Multi-Sensor Controller, Expansion Unit MU-N12

MU-N12 - Multi-Sensor Controller, Expansion Unit

*Please note that accessories depicted in the image are for illustrative purposes only and may not be included with the product.

Data Sheet (PDF)


CAD Data

360°view (3D PDF)


  • CE Marking
  • CSA




Main unit/Expansion unit

Expansion unit

Response time

Depends on the connected sensor model*1

Expansion units

Up to 4 expansion units*2


Control output

4 max.,
NPN open collector/PNP open collector selectable,
24 V or less,
Main unit: 50 mA or less*3,
Expansion unit: 20 mA or less,
Residual voltage: 2 V or less,
N.O./N.C. selectable

External input

5 max.,
Short-circuit current: NPN: 1 mA or less,
PNP: 2 mA or less,
For the applied voltage, see wiring diagrams
(page 3 of the instruction manual)

Analog output


Protection circuit

Protection against reverse power connection,
power supply surge, output overcurrent,
output surge, and reverse output connection

Power supply

Power voltage

24 VDC, ripple (P-P) 10% or less, Class 2 or LPS

Current consumption

55 mA or less (without load)*5


Allowable sensor current

150 mA or less


Allowable passing

900 mA or less

Environmental resistance

Ambient temperature

-20 to +50 °C -4 to 122 °F (No freezing)

Relative humidity

35 to 85 % RH (No condensation)

Vibration resistance

10 to 55 Hz, Double amplitude 1.5 mm 0.06", 2 hours in each of the X, Y, and Z directions

Shock resistance

1,000 m/s2, 6 times in each of the X, Y, and Z directions


Case and dust cover: Polycarbonate
Buttons: Polyacetal
Display panel: PMMA


Approx. 70 g

*1 The response time, as well as the types and number of inputs and outputs that are available, vary depending on the connected sensor model.
For details, see the specific "MU-N Series User's Manual" for the model that will be connected.
*2 Up to 5 N-bus devices, including the main unit (or network unit), can be linked together.
*3 20 mA or less: When using the expansion unit.
*4 For more information on Control output, External input, and Analog output wire allocation, please refer to the table of "Power Cable Pin Layout" on page 3 of this manual.
*5 1185 mA or less when a sensor is attached, 4 outputs (with loads) are used, and expansion units are connected.

Data Sheet (PDF) Other Models