The KNX IO 511.1 secure (1O2I) is a compact switching actuator with a bistable output and two binary inputs. The actuator offers functions for universal outputs such as scene control, timer, stairwell lighting, and heating valves (PWM for thermoelectric valve drives).

The inputs can be connected to conventional switches with an external voltage of 12 to 230 V. By default, the inputs are internally connected to the actuator. The actuator serves as a latching relay in conjunction with input B1. Input B2 is used for zero-cross detection.

Two push buttons and three LEDs allow for local operation and visualization of the device status. In addition to the output and input channels, the device features 16 independent functions for logic or time control.

The device supports KNX Data Security.

Technical Data

Mechanical Data

Housing: Plastic (PC)
Device for DIN rail mounting, width: 1 module (18 mm)
Weight: approx. 60 g

User Interface

Two buttons for local device control
Three multi-colored LEDs
KNX programming LED and KNX programming button

KNX

Device model System B
Compatible with ETS 5 (or higher)
Support for KNX Security

Connectors

Connector for KNX bus (red/black)
Plug-in terminal block (3-pole) for actuator channel 1
Plug-in terminal block (3-pole) for binary inputs

Output Channel (Actuator)

Relay type: 230V~ / 16A, bi-stable
Depending on the type of load (capacitive/inductive), the switching capacity may be significantly reduced.

Input Channels (Binary Inputs)

Voltage: 12 .. 230 V=~
Current: < 1 mA.