:: Products

MU-470, MU-471, MU-472, MU-473, MU-474

The MU-47x modules are designed for monitoring the state of digital signals (switches, etc.) and "on/off" control of technological systems. Additionally, the digital inputs are equipped with counters.

The digital inputs and outputs are isolated not only from other circuits (power supply and RS-485 interface), but from each other, and work with industrial signal levels.

Note: In case of higher signal concentration, modules MU-82x, MU-85x or MU-32xxA series can be recommended.


Type MU-470 MU-471 MU-472 MU-473 MU-474
Number of digital inputs 4 3 2 1 0
Type of digital inputs isolated, bipolar 24V
with 50Hz filter
- - -
Digital input signal
(level L)
<3VDC (both polarities)
<3VRMS (signal 50Hz)
- - -
Digital input signal
(level H)
10÷35VDC (both polarities)
15÷35VRMS (signal 50Hz)
- - -
Overvoltage protection ±60VDC (max. 1s)
60VRMS (signal 50Hz, max. 1s)
- - -
Digital input impedance 14kΩ approx. - - -
Number of digital outputs 0 1 2 3 4
Type of digital outputs - - - isolated, 24V
Digital output signal - - - 32VDC/0.3A max.
Digital port isolation 1kVDC (DIO block against other circuits)
100VDC (between DIO channels)
Number of counters 4 3 2 1 0
Counter frequency 10Hz max.
(signal asymmetry 40/60% max.)
- - -
Counter range 0÷4294967295 (i.e. 32-bit counter) - - -
Supply voltage 10÷30VDC
Power consumption 1.2W max.
Housing & Dimensions Modulbox 3M
Signal terminals screw terminals, wire 2.5mm2 max.