M-Bus Level Converter and Repeater for 100 Slaves

  • M-Bus Level Converter and Repeater for 100 Slaves

  • USB, Ethernet, 2x RS232C, RS485

  • Repeater for M-Bus extension for 100 slaves or cable network

  • Intelligent interface management

  • Status indicated by 6 LEDs

  • Mounting on DIN rail

The compact allrounder

The Pw100 is a transparent level converter for 100 M-Bus slaves with an abundance of interfaces and functions. Whether you read your meters with a DDC, involving them directly in your building control or want to access the data on a PC, the Pw100 with its RS232C, RS485, USB and TCP / IP interfaces offers all options. Another unique feature related to the large number of interfaces is their intelligent management. By this the Pw100 allows you to connect multiple external controllers simultaneously. The access to the M-Bus is monitored by a logic, that always connects only one interface at a time. By the additionally implemented repeater function, the Pw100 becomes the true allrounder among our compact DIN rail M-Bus level converters.

Technical Data

Operating Voltage

42,0 .. 43,5 VDC

Power Consumption

max. 15W

Temperature Range

0 .. 50°C

M-Bus Voltage (without load)

42 V ( Mark), 28V (Space)

Bus Impedance

5 Ω

M-Bus Standby Current

max. 150 mA

Overcurrent Threshold

> 200 mA

M-Bus Baud Rate

300 .. 38400 Baud

Galvanic Isolation

All interface are isolated from M-Bus and power supply. The Repeater input is additionally isolated from the other interfaces.


Light grey and black PC plastic protection class IP 30

H x B x T: 105 x 90 x 60 mm mounting on DIN rail

LED Status Indicators

Power, communication master, slave, warning, short circuit M-Bus, M-Bus activity


10/100 Mbit Ethernet, USB device, 2 x RS232 (terminals), RS485, Repeater (M-Bus IN)


Order Information

Order Number



M-Bus Level Converter and Repeater for 100 slaves


Power supply 42VDC, 15W, mounting on DIN rail


USB cable A to B plug/plug, length = 1m, grey


Serial DSUB 9 cable with 3 open lines


Network patch cable CAT5E FTP, Length = 1m, grey

Copyright© 2018  Relay GmbH

Designed By T.McDowell