Temperature transformer fan motor speed controller | 2,5A | 230VAC | surface-mounted | IP54 | Sentera Controls | GTH-1-25L22 | 5401003017494

Technical specifications

Supply voltage: 230 VAC / 50–60 Hz
Maximum motor current: 2,5 A
Power consumption: 65 W
Output voltage steps: 0 – (80) – 110 – 140 – 170 – 230 VAC
Temperature control range: 5 – 35 °C
Proportional range: 2 °C
Temperature sensor: PT500 (not included)
Fuse: T 4 A-H (5 × 20 mm)
Enclosure: ABS plastic, UL94-V0
Color: grey (RAL 7035)
Protection class: IP54 (according to EN 60529)
Operating temperature: –10…+35 °C
Relative humidity: < 95 % rH (non-condensing)
Mounting: surface-mounted, indoor use only

Main functions and operation

Fan speed is controlled by temperature or manually
Automatic mode – speed changes in 5 steps according to data from an external temperature sensor (PT500, not included)
Manual mode – speed selection via rotary switch
7-position switch: OFF; Automatic mode; 5 fixed speed steps
When the set temperature is reached, the fan switches off automatically (applies to both modes)
Unregulated output – intended for valve control (e.g. hot water heating or cooling)
Integrated potentiometer for temperature setting
Designed for surface mounting indoors

Use and applications

For household users: Control of ventilation and heating in greenhouses, garages, storage rooms or utility spaces. Easy operation – clear manual mode and automatic temperature-based operation.
For engineers / designers: Reliable solution for HVAC systems. Quiet transformer-based control without electromagnetic interference. Ability to control both fan and valve with one device.
For electricians: Clear installation. Integrated mounting plate. IP54 enclosure suitable for industrial standards. For commercial and industrial facilities.
Warehouses; Workshops; Greenhouses; Utility and technical buildings; Hot water air heater systems

Advantages

Transformer-based control – safe for the motor
Automatic and manual modes in one device
5 fixed speed steps
Ability to control heating / cooling valve
IP54 – suitable for technical rooms
Reliable and durable solution

Disadvantages

PT500 temperature sensor not included
Designed only for single-phase AC motors
Indoor use only