Heavy Duty Air Compressor Pressure Switch with Unloader Valve, 140-175 PSI High Pressure Control Replacement for Sunny, SP-205, H1-140-175, 25 Amp 1-Port Pneumatic Switch
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Product details
| Management number | 221755069 | Release Date | 2026/05/03 | List Price | US$18.80 | Model Number | 221755069 | ||
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| Category | |||||||||
Heavy-Duty 140-175 PSI Air Compressor Pressure SwitchIs your high-pressure compressor struggling to start or failing to maintain consistent tank pressure? Our Heavy Duty Replacement Switch is engineered for professional and industrial applications. With a robust 25 Amp rating, this switch is designed to handle the electrical demands of powerful air compressor motors without overheating or failure.Compatible Models & Part Numbers:Fits Machines: Specifically designed for Sunny high-pressure air compressor series and various 2-stage pneumatic systems.Interchangeable Parts: Direct replacement for H1-140-175, SP-205, and similar 140-175 PSI control switches.Connection Type: Single-Port 1/4" NPT (Female).Advanced Features for Reliability:Integrated Unloader: Relieves head pressure during shut-off to prevent motor strain during the next startup cycle.High Amp Capacity: Rated for up to 25 Amps at 120V/240V, making it more durable than standard 15A or 20A alternatives.Factory Calibrated: Pre-set at 140 PSI On / 175 PSI Off for immediate "plug and play" installation.Safety Tip: Always verify your motor's amperage and the tank's maximum pressure rating before installation. Replacing a worn switch ensures your safety and prevents compressor damage.
- HIGH-PRESSURE CONTROL: Specifically factory-set for 140 PSI cut-in and 175 PSI cut-out. Ideal for heavy-duty air compressors requiring higher operating pressures for industrial tools.
- 25 AMP HEAVY-DUTY RATING: Features robust electrical contacts rated for up to 25 Amps, providing reliable power management for larger motors and preventing common contact burnout issues.
- INTEGRATED UNLOADER VALVE: Equipped with a built-in unloader valve to bleed off head pressure, ensuring smooth, effortless motor startups and extending the life of your compressor.
- PRECISE COMPATIBILITY: A professional-grade replacement for part numbers H1-140-175 and SP-205. Fits various Sunny air compressor models and standard single-port high-pressure systems.
- INDUSTRIAL BUILD QUALITY: Constructed with a high-impact reinforced housing and 1/4" NPT female connection, designed to withstand vibration and harsh shop environments.
| Model | H1-140-175 |
|---|---|
| Terminal | Spade |
| Brand Name | Generic |
| Part Number | H1-140-175 |
| Switch Type | Bipolar Transistor |
| Circuit Type | 1-way |
| Contact Type | Normally Closed |
| Manufacturer | Generic |
| Material Type | Acrylonitrile Butadiene Styrene |
| Mounting Type | DIN Rail Mount |
| Connector Type | Clamp |
| Current Rating | 0.01 Amps |
| Operation Mode | OFF-NONE-ON |
| Number of Items | 1 |
| Contact Material | Alloy Steel |
| Operating Voltage | 0.01 Volts |
| Specification Met | ANSI C-73 |
| Included Components | Heavy Duty Air Pressure Switch w/ Unloader |
| Number of Positions | 1 |
| Lower Temperature Rating | 0.01 Degrees Fahrenheit |
| Upper Temperature Rating | 0.01 Degrees Fahrenheit |
| International Protection Rating | IP00 |
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