The Model 2611 Alternating Relay Controllers by Time Mark are used to equalize or optimize the run time of multiple pumps or compressors. These alternating relays come with a micro processor‑based controller that is specifically made to handle when two loads are required to alternate and provides equal run time for those loads. You can choose if you want the loads to automatically normally alternate while in the center position, or you can disable this by locking in the relay controller in a 1‑2 or 2‑1 sequence with the lead select switch.
