Trane SWT2291 SPNO Negative Pressure Switch

The Trane SWT2291 SPNO Negative Pressure Switch is a unique component used in HVAC systems. At 4" in length, it is a choice for assuring system safety and efficiency. Currently rated at 3A for 12 VAC, the switch is suitable for a variety of residential and commercial applications. It has a quick connect terminal type and is intended for use with 3/16" flexible plastic or rubber tubing. It works with a pressure rating of 0.5 PSI and monitors and responds to negative pressure conditions. This switch is rated from -4°F to 19°F, so it will perform in a temperature range. It has a power rating of 28/125 VA pilot duty at 24/125V AC.