DMA-3 / DMA-3 TrueRMS
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  • DMA-3 / DMA-3 TrueRMS
  • DMA-3 / DMA-3 TrueRMS
  • DMA-3 / DMA-3 TrueRMS

Current intensity indicator DMA-3

DMA-3, 5908312592228
Digital. Three phases indicator.
Current intensity indicator DMA-3 is used to continuous measurement the value of the current in a circuits of three-phases.

Functioning
* Measuring the effective value of current in electrical circuit.
* Measuring the circumference of the circuit is separated from the power indicator.
* Index marked TrueRMS fitted with a transducer gives the correct value of the effective value of current intensity at deformed runs.

 

Implementation
DMA indicators are intended for current transformers with a rated secondary current of 5A. The current range for these transformers is from 25 to 1000/5 A. The primary value of the transformer's current specifies the maximum measured current and the actual current value displayed by the indicator.
The DMA-20A and DMA-3 20A are intended for direct measurements (without transformers applied) within the range of 0÷20 A.
 

Order labeling method:


INDIRECT MEASUREMENT (with transformers applied)


DMA- X  Y /5A Z 

X
Three-phase: 3



 		 Y
Primary value of the transformer's current :
25, 30, 40, 50, 70, 75, 80, 100, 120,
125, 150, 160, 200, 250, 300, 400,
500, 600, 700, 750, 800, 900, 1000.		 Z 
True RMS

 

 









Example:
*DMA-3150/5 A TrueRMS  a three-phase for 3×150/5A transformers, measurement range at 3 ×0÷150 A, incl. TrueRMS.


DIRECT MEASUREMENT (without transformers)

DMA- X  20A  Z

X
Three-phases: 3
 		 Z 
True RMS
 





Example:
  * DMA-3 20A TrueRMS - three-phase devicefor 20A, measurement range 3×0÷20A, with TrueRMS
  

DMA-3
Type
three-phase amperemeter
Power supply voltage
100÷265 V AC
Number of measurement channels
3
Display
for each phase 3-digit LED (height digit 10 mm)
Display range - direct measurement version
0 ÷ 20 A
Range of indications - intermediate measurement version
0 ÷primary current of the transformer
Accuracy of indications
1%
Maximum instantaneous overload
40 A (maximum to 1s)
Maximum current - direct measurement version
20 A
Maximum current - intermediate measurement version
5:00 AM
Terminal
pluggable terminal blocks 4,0 mm²
Tightening torque
0,5 Nm
Power consumption
4 W
Working temperature
-20÷50°C
Dimensions
3 modules (52,5 mm)
Assembly
on rail 35 mm
Ingress Protection Marking
IP20





Current transformer implementation

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