PadPuls M4C

The PadPuls M4C is a pulse adaptor that connects up to four conventional meters with pulse output to a M-Bus system.

  • Four separated pulse inputs

  • Safe detection for up to 18 pulses per second at each input

  • Pulse debouncing

  • Pulse value free adjustable

  • Unit free selectable (e.g. Wh, kWh, MWh, kJ, m3, l,...)

  • Counter length: 8 decimal digits

  • Due-date function with integrated realtime clock and 15 monthly values

  • M-Bus protocol according to EN13757-2 and -3

  • Fully parameterizable by M-Bus or optical interface including overwrite protection

  • Transmission rates: 300, 2400 and 9600 baud with auto baud detection

  • Fully operable in case of M-Bus failure by integrated battery

  • Dimensions W x H x D: 53 x 91 x 58mm

  • mounted on DIN rail

  • Counter and denominator of pulse value free selectable

  • Tariff mode: 2 pulse inputs and 2 tariff switch inputs or 230VAC signal

  • Pulse input status reported

Technical Data

Power supply

Remote supply by M-Bus with automatic switch to battery on bus fail

Bus operation

max. 1.5mA (1 unit load), no load of battery

Operating temperature

0 .. 55 °C

Battery expectancy

Current draw typ. 8μA

Pulse inputs

max. 18 Hz

Potential-free contact

internal supply (3V, 30μA) debounce time 1ms

M-Bus protocol

according to EN1434-3


300, 2400 and 9600 baud (automatic detection)


primary and secondary

Housing IM002GC

Mounting DIN rail
TS35 light grey plastic
W x L x H = 53 x 91 x 58 m


Order Information

Order Number



PadPuls M4C

Including configuration software MBCONF

Copyright© 2018  Relay GmbH

Designed By T.McDowell