Duct fan WKA125T - timer

The WKA125T duct fan is a solution for gravity ventilation systems, operating where natural airflow is too weak – e.g., in a bathroom, toilet, or utility room located far from the main duct.

It is an axial fan with a built-in timer that continues to run for 3–30 minutes after the light or a separate switch is turned off – ideal for removing moisture and odors after leaving the room. The delay time is smoothly adjusted via a potentiometer on the electronic circuit, without the need for additional controllers.

The product is made of ABS – a material resistant to corrosion and mechanical damage – and its motor operates on ball bearings, ensuring quiet and reliable operation even after 30,000 hours of use. Mounting is possible in both horizontal and vertical positions, facilitating adaptation to existing ducts in walls or ceilings.

The fan has a connection diameter of 125 mm and requires the use of a connector LMKO1xx-21 (or KO1xx-21) between it and the duct – without this, the installation is incorrect and may lead to loss of performance.

It operates at a low noise level of 37 dB(A) and consumes only 16 W, making it an energy-efficient solution for small spaces. The protection rating IPX4 ensures resistance to water splashes, but it is not suitable for direct mounting above a bathtub or shower.

It is powered from a 230 V mains supply, and its capacity is 205 m³/h at a maximum pressure of 60 Pa – sufficient to effectively exchange air in typical sanitary rooms.

The product is Polish, covered by a 5-year warranty, and intended exclusively for use with ventilation systems with a 125 mm diameter – it does not function as a standalone unit, but only as part of a duct chain.