BAF1-2RQ9-RH Datasheet/PDFSnap Action, Limit Switches
Snap action, limit switches are an important type of device used for a variety of applications. The BAF1-2RQ9-RH is an example of a commonly used switch which is suitable for a range of applications due to its durable construction, IP67 rating and range of mounting options.
This particular switch is a two position SPDT bimetallic thermostatic switch. It has a 3/2 NC contact configuration which can be used to provide either on/off, over-temperature control or up to three separate control functions. The switch can be used in temperatures ranging from -25°C to 125°C and is able to withstand extreme shock, vibration and moisture. It is also capable of carrying up to 2A of current.
Application Field
One of the main application fields for BAF1-2RQ9-RH switches is the HVAC industry, where the switch is often used as a temperature controller. It is designed for use in gas, oil, electric and solid fuel-fired appliances and is suitable for applications such as furnaces, ovens, water heaters, boilers and refrigerators.
The switch is also commonly used in industrial applications such as pumps, fans, compressors and other low voltage equipment. Due to its flexible design and robust construction, the switch can also be used in a variety of other applications, including automotive, marine and mobile equipment.
Working Principle
The BAF1-2RQ9-RH switch is based on a bimetallic thermostatic working principle and operates through a combination of heat and pressure. When the temperature or pressure exceeds a certain level, it causes the switch to open or close, depending on the set-point. The switch is adjustable and features an adjustable differential which can be used to set how much the temperature/pressure needs to change before the switch is activated.
The switch is equipped with two contacts which give it the ability to operate in two distinct modes. The models with a 3/2 NC contact configuration provide either an on/off or a two-state (low/high) control. The models with a form B configuration provide up to three separate control functions.
Conclusion
The BAF1-2RQ9-RH switch is a robust and reliable device which is suitable for a wide range of applications. Its durable construction, IP67 rating and adjustable temperature/pressure differential make it an ideal choice for industrial, HVAC and other applications. Its bimetallic thermostatic working principle makes it easy to use and allows for a wide range of set-points and control functions.