Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Gewiss
The Gewiss GW20853 is a 3-system module electronic thermostat designed for summer and winter fan-coil applications with an adjustment range of +5° C to +30° C. This unit features a NO/NC relay solenoid output, a 1P three-way switch fan output, and output contacts rated at 5 A (AC1) and 2 A (AC15). With a HS code of 90321020, this component integrates precise thermal control functionality into standard modular enclosures. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Gewiss references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Technical library
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Gewiss GW20853. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.