111SM47-T2

Snap action limit switches are electrically operated devices designed for a variety of applications. The 111SM47-T2 series is a snap action limit switch specifically designed for use in controlling commercial HVAC and the transport of fluids in industrial applications.

Description

The 111SM47-T2 snap action limit switch helps control the flow of fluids. It is a single-pole, double-throw switch with adjustable temperature settings and is IP65 rated. It is also UL/CSA certified and RoHS compliant. The housing is made of polycarbonate material, with an operating range of -50°C-110°C. The switch can be manually operated, though an external adjustable thermostat is built in to allow control of the switch’s activation temperature.

Working Principle

The 111SM47-T2 series utilizes a bimetallic thermal switch that operates using a snap action principle. When the ambient temperature reaches a certain level, the two elements of the bimetallic strip expand or contract, creating a contact between two different casings. This contact triggers the switch and activates or deactivates the device. The 111SM47-T2 features adjustable differential screw settings so the temperature activation point can be tailored for a variety of applications.

Applications

Due to its high precision and adjustable temperature settings, the 111SM47-T2 series is suitable for high-pressure applications such as HVAC system controls. The 111SM47-T2 can also be used to control pressure-sensitive valves, as well as pumps and other fluid-control equipment.

Conclusion

The 111SM47-T2 snap action limit switch is a reliable, high-precision device designed primarily for use in HVAC systems and the transport of fluids in industrial applications. It is IP65 rated and made of polycarbonate material with adjustable temperature settings to allow for precise control of the device. The snap action bimetallic strip ensures reliable and accurate operation to ensure the stability of the system.