Honeywell RP819B1010 Electric Pneumatic Relay 24VAC Panel Mount

The Honeywell RP819B1010 is an electrically operated pneumatic relay designed to interlock electrical systems with pneumatic control systems in HVAC applications. This 24VAC panel-mounted relay operates at 50Hz frequency and features 15-inch lead wires for convenient installation.

Key Features:

• Versatile operation as a diverting relay, selector relay, or stop and bleed relay
• Three-way switching: When energized, ports 1 and 3 connect with port 2 blocked; when de-energized, ports 2 and 3 connect with port 1 blocked
• Can be mounted and operated in any position without affecting performance
• Barb fittings accommodate 1/4 inch (6mm) plastic tubing for air connections
• Direct replacement for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell devices

Technical Specifications:

• Voltage: 24VAC, 50Hz
• Power Consumption: 12.5VA inrush, 7.1VA holding
• Maximum Supply Air: 50 PSI (345 kPa)
• Airflow Capacity: 0.42 SCFM (200 mL/s) at 20 PSI supply with 1 PSI pressure drop
• Capacity Index (Cv): 0.075 minimum
• Dimensions: Approximately 2-7/8 in. H x 1-3/4 in. W x 1-1/4 in. D

This relay is commonly used in HVAC applications including damper control, pneumatic actuators, and valve systems where electrical and pneumatic system integration is required.