Bus Door/Window Contact

Powered by Hybrid Panel through BUS connection, DC-23-BUS Series is a hardwired door contact designed to detect the unauthorized opening and closure of doors or windows. It is capable of BUS connection, allowing connection of several devices at once for enhanced flexibility and redundancy. DC-23-BUS Series has a built-in extension terminal for adding to an existing wired sensor or to double as a universal transmitter. DC-23-BUS Series is particularly created to enhance operational efficiency, lower power consumption and reduce maintenance costs.

Its elegant and modern design allows it to easily fit seamlessly into any home decor. Ideal for both residential and commercial installations and usage.

BUS 13.5V DC
EN50131 Grade 2


  • Sleek, modern design with long battery life
  • Mounted on door or window frames
  • Extension terminals for connection to wired devices
  • Doubles as an universal transmitter
  • Enables home automation and security systems to turn on/off appliances accordingly
  • Powerful magnet allows for an overall side-to-side gap distance of 28mm
  • Randomized supervision signals to check system integrity and troubleshooting
  • Tamper protection to prevent unauthorized removal
  • LED serves as a fault and test mode indicator
  • Low battery detection
  • EN50131 Grade 2, Class II certified
  • INCERT-certified


  • Power Source: From BUS connection to the control panel: BUS 13.5V DC
  • Current Consumption (In Standby Mode): 0.64 mA@13.5V
  • Current Consumption (Maximal): 11.2 mA@13.5V
  • Operating Temperature: -10°C to 45°C (14°F to 113°F)
  • Operating Humidity: Up to 85% non-condensing
  • Dimensions: 93.5 mm x 31 mm x 22.5 mm