Product Portfolio


Modular radio remote control receiver with I/O plug-in cards for control signals and feed-back data. Highly  configurable for industrial crane and machine control systems. The open architecture of the teceiver ensures that it is compatible with all transmitters which are part of the CATTRONcontrol family.

The high safety standard (EN 954-1, Categorie 4 for Stop command, EN ISO 13849) of the MMCU-4 is achieved by the use of dual-processor-technology, following the concept of hardware and software redundancies.

Each of the 16 million available system addresses is only once assigned. Redundant stop circuits monitor the output contacts, which in the event of failure shuts down the system.


  • Up to 64 relays + 2 safety relays
  • Profi bus-DP, DeviceNet, CANopen, EtherNet/IP, Modbus-TCP, Profi net IO
  • EN ISO 13849-1 Performance Level d for safety function & commands

All systems feature:

  • High safety-class through redundant hardware and software architecture
  • Suited for applications requiring EN ISO 13849-1 Performance Level d
  • Approvals and frequencies for worldwide deployment
  • Application-specific transmitter layout
  • Compatible with a number of receiver units, featuring various interface options
  • System configuration via easy accessible TransKey