MPE duplex alternators are designed to perform automatic alternation motors or other types of loads, and are available in 24V, 120V, and 220V models. Alternation causes the loads to have even run times. The output relay contacts change state each time the control switch is opened. Two options are available: (1) a lead/lag/automatic selectror switch and (2) a push-to-test switch for added convenience or trouble shooting.
The Triplex Alternator is a 3 input, 2 or 3 output, solid state alternator that equalizes output load operational time. The opening of switch SW1 on pin 4 causes the Triplex Alternator to change to the next sequence in preparation for the next cycle. For each cycle, the Triplex Alternator outputs are turned on in a 1-2-3, 2-3-1 or 3-1-2 sequence, as switches SW1-SW3 are closed. A load select switch permits the Triplex Alternator to be used as a duplex alternator until system expansion requires Triplex operation.