Description
The Johnson Controls P100AP-357 is an encapsulated, direct-mount pressure control designed for reliable system protection and automatic pressure-based switching in HVAC and refrigeration applications. Featuring an open-construction design and SPST switching action, this control opens on a pressure drop — making it ideal for low-pressure cutout and safety control duties.
Key Features
- Encapsulated design for enhanced durability and protection against environmental contaminants
- Direct-mount configuration for simplified installation without additional brackets or adapters
- SPST (Single-Pole, Single-Throw) switching action — opens on pressure drop
- Open construction for easy field inspection and serviceability
- Automatic reset — restores normal operation once pressure returns to the close setpoint
- Wide voltage compatibility supports both 120 Vac and 240 Vac systems
Electrical Specifications
- Contact Configuration: SPST
- Switching Action: Open on Pressure Drop
- Contact Voltage Rating: 120/240 Vac
Pressure Specifications
- Open Setpoint: 40 PSIG
- Close Setpoint: 80 PSIG
- Reset Type: Automatic
Construction & Mounting
- Mounting Style: Direct Mount
- Construction Type: Open
- Encapsulation: Yes — protects internal components from moisture and debris
Applications
- Low-pressure safety cutout control in refrigeration systems
- Compressor protection in commercial HVAC equipment
- Pressure-actuated switching in chiller and refrigeration circuits
- OEM and replacement installations requiring direct-mount pressure controls
The P100AP-357 is a trusted Johnson Controls solution for pressure-based system protection, combining rugged encapsulated construction with straightforward automatic reset functionality to minimize downtime and simplify maintenance.
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