United Electric Controls H105-146 Pressure Switch 105 Series NEMA 4X 0-30PSI (SS2)

Description:

The United Electric Controls H105-146 Pressure Switch is used in industrial pressure monitoring and control systems to provide automatic electrical switching when preset pressure levels are reached. Commonly installed in pumps, compressors, hydraulic equipment, water treatment systems, process machinery, and industrial automation applications requiring reliable pressure control and weatherproof protection. Maintenance teams and system integrators use this part for repair, retrofit, expansion, or replacement of existing pressure sensing and control systems.

Applications:

The United Electric Controls H105-146 Pressure Switch is commonly used in pump protection systems, compressor control circuits, hydraulic power units, process pressure monitoring, safety shutdown systems, and industrial alarm applications. The switch utilizes a stainless steel pressure sensing element to detect pressure changes and actuate electrical contacts for alarms, interlocks, shutdown functions, and automatic process control, helping maintain safe and efficient operation of critical industrial equipment in harsh environments.

Technical Specifications:

• Brand: United Electric Controls
• Part Number: H105-146
• Product Type: Pressure Switch
• Series: 105 Series
• Switch Type: Electromechanical Pressure Switch
• Pressure Range: 0 to 30 PSI
• Pressure Range Metric: 0 to 2.07 Bar
• Function: Pressure Monitoring and Control
• Sensing Element: Stainless Steel Diaphragm
• Wetted Material: Stainless Steel
• Output Contacts: SPDT Snap-Action Switch
• Contact Rating: 15A @ 125/250/480 VAC
• Enclosure Rating: NEMA 4X Weatherproof
• Housing Material: Epoxy-Coated Die-Cast Aluminum
• Setpoint Adjustment: Internal Adjustable Setpoint
• Deadband: Adjustable Differential
• Process Connection: 1/4 in. NPT Pressure Port
• Electrical Connection: Conduit Entry
• Repeatability: ±1% of Adjustable Range
• Suitable for Air, Gas, Oil, Water, and Compatible Process Fluids
• Designed for Alarm and Shutdown Applications
• Compatible with Pumps, Compressors, Hydraulic Systems, and Process Equipment
• Intended for OEM Equipment and Replacement Installations
• Suitable for Maintenance, Retrofit, and Repair Projects
• Engineered for Continuous-Duty Industrial Service

Common Replacements:

• United Electric Controls H105 Pressure Switch 0-20 PSI Brass Wetted Materials
• United Electric Controls H100-191 Pressure Switch 10-100 PSI
• United Electric Controls H100-491 Pressure Switch 10-100 PSI 15A 480VAC