About this pump
The KSB Compacta UZ 3.900 D is a 2.2 kW sewage lifting unit from KSB, for a three phase (400V) supply.
It collects sewage below the sewer level, for example in a basement, and lifts it up to the drain. It has a built-in level sensor, so it starts and stops itself.
Price £23,838.90 inc VAT (£19,865.75 ex VAT), with free delivery to mainland Great Britain. We order it in for you and email the dispatch date.
Before you order
- Check your supply: this is a three phase (400V) pump.
- Check the duty: the pump must reach your total head at the flow you need. Use the datasheet curve, or ask us.
- This version has a built-in level sensor (Built-in level sensor), so it starts and stops itself without separate floats.
- Fitting is not included. We can install it or swap your old pump.



