Chain drive


The 24 V VCD-0203-1-ACB chain drive is ideal for ventilation purposes thanks to its Advanced Communication Bus technology. Based on the Modbus RTU protocol, all ACB drives can be easily integrated into an existing building management system.
VCD-0203-0250-1-ACB M1-R VCD-0203-1-ACB
Product NamePriceQty
VCD-0203-0250-1-ACB M1-R

Performance features

  • For façade windows, roof windows and ventilation flaps in conservatories
  • With BSY+ motor and synchronised electronics controlled via microprocessor
  • 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
  • With optional burglary-resistant effect and maximum locking force of 4000 N

Technical Data

Supply 24 V DC / ±20 % / 0.35 A
Force of pressure 200 N
Tensile force 200 N
Nominal locking force ** 2000 N / 4000 N ***
Service life 20000 double strokes *
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 300 x 30 x 47 mm
* For vertical use, please consult with D+H Sales!
** Depending on the mounting, *** optionally increased nominal locking force


TypeArt. NoStrokeColourWeightRemark
VCD-0203-0250-1-ACB M1-R25.155.05250 mmSilver (~ RAL 9006)1.10 kg
VCD-0203-1-ACB25.155.101.10 kgVariable equipment possible

Brackets are not included and have to be ordered separately.

Potential drive options

Approvals / Certificates


VCD-0203-0250-1-ACB M1-R - ACB ventilation chain drive (24 V, 200 N, 250 mm) (387.53KB)

VCD-0203-1-ACB - Chain drive VCD-ACB (2.75MB)

VCD 203, VCD-0203-1-ACB, VCD 204 - VCD - 204-TMS+ Set, VCD-0204-1-ACB, VCD 204-K - VCD 204-K-TMS+ Set, VCD-0204-5-ACB - Chain drive VCD (5.51MB)

VCD-0203-0250-1-ACB M1-R [25.155.05]
VCD-0203-1-ACB [25.155.10]