Safety pressure switch CKB are compact disc type pressure switches with fixed set-points for long-standing use in all CO2 refrigeration systems. CKB safety pressure switch is used to protect compressor and the system against too high pressure. CKB safety pressure switch provides excellent performance, ensuring minimal drift of setting and extremely stable operation over the entire lifetime. It provides automatic or manual reset limit protection. The small size, lightness and high degree of protection means that it can be mounted directly on the refrigeration systems. The switch is available with different pressure settings to suit customer requirements.