Phase Monitor SAFEONE DN3PW1

The compact phase monitor SAFEONE DN3PW1 reacts quickly to phase failures (less than 10 ms).

It has semiconductor outputs as well as contact outputs and is suitable for phase voltages up to 400V AC

No Sensor necessary
Fast response time
Fits every switch cabinet


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Safe Phase monitoring easy as pie.

The DN3PW1 has semiconductor and contact outputs and is suitable for phase voltages up to 400V AC. Even minimal phase fluctuations are detected by our module. This allows the machine to be stopped before damage to electronic components or the machine itself occurs.

Relais_Diagnose Ausgang-2 sensorlos-2 Betriebsspannung-3 Betriebsspannung (2) Betriebsspannung-4 Breite 22,5mm-2


General Data

Operational Voltage 24V DC (-15/+10%)
Current consumption at Un 100mA
Voltage range U, V, W

min. 260V AC, max. 543V AC

Max. Voltage Range U, V, W 0,55mA respectively


Input/Output Data

Input voltage at IN1 24V DC -15 +10%
Input Voltage at IN1 5mA -15% +10%
Min. switching current 13-14, 23-24 10mA/ 24V DC
Breaking capacity 13-14, 23-24 1A, 24V DC
Contact fuse protection 5A inert
Max. Switch cycles 360 Cycles/h at max. Switching Current
Breaking capacity O3 1A, 24V DC
Surge voltage resistance 4KV, pollution degree 2 Environments
Response time 10ms -100ms internally adjustable


Environmental Data

Temperature -20 to +60°C
Storage Temperature -40 to +85°C
Vibration in all 3 Levels Sin 10-55Hz, 0.35mm, 10 cycles, 1 octave/min
Duty cycle 100%
Clearance and creepage distances DIN EN 50178, safe separation
Minimum protection type ≥IP54 for installation in the switch cabinet
Conductor cross-section (flexible only) 0.25 - 2.5mm^2 it Adherend sleeve
Connecting wire 60/ 75°C


Block Diagram

Bildschirmfoto 2022-10-14 um 15.52.41


Bildschirmfoto 2022-10-07 um 11.09.04

Sample Application

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S1= Switch for deactivating the monitoring

Contact Service Life

Electrical Serice Life of Output Contacts according to DIN EN 60947-5-1/ Appendix C.3

Bildschirmfoto 2022-10-14 um 15.57.36



  • Three-phase motor with frequency converter
  • Single-phase AC motors
  • Motors with star-delta connection
  • Servo Motors


  • Woodworking
  • Metalworks
  • Cosntruction
  • Spindles
  • Centrifuges
  • and many more...

Your advantages summarised



No external measurement systems equals less components, lower costs as well as faster Certification and Validation.

Be independent

Can be used on all three-phase and single-phase motors up to Performance Level e, regardless of supplier and system.

Fits every cabinet

With an overall width of only 22,5 mm.

Easy to set up

Dependent on the model, via USB interface on the PC or directly via SET key. In the case of our rotational direction monitor, no parameterisation is necessary at all.

Plug & Play

Easy to put into action without a great deal of prior knowledge. Integration into the circuit diagram is also very simple.

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Phasenwächter DN3PW1 Front Schatten