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AutomationDirect offers three types of motor protection relays for motor control:
Alternating Relays for motor load protection
Pump Seal Failure Relays for seal failure detection
are used for motor monitoring in special applications where the optimization of load usage is required by equalizing the run time of two loads. The motor load control alternating action is initiated by a control switch, such as a float switch, manual switch, timing delay, pressure switch, or other isolated contact. Each time the initiating switch is opened, the output relay contacts will change state, thus alternating the two loads.
Alternating Relays for Motor Monitoring