🏊 Tridelta / Tecmark Air Switch 20A SPDT Latching | Model TBS-. Manufacturer Tridelta / Tecmark. Part : TBS - 324. Function Latching (Alternate Action: Press ON, Press OFF). Latching Operation: This is an Alternate Action switch—the circuit closes (turns ON) when the air button is pressed once, and remains closed until the button is pressed again to open the circuit (turn OFF).
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