Thermal actuator TWA-A NC with Danfoss RA connection, 24V AC supply voltage 088H3110

Thermal actuator for precise heating and cooling control

This Danfoss TWA-A NC thermal actuator is a reliable solution for controlling valves in heating and cooling systems. Designed to work with controllers operating in on/off mode, it provides effective temperature control in rooms. This model is characterized by a supply voltage of 24V AC/DC and a normally closed function (NC), which means that the valve is normally closed and opens when a control signal is received.

Design and application

The TWA-A actuator is designed to work with Danfoss RA, VMT and RAV valves, as well as valves from other manufacturers equipped with an M30x1.5 connection. It has a valve position indicator, which makes it easy to visually check the operating status. Thanks to its compact dimensions (diameter 40.5 mm, width 68 mm, height 90 mm) and a cable length of 1.2 m, installation is simple and convenient. This is particularly important for both installers and end users who value ease of installation and use.

Advantages and product features

• Versatility: Compatible with various types of Danfoss valves (RA, VMT, RAV) and valves from other manufacturers with an M30x1.5 thread.
• Position indicator: Allows for quick visual assessment of the valve status – open or closed.
• Low energy consumption: Power consumption at 2 VA makes the device energy-efficient. Maximum power consumption is 7 VA.
• Durability: The housing with an IP41 protection class provides resistance to dust and water splashes, which guarantees reliable operation even in difficult conditions.
• Two-point signal: Provides precise valve control.
• Cycle time: 180 seconds ensures smooth and controlled operation of the actuator.
• Stroke length: 2.8 mm allows for precise opening and closing of the valve.
• White color: The aesthetic appearance of the device fits into most installations.
• Ambient temperature: Operation in a temperature range from 60°C to 60°C ensures stable operation under typical conditions.
• Safety: Lack of overvoltage protection requires the use of additional protection in the electrical installation.

This thermal actuator is a solid choice for both professional heating and cooling system installers and for users looking for a reliable solution to regulate the temperature in their home or company. Its versatility, ease of installation and high quality make it an ideal element of any modern heating or cooling installation.