The Johnson Controls P100DC-3 is a rugged, encapsulated pressure control designed for reliable high-side refrigeration and HVAC system protection. Engineered for direct-mount installation, this SPST control opens on a pressure rise, shutting down the system when pressure reaches the factory-set 375 PSIG threshold. A lockout manual reset on close ensures the system cannot restart automatically after a high-pressure trip, requiring a deliberate manual reset — a critical safety feature that prevents equipment damage and protects personnel.
Key Features
- Encapsulated design for enhanced durability and environmental protection
- Direct-mount configuration for straightforward installation on refrigeration or HVAC systems
- SPST (Single-Pole, Single-Throw) switching action — opens on pressure rise
- Factory-set open point at 375 PSIG for reliable high-pressure cutout protection
- Lockout manual reset on close — prevents automatic restart after a high-pressure trip
- 120/240 Vac contact ratings for broad compatibility with common HVAC electrical systems
- Includes conduit box with opening for 1/2″ conduit connector for clean, code-compliant wiring
Specifications
- Brand: Johnson Controls
- SKU / Part Number: P100DC-3
- Control Type: Encapsulated Pressure Control
- Mounting Style: Direct Mount
- Switch Type: SPST
- Action: Open on Pressure Rise
- Set Point: Opens at 375 PSIG
- Reset Type: Lockout Manual Reset on Close
- Contact Voltage Rating: 120/240 Vac
- Conduit Box: Included, with 1/2″ conduit connector opening
Applications
- High-pressure cutout protection on refrigeration compressors
- Commercial HVAC system pressure safety control
- Chiller and condensing unit high-side protection
- Any application requiring manual-reset lockout after a high-pressure event
