
United Electric H100-191 Pressure Switch
The United Electric H100-191 Pressure Switch provides reliable, cost-effective pressure monitoring for process plants and industrial HVACR equipment. Featuring an adjustable pressure range of 10 to 100 PSI, this electromechanical switch is engineered with a welded 316 stainless steel diaphragm for maximum media compatibility with gases and liquids. Its NEMA 4X epoxy-coated aluminum enclosure ensures weather-tight protection in harsh environments, while the slanted cover design allows for easy wiring access to the SPDT snap-action switch output.
Designed for mission-critical tasks such as pump control, compressor monitoring, and industrial freeze protection, the H100-191 offers a tight repeatability of ±1.5% and a maximum proof pressure of 2500 PSI. The unit includes 1/2 inch NPTF process connections and internal adjustment with a high/low reference scale to prevent unauthorized setpoint changes. Contractors can rely on this heavy-duty pressure switch to operate independently of control systems, providing a robust fail-safe for alarming or emergency shutdown applications.
Key Benefits:- Corrosion Resistance: NEMA 4X rated epoxy-coated diecast aluminum housing protects against moisture and chemical exposure.
- Precise Control: Adjustable 10-100 PSI setpoint with a tamper-resistant internal lock for improved system security.
- Versatile Wiring: Simple SPDT electrical termination rated for 15A at 125/250/480 VAC, suitable for various voltage requirements.
- Durable Wetted Parts: 316 stainless steel sensor construction withstands high proof pressures and varied media types.
- Can this switch be used for outdoor pneumatic systems? Yes, the NEMA 4X rating ensures protection against rain, sleet, and external ice formation, making it ideal for outdoor industrial builds.
- How do you adjust the pressure setpoint? The setpoint is modified via an internal hex adjustment, which features a reference scale for accurate field calibration.
- Is this switch compatible with corrosive media? The 316 stainless steel diaphragm provides high resistance to many corrosive agents, but chemical compatibility should be verified for specific process fluids.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $316.66
-65%$316.66
$110.83United Electric H100-191 Pressure Switch
The United Electric H100-191 Pressure Switch provides reliable, cost-effective pressure monitoring for process plants and industrial HVACR equipment. Featuring an adjustable pressure range of 10 to 100 PSI, this electromechanical switch is engineered with a welded 316 stainless steel diaphragm for maximum media compatibility with gases and liquids. Its NEMA 4X epoxy-coated aluminum enclosure ensures weather-tight protection in harsh environments, while the slanted cover design allows for easy wiring access to the SPDT snap-action switch output.
Designed for mission-critical tasks such as pump control, compressor monitoring, and industrial freeze protection, the H100-191 offers a tight repeatability of ±1.5% and a maximum proof pressure of 2500 PSI. The unit includes 1/2 inch NPTF process connections and internal adjustment with a high/low reference scale to prevent unauthorized setpoint changes. Contractors can rely on this heavy-duty pressure switch to operate independently of control systems, providing a robust fail-safe for alarming or emergency shutdown applications.
Key Benefits:- Corrosion Resistance: NEMA 4X rated epoxy-coated diecast aluminum housing protects against moisture and chemical exposure.
- Precise Control: Adjustable 10-100 PSI setpoint with a tamper-resistant internal lock for improved system security.
- Versatile Wiring: Simple SPDT electrical termination rated for 15A at 125/250/480 VAC, suitable for various voltage requirements.
- Durable Wetted Parts: 316 stainless steel sensor construction withstands high proof pressures and varied media types.
- Can this switch be used for outdoor pneumatic systems? Yes, the NEMA 4X rating ensures protection against rain, sleet, and external ice formation, making it ideal for outdoor industrial builds.
- How do you adjust the pressure setpoint? The setpoint is modified via an internal hex adjustment, which features a reference scale for accurate field calibration.
- Is this switch compatible with corrosive media? The 316 stainless steel diaphragm provides high resistance to many corrosive agents, but chemical compatibility should be verified for specific process fluids.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The United Electric H100-191 Pressure Switch provides reliable, cost-effective pressure monitoring for process plants and industrial HVACR equipment. Featuring an adjustable pressure range of 10 to 100 PSI, this electromechanical switch is engineered with a welded 316 stainless steel diaphragm for maximum media compatibility with gases and liquids. Its NEMA 4X epoxy-coated aluminum enclosure ensures weather-tight protection in harsh environments, while the slanted cover design allows for easy wiring access to the SPDT snap-action switch output.
Designed for mission-critical tasks such as pump control, compressor monitoring, and industrial freeze protection, the H100-191 offers a tight repeatability of ±1.5% and a maximum proof pressure of 2500 PSI. The unit includes 1/2 inch NPTF process connections and internal adjustment with a high/low reference scale to prevent unauthorized setpoint changes. Contractors can rely on this heavy-duty pressure switch to operate independently of control systems, providing a robust fail-safe for alarming or emergency shutdown applications.
Key Benefits:- Corrosion Resistance: NEMA 4X rated epoxy-coated diecast aluminum housing protects against moisture and chemical exposure.
- Precise Control: Adjustable 10-100 PSI setpoint with a tamper-resistant internal lock for improved system security.
- Versatile Wiring: Simple SPDT electrical termination rated for 15A at 125/250/480 VAC, suitable for various voltage requirements.
- Durable Wetted Parts: 316 stainless steel sensor construction withstands high proof pressures and varied media types.
- Can this switch be used for outdoor pneumatic systems? Yes, the NEMA 4X rating ensures protection against rain, sleet, and external ice formation, making it ideal for outdoor industrial builds.
- How do you adjust the pressure setpoint? The setpoint is modified via an internal hex adjustment, which features a reference scale for accurate field calibration.
- Is this switch compatible with corrosive media? The 316 stainless steel diaphragm provides high resistance to many corrosive agents, but chemical compatibility should be verified for specific process fluids.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












