United Electric Controls H100-218 Pressure Switch 100 Series

Description:

The United Electric Controls H100-218 Pressure Switch is used in industrial vacuum and low-pressure monitoring systems to provide automatic electrical switching when preset pressure or vacuum conditions are reached. Commonly installed in pumps, compressors, HVAC equipment, filtration systems, process machinery, and industrial automation applications requiring reliable vacuum sensing and equipment protection. Maintenance teams and system integrators use this part for repair, retrofit, expansion, or replacement of existing pressure sensing and control systems. The H100-218 features an adjustable vacuum range of 30 in. Hg vacuum to 0 PSI and is part of the rugged 100 Series switch family.

Applications:

The United Electric Controls H100-218 Pressure Switch is commonly used in vacuum pump systems, air compressor controls, process vacuum monitoring, filtration equipment, HVAC systems, and industrial safety interlocks. The switch utilizes a phosphor bronze bellows sensing element to detect pressure changes and actuate electrical contacts for alarms, shutdown functions, and automatic process control, helping maintain safe and efficient operation of critical industrial equipment. 

Technical Specifications:

• Brand: United Electric Controls
• Part Number: H100-218
• Product Type: Pressure Switch
• Series: 100 Series
• Switch Type: Electromechanical Pressure Switch
• Pressure Range: 30 in. Hg Vacuum to 0 PSI
• Process Variable: Vacuum Pressure
• Deadband: 1 to 2 in. Hg
• Function: Pressure Monitoring and Control
• Sensing Element: Phosphor Bronze Bellows
• Output Contacts: SPDT Snap-Action Switch
• Contact Rating: 15A @ 125/250/480 VAC
• Setpoint Adjustment: Internal Adjustment with High/Low Reference Scale
• Process Connection: 1/4 in. FNPT
• Connection Type: NPTF
• Enclosure Type: NEMA 4X Weatherproof Housing
• Housing Material: Epoxy-Coated Die-Cast Aluminum
• Repeatability: ±1% of Adjustable Range
• Proof Pressure: 30 PSI
• Overrange Pressure: 0 PSI
• Environmental Rating: IP65
• Suitable Media: Air and Compatible Gases
• Approvals: UL, cUL, CE
• Designed for Alarm and Shutdown Applications
• Compatible with Pumps, Compressors, and Vacuum Systems
• Engineered for Continuous-Duty Industrial Service

Common Replacements:

• United Electric Controls H100-188 Pressure Switch
• United Electric Controls H100-702 Pressure Switch
• United Electric Controls H100-534 Pressure Switch