The MB-RPT-250 is a microcontroller-based, bidirectional, M-BUS to M-BUS repeater.
It can supply power to maximum 250 m-bus slave devices.

The MB-RPT-250 is used in domestic and industrial applications, where extension of the M-BUS network is needed.
It is provided with output short circuit protection on the M-BUS side.

It is mounted on standard M36 DIN rail.


Maximum number of M-BUS slave devices250
Nominal output voltage (mark)35,5 VDC ± 1 V
Power supply voltage165-235 VAC (210-270 VDC)
Ambient temperature, operating-20 ÷ +50°C
Dimensions (H/W/D)105/107/74 mm
IP protection classIP20
RS-485 RTU Modbus interface baud rate300, 1.2K, 2.4K, 4.8K, 9.6K, 19.2K, 38.4K bps
TCP Modbus DHCPyes, can be turned on or off
Maximum M-BUS cable length600 meters
Distance between MB-RPT-250 and farthest M-BUS slave300 meters


Example of installation