Johnson Controls P170AB-2 Pressure Control Switch 7-50 PSI SPST

The Johnson Controls P170AB-2 is a differential pressure control switch designed for HVAC and refrigeration applications. This reliable switch monitors pressure differences and activates at preset levels to control compressors, fans, and other equipment.

Key Specifications:

• Pressure range: 10-100 PSIG operating range
• Differential setting: 7-50 PSI adjustable differential
• Electrical rating: 240V at 17 amps maximum
• Switch type: SPST (Single Pole Single Throw), open on low pressure
• Connection: 1/4 inch male flare (MFL) port
• Cut-in adjustment: 20 inches of water column/100 PSI range

Features:

• Open-on-low pressure operation for safety shutoff applications
• Adjustable differential allows precise control customization
• Durable construction for long-lasting performance
• Standard 1/4 inch flare connection for easy installation
• High contact rating suitable for direct motor control

This pressure switch is commonly used in commercial refrigeration systems, air compressors, and HVAC equipment where reliable pressure monitoring and control are essential. The open-on-low design provides automatic shutdown protection when system pressure drops below safe operating levels.