AA-A2… differential pressure switches are field adjustable, compact pressure switches for automatic burner controls. Available with hose or NPT threaded connections.
AA-A2-4… differential pressure switches are suitable for making and/or breaking a circuit when the medium pressure changes relative to the set point. AA-A2-4… versions feature hose connections.
AA-A2-6… differential pressure switches are suitable for making and/or breaking a circuit when the medium pressure changes relative to the set point. AA-A2-6… versions feature NPT threaded connections that also include a test button in the lower housing.
Application: Differential pressure monitoring in firing, ventilation and air-conditioning systems,. The AA-A2… can be used as a pressure, vacuum or differential pressure switch for air and non-aggressive gases. Not suitable for natural gas, propane, butane and other combustible gases.
| Spec 1 | AA-A2… SPDT differential pressure switch in pressure and vacuum ranges. The differential pressure acts via the diaphragm against the force of the setting spring on the micro-switch. The pressure switch operates without any auxiliary power. |
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