Mechanical HVAC Thermostat, Eberle RTRE 3521, NC 4 A, 16 A

The Eberle RTRE 3521 is a reliable mechanical room thermostat engineered for precise HVAC control in residential and commercial settings. This wall-mountable device features a Normally Closed (NC) contact configuration with a 4 A and 16 A switching capacity, making it suitable for controlling heating or cooling loads. Its straightforward mechanical operation ensures dependable temperature regulation without external power or complex programming. Designed for easy installation and consistent performance, it offers efficient energy use and occupant comfort in a wide range of climate control systems.

Core Features and Benefits of Choosing the Eberle Mechanical HVAC Thermostat

• Mechanical temperature control with no external power required.
• 4 A / 16 A switching capacity for versatile HVAC load handling.
• Normally Closed (NC) contact suitable for heating control applications.
• Simple dial-based adjustment for user-friendly temperature setting.
• Fast and secure surface mounting with compact form factor.
• Durable build ensures long operational life and minimal maintenance.
• Energy-efficient regulation improves comfort and reduces power use.

Consistent HVAC Control with Minimal Complexity

The RTRE 3521 delivers dependable thermal regulation through intuitive mechanical switching. Its precise bi-metal sensor responds quickly to ambient changes, maintaining target temperatures without delay. Ideal for systems where digital control is unnecessary or power independence is crucial, the thermostat supports stable performance across offices, classrooms, and industrial zones. Its proven mechanical design provides longevity, especially in locations with frequent on/off cycles or fluctuating loads.

Product Applicable Areas

• Wall-mounted thermostat for electric or water-based heating systems
• Temperature control in residential homes and apartments
• Commercial offices, conference rooms, and retail units
• Warehouses and storage facilities requiring temperature consistency
• Ideal for retrofits and low-maintenance HVAC control setups
• Compatible with underfloor heating and conventional radiators

For more information please check the datasheets.