPT threaded connections for all pneumatic ports.
This item is not eligible for free shipping.
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
Shipping & Returns
Shipping & Returns
Description
The Siemens Building Technology 243-0001 Switching Relay is a rugged, pilot-operated pneumatic relay designed for reliable two-position switching within complex HVAC pneumatic control systems. Engineered for 3-way air valve functionality, this auxiliary device allows for the efficient diverting of a common part between two independent pneumatic circuits. As a veteran technician knows, the adjustable changeover pressure—factory calibrated at 9 psi but field-adjustable from 3 to 25 psi—is critical for fine-tuning system response. The unit features standard 1/8" NPT threaded ports and a nominal changeover differential of 1.5 psi, making it a reliable choice for applications requiring a low-differential switch triggered by a gradual input signal. Whether you are managing terminal unit controls or large-scale air handling logic, the 243-0001 relay provides a high-performance solution for pneumatic signal management.
Key Benefits- Versatile Application: Functions effectively as a 3-way diverting valve or a pilot-operated switch for diverse pneumatic logic requirements.
- Precise Control: Features a factory-calibrated 9 psi setpoint with a broad 3 to 25 psi adjustment range to meet specific site requirements.
- Durable Construction: Rated for ambient temperatures ranging from -20°F to 160°F, ensuring performance in demanding mechanical rooms.
- Easy Installation: Includes a versatile mounting bracket suitable for either vertical or horizontal surface orientation.
- Low Differential Performance: Designed to provide a tight 1.5 psi nominal differential, crucial for responsive signal switching.
How do I adjust the changeover point on this relay?
Using an Allen wrench, turn the adjustment screw clockwise to increase the pressure setpoint or counterclockwise to decrease it within the 3 to 25 psi range.
Can this relay handle high-capacity airflow?
The 243-0001 is a low-capacity device often requiring a restrictor on the output port. For high-capacity needs, technicians typically use two relays in a pilot configuration.
What size fittings does this unit require?
This relay uses standard 1/8" NPT threaded connections for all pneumatic ports.
This item is not eligible for free shipping.
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.
