Description
DESCRIPTION
In the initial OFF state, all three switches are open, the Duplex Pump Controller is in the LOAD 1 position, and both loads are off. No action happens with the Controller or either load when the OFF switch closes. When the LEAD Switch closes, LOAD 1 turns on. When the LAG Switch closes, LOAD 2 turns on. Both loads remain on as long as all three switches are closed. When the LAG Switch opens, LOAD 2 remains on because the Duplex Controller simulates the function of an auxiliary contact. When the LEAD Switch opens, LOAD 1 remains on for the same reason. When the OFF Switch opens, both LOAD 1 and LOAD 2 are turned off simultaneously because all voltage is removed to both loads. The Duplex Controller toggles to the LOAD 2 position. The entire cycle is then repeated, but with LOAD 2 energized first followed by LOAD 1.
FEATURES
- Combines functions of alternating relay, control relay & auxiliary contacts in one unit - saves money
- Offers Sequence On - Simultaneous OFF (S.O.S.O.) Operation with three float switch inputs
- Protects against failures of both OFF & LEAD switches
- Low profile selector switch for normal alternation or to lock either load to be ON first
- 2 LEDs indicate load to energize first
