• Snap action electrical contacts minimize chatter, bounce and wear and ensure longterm electrical and mechanical reliability
• The fail-safe dual bellows used in KPU 6 and KPU 16 prevent refrigerant loss and enable premature cut-out when a fault occurs
• SPDT or SPST switch a in single control models, SPST or SPDT with high-low pressure signal in dual control models
• Manual trip function (electrical contact function can be tested without the use of tools)
• Easily replaces Johnson Controls and Ranco products
• Wide pressure range:from low pressure KPU 2 with narrow differential to KPU 6 and KPU 16 for high pressure refrigerants (R410A, R744)
• Automatic, manual or convertible reset versions available
• Vibration and shock resistant

The KPU pressure switches are designed for use in refrigeration and air-conditioning systems to protect the systems from excessively low suction pressure or too high discharge pressure. They can also be applied to start and stop compressors and the fans of air-cooled condensers. The KPU pressure switches, in single and dual versions cover a comprehensive range of applications and are designed for use with HCFC and non-ammable HFC refrigerants.