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The ALT alternating relays are used to alternate between two loads. The ALT is commonly used in duplex pumping applications to balance the runtime of both pumps.
All ALT relays have a built-in debounce feature that prevents the relay from changing state if the switch or float contact bounces momentarily. The ALT-X has an internal cross-connected relay and is used in dual high-level float applications. These floats are commonly referred to as lead and lag floats.
The pumps alternate as in the ALT-S version but the crossconnected relay configuration allows both pumps to run simultaneously when both the lead and lag floats are closed. These relays are also available with a built-in switch (SW option) that is used to manually force one of the pumps to run every time the float switch is closed.
Must use the OT08PC socket for UL Rating!

  • Input Voltage (V): 95 to 125VAC
  • Maximum Input Power: 5W
  • Input Current Range (A): 40mA
  • Input Impedance (Ohms): 56k
  • Output Form: Cross wired DPDT
  • Output Load Rating (VA): 480VA @ 240VAC
  • Debounce Time Delay (s): 0.5s
  • Mounting Method: DIN rail or surface mount (plug-in to OT08-PC socket)
  • Operating Temperature: -40° to 50°C (-40° to 122°F)
  • Dimensions: 1.75 in H x 2.38 in W x 4.13 in D (44.5 x 60.3 x 104.8 mm)
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