The Siemens binary input device with 4 potential-free inputs it is designed for processing binary signals from signal contacts, door/window contacts, or other potential-free contacts. The device is suitable for use in various applications such as lighting control, solar protection control, HVAC control, system state signalling, and pulse counting. It features potential-free contacts with internally generated polling voltage for easy connection to a KNX system. The device also offers clear direct operating levels for simulating input states during commissioning. With its maintenance-free terminals, it allows for easy and secure connection of solid, stranded, and fine-stranded conductors. The N 262D31 can be configured and controlled using the ETS and offers extensive operating and control functions including switching, dimming, scene control, pulse counting, logic operations, and more.

4 potential-free inputs for processing binary signals
Potential-free contacts with internally generated polling voltage for easy KNX system connection
Clear direct operating levels for simulating input states during commissioning
Extensive range of applications for lighting control, solar protection control, HVAC control, system state signalling, and pulse counting
Maintenance-free terminals for easy and secure conductor connection
Configurable and controllable using ETS with various operating and control functions
Logic operations per input for enhanced functionality
Compact and rail-mounted design for easy installation