Electromechanical pressure switch LF52A

differentialSPDTfor air

Overview
The LF52A is an adjustable differential pressure switch for water systems. It monitors differential pressure and outputs an alarm or cut-off signal to automatic control systems when the set point is reached. It serves as an alternative to paddle flow switches and reduces the need for frequent paddle replacements in chillers.

Applications
The compact LF52A fits confined installation spaces and is used in HVAC and industrial cooling to monitor water filters, pumps, heat exchangers, chillers and coils. It can also indicate pump or filter status to support preventive maintenance.

Key specifications

• Compatible media: water, air, oil and other non-corrosive fluids
• Contact: single group SPDT (microswitch)
• Electrical rating: 3A @ 250VAC; 5A @ 125VAC
• Ambient temperature: -20 to 71 °C
• Fluid temperature: -20 to 93 °C
• Maximum static pressure: 16 bar
• Maximum differential pressure: 10 bar
• Set-point repeatability deviation: ±1%
• Protection class: IP54
• Accessories (optional): converted capillary

Features

• Compact design for narrow installation environments
• Adjustable differential set point for flexible deployment
• SPDT microswitch output for easy integration with control systems
• Reduces maintenance compared with paddle flow switches
• Datasheet available on request