Relays and Contactors

Model ALT

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Product Bar End

Model ALT

Alternating Relay Model ALT

Alternating Relay


The Model ALT alternating relay is commonly used to alternate between two loads to equalize run-time. When an external control switch opens, the Model ALT’s output contacts transfer from one state to the other. When an external control switch closes, the output contacts remain in their current state. The SW option offers an override potentiometer switch on top of the relay that allows manual override control of either load or automatic operation.


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QtyModelDescriptionIn StockList PriceInternet Price
ALT-115-S-SW ALT RELAY 115VAC OVERRIDE In Stock213.88171.10
ALT-24-S-SW ALT RELAY 24VAC OVERRIDE In Stock208.56166.85


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  • Alternation between two loads to equalize run time
  • Two LEDs to indicate the energized load
  • Override switch
  • Debounce time delay

Supply Voltage:20-26 VAC/VDC, 95-125 VAC

Supply Current:40 mA

Contact Rating:SPDT, 480 VA @ 240 VAC

Control Signal:115 VAC, 2 mA, 24 VAC/VDC, 2 mA

Operating Temperature :-4° to 122℉ (-20° to 50℃)

Debounce Time Delay:0.5 sec

Aprroval:UL File E68520, CSA

Weight:0.35 lb (0.16 Kg)

Warranty:5 years


Download Additional Data

document   Catalog Page
document   Installation Instructions
document   Model-ALT