BTJ1B2U - Home Automation JUNG - Free user manual and instructions
Find the device manual for free BTJ1B2U JUNG in PDF.
Pick your language and provide your email: we'll send you a specifically translated version.
| Product Type | KNX Universal Interface / Binary Input |
| Brand | JUNG |
| Model | BTJ1B2U |
| Product Category | Home Automation (KNX) |
| Number of Input Channels | 2 independent channels |
| Input Type | Potential-free contacts (floating) |
| Bus Connection | KNX bus terminal (red/black) |
| Bus Voltage | 21–32 V DC via KNX bus |
| Power Consumption | < 0.5 W (max) |
| Installation Type | Flush-mounted (in-wall) |
| Mounting Housing | Standard 60 mm flush-mounted box |
| Dimensions (approx.) | 71 × 71 × 42 mm (without frame) |
| Weight (approx.) | 100 g |
| Operating Temperature | -5 °C to +45 °C |
| Storage Temperature | -25 °C to +55 °C |
| Protection Rating | IP20 |
| Programming | KNX ETS compliant |
| Function Modes | Switch, pushbutton, blind, dimmer, value transmit |
| LED Indication | Red LED for bus status / programmable |
| Insulation | Class II (double insulated) |
| Maintenance | Wipe with a dry cloth; no special maintenance required |
| Spare Parts | Not user-serviceable; service by qualified technicians |
| Standards | CE certified, EN 60669-2-8 |
Frequently Asked Questions - BTJ1B2U JUNG
What is the JUNG BTJ1B2U used for?
The BTJ1B2U is a KNX universal interface that enables conventional pushbuttons, switches, or contacts to be integrated into a home automation system. It sends telegrams on the KNX bus based on connected input signals.
How many inputs does the BTJ1B2U have and what can be connected to them?
It has 2 independent input channels designed for potential-free contacts such as pushbuttons, toggle switches, or magnetic contacts. Each channel can be configured individually via the ETS software.
Does the device require a separate power supply?
No, the BTJ1B2U is powered directly from the KNX bus voltage (21–32 V DC). No additional power supply is needed, which simplifies installation.
Can the BTJ1B2U be used with conventional pushbuttons?
Yes, it is specifically designed for connecting conventional potential-free pushbuttons. Each input can detect closing and opening actions, allowing the device to send appropriate KNX control telegrams.
How is the device programmed?
The device is programmed using the KNX ETS tool. You can configure the function, behavior, and telegrams for each input channel, such as switching, dimming, or blind control.
Is the device suitable for use with multiple manufacturers' KNX systems?
Yes, the BTJ1B2U is a standard KNX device that adheres to the KNX protocol. It can be paired with anything on the KNX bus, regardless of manufacturer, including devices from ABB, Siemens, Hager, and others.
What should I do if the device does not respond on the bus?
First, check the KNX bus connection (red/black terminals) and ensure the bus voltage is present. Verify the physical address is properly assigned in the ETS project. If the LED is not lit, inspect the bus wiring and the device itself.
Can the inputs be used for 230 V AC signals?
No, the inputs are potential-free and must not be connected to mains voltage. Only low-voltage, isolated contacts are permitted. Connecting 230 V could damage the device and create a safety hazard.
What is the operating temperature range?
The BTJ1B2U is designed to operate in indoor environments with a temperature range of -5 °C to +45 °C. It should be protected from moisture and direct sunlight.
How should I clean the device?
Use a soft, dry cloth to wipe the surface. Avoid water, solvents, or abrasive cleaners, as they may damage the plastic housing and electronic components. Disconnect the bus before cleaning if possible.
User questions about BTJ1B2U JUNG
0 question about this device. Answer the ones you know or ask your own.
Ask a new question about this device
No questions yet. Be the first to ask one.
Download the instructions for your Home Automation in PDF format for free! Find your manual BTJ1B2U - JUNG and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. BTJ1B2U by JUNG.
USER MANUAL BTJ1B2U JUNG
Manual assistant
Powered by Anthropic
Waiting for your message
Product information
Brand : JUNG
Model : BTJ1B2U
Category : Home Automation