ELSNER 70249 KNX B8-TH KNX interface - 8 binary inputs and 2 sensor inputs

The ELSNER KNX B8-TH interface is a versatile and compact device designed to integrate signals and values from conventional buttons and sensors into the KNX building bus.

Key Features

This interface has eight binary inputs and two additional sensor inputs for measuring temperature or temperature and relative humidity.

Binary Inputs

• 8 binary inputs configurable as switches, up/down buttons, dimmers or encoders in various configurations.
• The binary contacts are connected using the cables supplied with the delivery.

Sensor Inputs

• 1 input for T-UP basic temperature sensor or TH-UP basic temperature/humidity sensor, mountable on standard 55 mm frames.
• 1 input for T-NTC-ST temperature sensor.

Adjustment Functionality

The interface includes adjustment functionality for temperature and humidity control.

• Switching outputs for temperature and humidity based on threshold values that can be adjusted using parameters or communication objects.
• PI controller for heating (one or two stages) and cooling (one or two stages) based on temperature.
• PI controller for humidity: dehumidification/humidification (single level) or dehumidification (single or dual level).

Logic and Warnings

• 4 AND logic gates and 4 OR logic gates, each with 4 inputs.
• All switching events, as well as 16 logic inputs (in the form of communication objects), can be used as inputs for logic gates.
• Notice on the bus regarding temperature and humidity values within the comfort range (DIN 1946).
• Dew point calculation.

Installation and Use

The interface is designed to be installed in dry indoor spaces, avoiding condensation and maintaining a relative humidity not exceeding 95%.

The configuration is carried out using the KNX ETS software.