Description
The Johnson Controls P100EE-78 is a heavy-duty encapsulated pressure control designed for reliable, direct-mount installation in demanding HVAC and refrigeration applications. With a single-pole double-throw (SPDT) switching action that opens on pressure rise, this control provides precise system protection and automatic reset capability — minimizing downtime and manual intervention.
Key Features
- Encapsulated design protects internal components from moisture, dust, and harsh environments
- Direct-mount configuration for straightforward installation on refrigerant lines and pressure ports
- SPDT switching action — opens on pressure rise for high-side pressure protection
- Automatic reset returns the control to normal operation once pressure drops below the close setpoint
- Heavy-duty electrical contacts rated for 120/240 Vac for compatibility with a wide range of HVAC control circuits
- Open setpoint: 400 PSIG — protects equipment from dangerous high-pressure conditions
- Close setpoint: 300 PSIG — restores circuit continuity when pressure returns to safe operating range
Specifications
- Brand: Johnson Controls
- Model / SKU: P100EE-78
- Control Type: Encapsulated Pressure Control
- Mounting: Direct Mount
- Switch Action: SPDT, Open on Pressure Rise
- Contact Voltage Rating: 120/240 Vac
- Open Setpoint: 400 PSIG
- Close Setpoint: 300 PSIG
- Reset Type: Automatic
- Contact Type: Heavy Duty Electrical Contacts
Applications
- High-pressure cutout protection in commercial refrigeration systems
- Air conditioning and heat pump compressor protection
- Industrial HVAC pressure monitoring and control circuits
- Any application requiring reliable SPDT pressure switching with automatic reset
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