United Hydac 3775-A-400-000 Pressure Switch 40 BAR (580 Psi)

Description:

The United Hydac 3775-A-400-000 Pressure Switch is used in hydraulic, lubrication, fluid power, and industrial process systems to monitor pressure and provide automatic electrical switching when preset pressure thresholds are reached. Commonly installed in hydraulic power units, mobile equipment, industrial machinery, pumps, and lubrication systems requiring reliable pressure monitoring and equipment protection. Maintenance technicians, hydraulic specialists, and system integrators use this switch for repair, retrofit, expansion, or replacement of existing pressure control systems.

Applications:

The United Hydac 3775-A-400-000 Pressure Switch is commonly used in hydraulic circuits, pump protection systems, lubrication skids, fluid power equipment, industrial automation systems, and mobile hydraulic machinery. The switch provides pressure-actuated electrical outputs for alarms, shutdown functions, interlocks, and control operations, helping maintain safe and efficient operation of hydraulic and process equipment.

Technical Specifications:

• Brand: Hydac
• Part Number: 3775-A-400-000
• Product Type: Pressure Switch
• Switch Type: Electromechanical Pressure Switch
• Pressure Range: Up to 40 Bar (580 PSI)
• Function: Pressure Monitoring and Control
• Output Type: Electrical Switch Contacts
• Pressure Sensing Method: Diaphragm/Piston Actuated Mechanism
• Adjustable Pressure Setpoint
• Designed for Hydraulic and Fluid Power Systems
• Suitable for Lubrication and Process Control Applications
• Compatible with Pumps, Valves, and Hydraulic Power Units
• Intended for OEM Equipment and Replacement Installations
• Suitable for Maintenance, Retrofit, and Repair Projects
• Industrial-Duty Construction
• Engineered for Continuous-Duty Operation

Common Replacements:

• Hydac EDS 344-3-040-000 Electronic Pressure Switch
• Hydac HDA 3800 Series Pressure Switch
• Hydac EDS 300 Series Pressure Switch