Description
The Schneider Electric (Barber Colman) 2353-501 is a Pneumodular Diverting Relay engineered for precise pneumatic signal switching in commercial HVAC and building automation systems. Designed to interface seamlessly within pneumatic control networks, this relay monitors incoming signal pressure and routes output to the appropriate port based on a user-defined set point — making it an essential component for diverting, sequencing, or switching pneumatic control signals.
How It Works
The 2353-501 continuously compares the incoming pneumatic signal against its configured set point. When the signal pressure falls below the set point, Ports NO (Normally Open) and C (Common) are connected, allowing flow through that circuit. When the signal pressure rises above the set point, the relay switches and Ports NC (Normally Closed) and C (Common) are connected instead. This clean, reliable switching action enables accurate control sequencing without electrical components.
Key Specifications
- Set Point Range: 3 to 20 Psig — adjustable across the full standard pneumatic control range
- Differential: 0.3 ± 0.1 Psig — tight, repeatable switching for precise control
- Signal Below Set Point: Ports NO and C are connected
- Signal Above Set Point: Ports NC and C are connected
- Pneumodular design for easy integration into modular pneumatic control panels
Features & Benefits
- Wide 3–20 Psig set point range covers virtually all standard pneumatic control applications
- Tight 0.3 ±0.1 Psig differential ensures accurate, repeatable switching with minimal deadband
- Diverting relay action supports NO and NC port configurations for flexible system design
- Pneumodular form factor simplifies installation and replacement in existing Barber Colman/Schneider Electric pneumatic control systems
- Reliable, all-pneumatic operation — no electrical power required at the relay itself
- Ideal for commercial HVAC, VAV systems, and building automation pneumatic control networks
Applications
- Pneumatic HVAC control systems in commercial and institutional buildings
- Signal diverting and switching in multi-zone pneumatic control networks
- Sequencing of pneumatic actuators, dampers, and valves
- Retrofit and replacement in existing Barber Colman Pneumodular control installations
Reviews
There are no reviews yet.