F&F digital 3-phase current indicator DMA-3 TrueRMS
- F&F digital 3-phase current indicator DMA-3 TrueRMS
F&F digital 3-phase current indicator DMA-3 TrueRMS
Product description
Digital. Three-phase.
DMA-3 current indicator is used for continuous reading of load values of electrical circuits of a three-phase network.
DMA-3 current indicator is used for continuous reading of load values of electrical circuits of a three-phase network.
Operation
- measurement of the rms value of the current in each of the three phases.
- the measuring circuit is separated from the power circuit of the indicator.
- TrueRMS - the indicator equipped with an rms converter gives the correct value of current intensity with distorted waveforms.
Versions
DMA indicators are designed to work with current transformers with a rated secondary current of 5 A. Current range of current transformers: 25÷1000/5 A. The primary value of the current transformer determines the maximum measured current and the actual current value indicated on the indicator.
DMA-3 20 A is designed for direct measurement (without using transformers) in the range of 0÷20 A.
| Type | three-phase ammeter |
| Supply voltage | 100÷265 V AC |
| Display | for each phase 3-digit LED (digit height 10 mm) |
| Display range - direct measurement version | 0 ÷ 20 A |
| Indication range - indirect measurement version | 0 ÷ transformer primary current |
| Indication accuracy | 1% |
| Maximum momentary overload | 40 A (maximum up to 1s) |
| Maximum current - direct measurement version | 20 A |
| Maximum current - indirect measurement version | 5 A |
| Connection | screw terminals 4.0 mm² |
| Tightening torque | 0.5 Nm |
| Power consumption | 4 W |
| Operating temperature | -20÷50°C |
| Dimensions | 3 modules (52.5 mm) |
| Mounting | on a 35 mm rail |
| Protection degree | IP20 |
DMA-3RMS F&F
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2 years
2 years
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