W&T connects
Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI
Data sheet:


MQTT broker on the DIN rail

The MQTT.box is a high quality Mosquitto MQTT broker for DIN rail mounting. It enables communication between network-capable automation components using MQTT protocol. Thanks to the second network interface data can also be made available for an additional network segment without allowing access from one network to the other.

The user management functionality lets devices located in the network to be authenticated with their own access data. With the additional configuration of an Access Control List (ACL) each user can be given "topic"-specific read and write authorization.



  • 2 x network

Management and connectivity:

  • Configuration
    • Startup using WuTility (three clicks and you’re done)
    • Web-based management
  • Application
    • MQTT broker for the DIN rail
    • User Management
    • Access control via ACL (Access Control List)

Power supply:

  • External power
    • Screw terminal
  • Power over Ethernet (PoE)
    • Phantom power using data pairs
    • Power over unused wire pairs
  • Buffer capacitors
    • controlled shutdown when disconnecting from the power supply

Standards & more

  • Conforms to standards both in office and industrial environments:
    • High noise resistance for industrial environments
    • Low noise emission for residential and business areas
  • 5 year guarantee

Technical data

Connections and displays:

  • Network:
    • 2 x 100/1000BaseT Autosensing/Auto-MDIX, RJ45
  • Galvanic isolation:
    • RJ45 network connection min. 1500 V
  • Supply voltage:
    • Power over Ethernet (PoE) or
    • 24 ... 48V DC (+/-10%) per screw terminal
  • Supply connection:
    • Plug-in screw terminal
  • Current consumption:
    • PoE Class 2 (3.84 ... 6.49W) and
    • typ. 140mA @ 24V DC with external supply
  • Indicators:
    • LEDs for System, Error and Network Status

Hard- and software

  • Processor and memory:
    • Marvell 88F6820
    • Flash: 4GB (eMMC)
    • RAM: 1 GB (DDR3)
  • Operating system:
    • BusyBox: v1.31.1
    • Kernel: v5.4.44
  • MQTT broker:
    • Mosquitto: v1.6.9

Housing and other data:

  • Housing:
    • Plastic housing with integrated DIN rail mount
    • 105 x 22 x 75mm (L x W x H)
  • Weight:
    • approx. 100g
  • Storage temperature:
    • -40 ... +70°C
  • Operating temperature:
    • 0 ... 60°C
  • Permissible relative humidity:
    • 0 ... 95% relative humidity, non-condensing
  • Scope of delivery:
    • MQTT.box
    • Quick start manual

* Our offering is intended only for commercial users. We will be happy to refer private end customers to trading partners through whom our products can be purchased.