The range of wet rotor circulation pumps has been expanded with four new CNE models featuring modern electronic controls. A distinctive feature of these pumps is the presence of a pulse frequency converter, which makes the use of the pump more economical, and a permanent magnet motor, which significantly reduces the noise level during its operation. This pump is excellent for use in local heating systems. CNE pumps are also equipped with a night mode, in which the pump operation becomes as quiet as possible.