Overview
The Parker PPS1-1C3-RHM is an adjustable pressure switch engineered for monitoring and controlling air pressure in pneumatic systems. This SPDT (Single Pole, Double Throw) circuit switch delivers reliable electrical output when system pressure rises above or falls below a preset threshold. With field-adjustable set points between 20-120 PSI, the unit adapts to diverse industrial applications without requiring replacement. The 1/4″ NPT male connection and DIN 9.4 mm electrical connector provide standard pneumatic and control circuit integration.
Key Features
- Field-adjustable pressure range: 20-120 PSI set point customization
- SPDT circuit: Single pole, double throw configuration for flexible switching logic
- 3-amp electrical rating: Compatible with standard control and solenoid valve circuits
- 1/4″ NPT male connection: Standard pneumatic port interface
- DIN 9.4 mm connector: Industrial-grade electrical terminal
- NEMA 4, 13 enclosure rating: Washdown and corrosion-resistant construction
- Long-life elastomer diaphragm: Durability in repetitive pressure cycling
- Snap-action switch: Positive electrical switching without hesitation
Technical Specifications
- Part Number: PPS1-1C3-RHM
- Manufacturer: Parker Hannifin Corporation
- Pressure Range: 20–120 PSI (adjustable)
- Circuit Type: SPDT
- Electrical Rating: 3 Amps
- Port Thread: 1/4″ NPT male
- Electrical Connection: DIN 9.4 mm connector
- Enclosure Rating: NEMA 4, 13
- Maximum Operating Pressure: 250 PSI (Range 4 calibration setting)
- Diaphragm Material: Long-life elastomer
Typical Applications
The Parker PPS1-1C3-RHM is widely deployed in:
- Compressed air monitoring and system protection
- Pneumatic actuator and cylinder control circuits
- Solenoid valve triggering and sequencing
- Industrial compressor shutdown and cutoff systems
- Air dryer and filter maintenance cycles
- Plant-wide pneumatic distribution networks
Compatibility & Replacements
Compatible With
- Pneumatic control systems using 1/4″ NPT threaded ports
- Industrial PLC and relay-based control circuits rated for 3-amp switching
- Standard 24 VDC and 120 VAC pneumatic control systems
- Solenoid valve pilot circuits
- Air compressor unload and pressure maintenance systems
Replaces / Drop-In Replacement For
- Parker obsolete pressure switch model P01909 (direct replacement for hydraulic and pneumatic applications)
- Other PPS1 series variants with similar NPT and DIN connector specifications
Works With
- Pneumatic circuit design software and schematics
- Industrial relay and logic control systems
- Compressor control modules and pressure regulators
- Standard pneumatic and electrical integration platforms
