Chain drive


Not quite as compact as the VCD-0203-1-ACB but offering a longer stroke: The VCD-0204-1-ACB chain drive opens your windows up to 350 mm. Thanks to ACB technology, all drives can be controlled with precision down to the millimetre.
VCD-0204-0250-1-ACB M1-M VCD-0204-0350-1-ACB M1-M VCD-0204-1-ACB
Product NamePriceQty
VCD-0204-0250-1-ACB M1-M
VCD-0204-0350-1-ACB M1-M

Performance features

  • For façade windows, roof windows and ventilation flaps in conservatories
  • With integrated BSY+ motor and synchronised electronics controlled via microprocessor
  • Special chain stabilisation and centred chain outlet
  • Option of up to 8 drives in one synchronous group
  • Simple connection via plug connector
  • Programmable drive functions and different drive parameters
  • Running speed in CLOSED direction decreases to 5 mm/s (passive closing edge protection)
  • Time-controlled reversing when an obstacle is detected in the CLOSED direction (active closing edge protection)
  • Integrated ACB (Advanced Communication Bus) bus interface with Modbus RTU protocol
  • The drive is integrated directly via open bus communication through the ACB (Advanced Communication Bus), e.g. in a building management system

Technical Data

Supply 24 V DC / ±20 % / 0.35 A
Force of pressure 200 N
Tensile force 200 N
Nominal locking force 2000 N
Service life 20000 double strokes *
Stroke 250 mm - 350 mm
OPEN running speed 6 mm/s
CLOSED running speed 6 mm/s
Type of protection IP 30
Emission sound pressure level LpA ≤ 46 dB(A)
Temperature range 0 °C ... +60 °C
Housing Die-cast zinc
Surface Powder-coated
Connection 2.5 m PVC-cable
W x H x D 480 x 30 x 47 mm
* For vertical use, please consult with D+H Sales!


TypeArt. NoStrokeColourWeightRemark
VCD-0204-0250-1-ACB M1-M25.155.15250 mmSilver (~ RAL 9006)1.55 kg
VCD-0204-0350-1-ACB M1-M25.155.25350 mmSilver (~ RAL 9006)1.5 kg
VCD-0204-1-ACB25.155.351.5 kgVariable equipment possible

Brackets are not included and have to be ordered separately.

Potential drive options

Approvals / Certificates


VCD-0204-0250-1-ACB M1-M - ACB ventilation chain drive (24 V, 200 N, 250 mm) (378.75KB)
VCD-0204-0350-1-ACB M1-M - ACB ventilation chain drive (24 V, 200 N, 350 mm) (428.13KB)

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VCD-0204-1-ACB - ACB chain drive (384.63KB)
VCD-0204-1-ACB - ACB chain drive (782.56KB)


D+H service and sales partners

The expansive D+H service and sales partner network offers property-based planning and consulting, proper installation, careful maintenance and reliable supply with spare parts.

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