United Electric Controls H400-156 Pressure Switch

Description:

The United Electric Controls H400-156 Pressure Switch is used in industrial pressure monitoring and control systems to detect pressure changes and provide automatic switching for equipment protection and process control. Commonly installed in pumps, compressors, hydraulic systems, lubrication systems, gas handling equipment, and industrial process machinery requiring an adjustable pressure range of 0–100 PSI with a 480 VAC control circuit. Maintenance technicians, process engineers, and system integrators use this pressure switch for preventive maintenance, alarm functions, emergency shutdown, and replacement of OEM pressure control devices. The H400 Series is a rugged electromechanical pressure switch designed for dependable operation in demanding industrial environments.

Applications:

The United Electric Controls H400-156 Pressure Switch is commonly used in pump protection systems, compressors, hydraulic power units, lubrication systems, chemical processing plants, water and wastewater facilities, power generation equipment, and OEM industrial machinery where reliable pressure monitoring and automatic switching are required. It is suitable for process control, pressure alarms, and safety shutdown applications.

Technical Specifications:

• Brand: United Electric Controls (UE)
• Model: H400-156
• Product Type: Pressure Switch
• Series: 400 Series
• Adjustable Pressure Range: 0–100 PSI
• Proof Pressure: 125 PSI
• Switching Voltage: 480 VAC
• Contact Rating: 15 A at 125/250/480 VAC
• Contact Type: Single SPDT Snap-Action Microswitch
• Deadband: 0.2–0.8 PSI
• Setpoint Adjustment: Internal Adjustment with Reference Dial
• Process Connection: 1/4 in. FNPT Nickel-Plated Brass
• Electrical Connection: 3/4 in. FNPT with Dual Knockouts
• Enclosure Rating: NEMA 4X
• Application: Industrial Pressure Monitoring, Alarm, and Process Control

Common Replacements:

• United Electric Controls H402-156 Pressure Switch
• United Electric Controls H400-S156B Pressure Switch
• United Electric Controls One Series Electronic Pressure Switch