Description The GUARDIAN® AUTO has been designed to operate connected to submerged and surface electric pumps, but it may be used with any asynchronous electric motor. A wide range of electric pumps may be managed with just one version. The rated current is calibrated by programming via the keys on the front of the panel. In the event of phase failure, overload or overvoltage, the system disconnects the motor [OVERLOAD], after a time which simulates the tripping of a thermal overload cut-out. Guardian Auto
