Schneider Electric (Barber Colman) 2354-504 Relay

The Schneider Electric (Barber Colman) 2354-504 Relay is a rugged, snap-acting pneumatic diverting relay engineered for precise signal routing in demanding pneumatic control systems. This heavy-duty DPDT switching module is a staple for service contractors managing complex sequences where dual-circuit control is required. Factory-calibrated for an 18-22 psig setting (with operational logic shifting at 16-19 psig thresholds), the 2354-504 ensures seamless transitions: when pressure falls below 16 psig, NO and C terminals are connected (along with NO2 and C2); as pressure rises above 19 psig, the relay diverts to connect NC and C (and NC2 with C2). Built for high-performance signal switching, it maintains a substantial 60 SCFH air capacity and is designed for the pneumodular manifold system. The unit features integrated barbed nipples compatible with both 1/4" O.D. and 5/32" I.D. pneumatic tubing, allowing for straightforward integration into existing commercial HVAC logic loops or industrial automation lines.

• Dual-Pole Switching: The DPDT configuration allows for simultaneous control of two independent pneumatic signals from a single pilot source.
• High Airflow Throughput: A 60 SCFH capacity ensures rapid response times and reliable actuation in large-scale HVAC automation systems.
• Versatile Mounting: Part of the pneumodular system, this relay supports standard manifold mounting or can be surface-mounted using adhesive-backed bases and straps.
• Precise Troubleshooting: Clear switching logic between 16 and 19 psig simplifies pneumatic diagnostics and sequence verification during PM calls.

What tubing is compatible with the 2354-504?
This relay is designed with universal barbed nipples that securely fit 1/4" O.D. or 5/32" I.D. pneumatic tubing, providing flexibility for different field installations.

Can this relay be used for vacuum signals?
Yes, the Schneider 2354-504 is rated for diverting airflow, vacuum, and other non-corrosive pneumatic signals within industrial control environments.

Is this unit compatible with Barber Colman R504-4 models?
Yes, the 2354-504 is the direct technical replacement for the legacy Barber Colman R504-4 diverting relay, maintaining identical footprints and port logic.

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.