Honeywell RP471A1002 SPDT Snap-Acting Pneumatic Relay 3-13 PSI

The Honeywell RP471A1002 SPDT Snap-Acting Pneumatic Relay is a pressure-responsive switching type of part, which has been used in HVAC control systems. It is capable of operating below 3-13 psi to produce one pole two-pole electric power to signal or control other parts. It is typically mounted on air handling units, economizers, and pneumatic control networks and is utilized to relay an indication of the feedback dampers or safety circuits. It will be applied to automatically regulate and coordinate more HVAC units depending on the pressure, and assists to ensure the appropriate work of the system and its stability.