The GEZE ECchain is a 230 V chain drive for daily ventilation, mainly in residential buildings. If it is faulty, Vent Systems offers a chain drive with the same force in 230 V – operated directly via a switch, without a control unit.
GEZE ECchain and Vent Systems alternative compared
| Feature | GEZE ECchain | Alternative from Vent Systems |
|---|---|---|
| Voltage | 230 V AC | VS-KA: 230 V (also 24 V) |
| Push and pull force | 250 N each | VS-KA: 250 N (also 400 or 600 N) |
| Stroke | 200 or 400 mm | VS-KA: 100–450 mm, also 200 and 400 mm |
| Speed | approx. 9 mm/s | see data sheet |
| Dimensions | 409 × 44 × 63 mm (W × H × D) | Check the space on the frame beforehand |
| Degree of protection | IP30 | VS-KA: IP32 |
| Application | Ventilation, bottom-hung, tilt-and-turn and top-hung sashes | Ventilation of bottom-hung and top-hung windows |
Which drive fits?
- Standard case: VS-KA chain drive with 250 N in 230 V and the same stroke as before (200 or 400 mm). Bracket set included in the price.
- Stiff or large sashes: VS-KA with 400 N for more force reserve.
- Controlling several windows centrally: VS-KA in 24 V on a Ventilation control – this requires 24 V wiring.
What to consider when replacing a drive
- Connection: The 230 V drive is connected by an electrician. The existing switch can usually still be used.
- Stroke: Choose the same stroke as on the ECchain so that the sash does not open further than before.
- Installation space: Compare the length and depth of the new drive with the space on the window frame.
Photograph the type plate – we will name the right drive
Send us a photo of the type plate and the window via WhatsApp to +49 176 57801935 or call us: +49 40 50694631 (Mon–Fri 8 am–5 pm). You will receive a specific recommendation with price – stock items shipped from Hamburg within 24 hours.
All GEZE drives at a glance: Replacing GEZE window drives. All manufacturers in one list: replacement table for window drives (PDF)
GEZE and ECchain are trademarks or product names of GEZE GmbH. Vent Systems is not affiliated with GEZE. The manufacturer data comes from the publicly available technical data sheet (as of October 2026) and is for technical comparison only. Please check dimensions and values on the existing drive before replacing it.
Frequently asked questions
Which actuator replaces the GEZE ECchain?
As an alternative from Vent Systems, the VS-KA chain actuator in 230 V with 250 N and the same stroke of 200 or 400 mm fits. The bracket set is included in the price.
Can I keep using the existing switch?
Usually yes. The 230 V actuator runs directly from the switch, without a control unit. The connection is made by a qualified electrician.
Does the replacement fit the same installation space?
Compare the length and depth of the VS-KA with the space on the frame. The dimensions of the VS-KA are in the data sheet on the product page.
Note: The brand and product names mentioned belong to their respective owners. They are used here only to indicate technical compatibility. Vent Systems is not affiliated with these manufacturers; only Vent Systems’ own actuators are offered.
In brief: As an alternative to the GEZE ECchain, Vent Systems offers the VS-KA chain actuator in 230 V with 250 N and the same stroke of 200 or 400 mm. It runs directly from a switch without a control unit, and the bracket set is included in the price. For stiff sashes, the VS-KA with 400 N is available.