TECH MB-04m Wired Gate Module

Setup and Use
- Connect and register the device: Connect the MB-04m to the Sinum central device using the SBUS connector (③).
- Add the device in Sinum: In the browser, log in and go to Settings > Devices > SBUS devices > + > Add device.
- Start registration: Briefly press the device registration button (②). Wait for the confirmation message.
- Optional (name/room): Assign a name to the device and (if desired) set it to a specific room.
- Manual operation mode: Press the manual operation button (①) to switch the relays’ output status (ON/OFF). Confirmation is shown by the LED labeled 1-2.
- Exit manual mode: Press and hold button (①) for 1–2 seconds. The output status LEDs turn off, and the outputs resume the state set in the Sinum application.
Introduction
- Gate module MB-04m is an electronic device equipped with 2 voltage-free relays and 2 two-state inputs.
- In the Sinum Centrala application, you can create a virtual gate controller and configure the device’s outputs and inputs. MB-04m is designed to be mounted on a DIN rail.
- Communication with the Sinum Centrala device is done by wire.
- A description of the operation and the process of creating a virtual gate controller can be found at www.techsterowniki.pl in the Baza wiedzy tab.
Description
Power supply
Communication
Two-state inputs status

Manual mode
- In order to switch to manual operation mode, press the manual operation button 1.
- The registration button 2 is used to switch between the controlled outputs in the manual mode.
- Using the button 1 (pressing it once), the user forces a change of the status (ON / OFF) – if the process has been successful, it is confirmed by a light signal from the LED labelled 1-2.
- When the manual mode is on, it is impossible to control the contact via the website or the application.
- To disable the manual operation mode, press and hold the button 1 again and hold it for 1-2 seconds.
- Once the manual mode has been switched off, all the output status LEDs go off and resume the state set in the Sinum application.
How to register the device in the Sinum system
- The device should be connected to the Sinum central device using the SBUS connector 3, and then enter the address of the Sinum central device in the browser and log in to the device.
- In the main panel, click the Settings > Devices > SBUS devices > + > Add device.
- Then briefly press the registration button 2 on the device.
- After a properly completed registration process, an appropriate message will appear on the screen.
- Additionally, the user can name the device and assign it to a specific room.
How to identify the device in the Sinum system
- To identify the device in the Sinum Central, activate the Identification Mode in the Settings > Devices > SBUS Devices > + > Identification Mode tab and hold the manual operation button on the device for 3-4 seconds.
- The device used will be highlighted on the screen.
Technical data
- Power supply: 24V DC ±10%
- Max. power consumption: 1W
- Maximum output load: 2A (AC1)* / 2A (DC1)**
- Operating temperature: 5 ÷ 50°C
- Acceptable ambient relative humidity: <80% REL.H
AC1 load category: single-phase, resistive or slightly inductive AC load. ** DC1 load category: direct current, resistive or slightly inductive load.
Notes
- TECH Controllers is not responsible for any damages resulting from improper use of the system.
- The manufacturer reserves the right to improve devices, update software, and related documentation.
- The graphics are provided for illustration purposes only and may differ slightly from the actual look.
- The diagrams serve as examples. All changes are updated on an ongoing basis on the manufacturer’s website.
- Before using the device for the first time, read the following regulations carefully.
- Not obeying these instructions may lead to personal injuries or controller damage.
- The device should be installed by a qualified person. It is not intended to be operated by children.
- It is a live electrical device. Make sure the device is disconnected from the mains before performing any activities involving the power supply (plugging cables, installing the device, etc.).
- The device is not water resistant.
- The product may not be disposed of to household waste containers.
- The user is obliged to transfer their used equipment to a collection point where all electric and electronic components will be recycled.

EU Declaration of conformity
Tech Sterowniki II Sp. z o.o. ul. Biała Droga 34, Wieprz (34-122)
Hereby, we declare under our sole responsibility that the module MB-04m is compliant with Directive:
- 2014/35/UE
- 2014/30/UE
- 2009/125/WE
- 2017/2102/UE
For compliance assessment, harmonized standards were used:
- PN-EN 60669-1:2018-04
- PN-EN 60669-1:2018-04/AC:2020-04E
- PN-EN 60669-2-5:2016-12
- EN IEC 63000:2018 RoHS
Wieprz, 10.10.2023

- The full text of the EU declaration of conformity and the user manual are available after scanning the QR code or at www.tech-controllers.com/manuals
Troubleshooting
- Outputs don’t respond via website/app: When manual mode is active, it is impossible to control the contact via the website or application. Disable manual mode by pressing and holding the button (①) for 1–2 seconds.
- Can’t identify which device is which in the Sinum Central: Open Settings > Devices > SBUS Devices > + > Identification Mode, then hold the manual operation button on the device for 3–4 seconds to highlight it on the screen.
- Registration not completed: During registration, briefly press the registration button (②) after selecting Add device. If registration completes successfully, a confirmation message appears on the screen.
CONTACT
- TECH STEROWNIKI II Sp. z o.o.
- ul. Biała Droga 31
- 34-122 Wieprz
- tel: +48 33 875 93 80
- www.tech-controllers.com
- support.sinum@techsterowniki.pl
- www.tech-controllers.com/manuals

Documents / Resources
![]() | TECH MB-04m Wired Gate Module |
References
- User Manualmanual.tools
Published: October 12, 2026

