
| Delivery Method | Delivery Time | Cost | |
|---|---|---|---|
|
Nova poshta
To a branch or by courier
|
1-5 days | According to the carrier's rates |
|
Pickup
From pickup points
|
1 day | Free of charge |
The warranty for electrical components and motors is *90 days upon presentation of a document confirming the purchase of the product.
The warranty for other spare parts is 14 days.

Vents RS-4.0-PS Speed Controller: Efficient Climate Management
The Vents RS-4.0-PS is a high-efficiency thyristor speed controller designed for smooth regulation of single-phase fan motors. With a rated current of up to 4.0 A, this device is an ideal solution for medium-capacity supply or exhaust ventilation systems where balancing airflow performance and noise levels is critical.
Key Technological Features
The primary advantage of this model lies in its advanced thyristor technology, which allows for precise output voltage adjustment to control motor intensity. Unlike stepped alternatives, the RS-4.0-PS series provides linear parameter changes, significantly extending equipment lifespan and preventing sudden load spikes in the electrical grid.
Functional Benefits:
Soft Start and Stop: Minimizes mechanical wear on fan bearings.
Overload Protection: A built-in fuse ensures safety during unexpected voltage surges.
High Precision: Allows setting a minimum speed threshold, eliminating the risk of motor overheating at low RPMs.
Installation Versatility: Designed for flush mounting (recessed installation), allowing it to integrate seamlessly into any interior while maintaining room aesthetics.
Application and Reliability
The device casing is made of high-quality, flame-retardant, and UV-resistant plastic. The front panel features a control knob that also functions as an ON/OFF switch, making operation highly intuitive even for inexperienced users.
Implementing the Vents RS-4.0-PS significantly reduces energy costs by ensuring the fan operates only at the required power level for the specific moment. It is a professional-grade tool for creating a comfortable microclimate in offices, retail spaces, and private residences where reliability and energy efficiency are prioritized.














